The present invention relates to a dental treatment unit (1) comprising: a chair (2) for seating the patient; a chair base (3) for holding the chair (2); a water tower (4) for cleaning/sanitizing dental instruments (5); a dentist's element (6) for depositing the dental instruments (5); an assistant element (7) for depositing dental instruments (5); at least one movable projector (8) for projecting images; at least one movable camera (9) for acquiring image data; a microphone (10) for acquiring acoustic data; a loudspeaker (11); and a computer (12) for controlling the projector (8), the camera (9), the microphone (10), the loudspeaker (11), and for processing the acquired image data and the acquired acoustic data, wherein the projector (8) is configured to project images onto a projection area (13), wherein the camera (9) is configured to acquire image data from the projection area (13), wherein the projection area (13) can be selectively moved in at least one of a plurality of different positions (14-20) which are defined relative to location and geometry of the chair (2), the chair base (3), the water tower (4), the dentist's element (6), and the assistant's element (7).
In a method for masking one or more regions surrounding an anatomical region of interest for each of one or more MRI images obtained from MRI imaging data, the one or more regions surrounding the anatomical region of interest are masked based on control data determined for identifying the anatomical region of interest in the MRI imaging data. The MRI imaging data may be obtained during an MRI exam of a patient for a measurement volume including the anatomical region of interest. The anatomical region of interest may be ascertained before performing the MRI exam.
A61B 5/055 - Détection, mesure ou enregistrement pour établir un diagnostic au moyen de courants électriques ou de champs magnétiques; Mesure utilisant des micro-ondes ou des ondes radio faisant intervenir la résonance magnétique nucléaire [RMN] ou électronique [RME], p.ex. formation d'images par résonance magnétique
The present invention relates to an extraoral x-ray system (1) suitable for dental panoramic imaging of a patient, comprising: an x-ray emitter array (3) having at least two individual x-ray emitters (3a; 3b; 3c) each for emitting x-rays, and offset at least along a predetermined direction; and an x-ray detector (4) for at least partially detecting the x-rays emitted by the individual x-ray emitters (3a; 3b; 3c) during one revolution, wherein the x-ray emitter array (3) and the x-ray detector (4) being arranged for movement relative to one another about an axis running parallel to the said predetermined direction, wherein the areas of the x-ray detector (4) respectively irradiated by the individual x-ray emitters (3a; 3b; 3c) at least partially overlap; an aperture means for collimating the x-ray radiation emitted by the individual x-ray emitters (3a; 3b; 3c) to the respective areas to be irradiated; a control device for moving the x-ray emitter array (3) and the x-ray detector (4) about the said parallel running axis, and for controlling the individual x-ray emitters (3a; 3b; 3c) and for reading out the image series of the respective irradiated areas of the X-ray detector (4) during the said revolution; a computing unit for generating one panoramic image (16) of a layer to be sharply imaged by using said at least two image series, the computing unit being configured to apply a weighting of image pixels when generating the said one panoramic image (16), wherein the said image pixels belong to at least the two image series.
The present invention relates to a dental handpiece (1) comprising: a head (4); a clamping means (13) which is rotatably arranged within a bearing (19) inside the head (4), and adapted for releasably clamping a dental drill (2), wherein the bearing (19) has an inner race (21) fixed to the clamping means (13) and an outer race (21) fixed to a housing (5) of the head (4); a driving means for rotating the clamping means (13) about an axial direction of the dental drill (2); a push button (7) which is arranged movably in the head (4) along the axial direction and configured to actuate the clamping means (13) to release the dental drill (2); and a biasing means to move the push button (7) away from the clamping means (13); characterized in that a radial inner surface (7a) of the push button (7) is arranged to contact and slide on a radial outer surface (20a) of the outer race (20) which configures a guide (12) for the moving push button (7), wherein the radial direction is perpendicular to axial direction of the dental drill (2); and wherein a radial clearance (A) is arranged between a radial inner surface (5a) of the housing (5) and a radial outer surface (7b) of the push button (7).
The present invention relates to a dental handpiece (1) comprising: a dental handpiece (1) comprising: a head (4); a rotatable hollow shaft (15) which is rotatably arranged inside the head (4); a driving means for rotating the hollow shaft (15); a chuck (26) having resilient arms (27) for releasably clamping a dental drill (2), wherein the chuck (26) is fixed into the hollow shaft (15) so as to rotate with same; a ball (14) which is axially movably arranged inside the rotatable hollow shaft (15) and in direct contact with the resilient arms (27) of the chuck (26), wherein the ball (14) partly protrudes through an opening (17) on the upper end of the hollow shaft (15), and wherein the opening (17) is smaller than the size of the ball (14); a push button (7) which is arranged in the head (4) and configured to contact, when pressed by a user, the partly protruding ball (14) and move the ball (14) downwardly in between the resilient arms (27) so as flex the resilient arms (27) radially outwards and release the dental drill (2), wherein the resilient arms (27) bias the ball (14) inside the rotatable hollow shaft (15) towards the opening (17); and a biasing means to move the push button (7) away from the ball (14), wherein the push button (7) is not in contact with the ball (15) when it is released.
The present teachings relate to a method for improving usability of dental imaging data, comprising: providing imaging data comprising a plurality of different images of at least one dental imaging modality of a patient; providing metadata for each of the images; selecting one or some of the images; retrieving in response to the selection at least one another image; wherein the retrieval is performed by comparing metadata of at least one of the selected images and metadata of at least one of the retrieved images. The present teachings also relate to systems, software products and storage media.
G16H 30/20 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le maniement d’images médicales, p.ex. DICOM, HL7 ou PACS
G16H 30/40 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le traitement d’images médicales, p.ex. l’édition
A61B 6/14 - Applications ou adaptations à l'art dentaire
G16H 10/60 - TIC spécialement adaptées au maniement ou au traitement des données médicales ou de soins de santé relatives aux patients pour des données spécifiques de patients, p.ex. pour des dossiers électroniques de patients
A61B 6/00 - Appareils pour diagnostic par radiations, p.ex. combinés avec un équipement de thérapie par radiations
A61B 5/00 - Mesure servant à établir un diagnostic ; Identification des individus
A method for optical intraoral imaging of an oral anatomy via an intraoral scanner, comprising: providing initial data related to the oral anatomy and/or the intraoral scanner; computing, using the initial data, a number of intraoral images to be captured via the intraoral scanner; acquiring, via the intraoral scanner, said number of intraoral images at a given location at the oral anatomy; rendering, from at least one of the acquired intraoral images and the initial data or from a plurality of the acquired intraoral images, a more optimally exposed two-dimensional intraoral image. The present teachings also relate to systems, a dental scanner, software products, uses and storage media.
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicales; TIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
8.
METHOD AND SYSTEM FOR PROCESSING DIGITAL DENTAL IMPRESSIONS
The present invention relates to a method for improving digital dentistry comprising: providing a 3D digital impression of a craniofacial anatomy; the digital impression described in terms a plurality of cells, providing a database of a plurality of dental procedures and their corresponding criteria for allowing applicability; analyzing the cells with respect to the criteria; determining, in response to the analysis, which of the dental procedures the digital impression is usable for and which of the dental procedures the digital impression is not usable for.
G16H 40/20 - TIC spécialement adaptées à la gestion ou à l’administration de ressources ou d’établissements de santé; TIC spécialement adaptées à la gestion ou au fonctionnement d’équipement ou de dispositifs médicaux pour la gestion ou l’administration de ressources ou d’établissements de soins de santé, p.ex. pour la gestion du personnel hospitalier ou de salles d’opération
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicales; TIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
A61C 9/00 - Méthodes de prise d'empreintes spécialement conçues pour les prothèses dentaires; Porte-empreintes à cet effet
G16H 70/20 - TIC spécialement adaptées au maniement ou au traitement de références médicales concernant des pratiques ou des directives
A61C 7/00 - Orthodontie, c. à d. obtention ou maintien de la position désirée des dents, p.ex. par redressage, nivellement, ajustement, séparation, ou par correction des malocclusions
9.
DENTAL TREATMENT SYSTEM FOR LOCATING THE APEX OF A TOOTH
The present invention relates to a dental treatment system (13) for locating the apex of a tooth of a patient, the system comprising: a lip clip (2) having a first electrode (3) attachable to the lip of the patient; a motorized handheld dental device (21) having a housing (22) which comprises: a rotating hub (23) for receiving an endodontic file (4) to be inserted in the root canal of the tooth of the patient; a second electrode (6) connected to the rotating hub (23); and an illuminating means (24) which is adapted to emit visible light (25) and mounted into the housing (22) at a location such that it projects light onto the distal end of the endodontic file (4); an electrical measurement unit (8) which is connectable to both the lip clip (2) and the motorized handheld dental device (21), and further adapted to locate the apex of the tooth based on a measurement of the electrical impedance between the first electrode (3) and the second electrode (6), and an optical output unit (10) adapted to output a signal indicative of the located apex, wherein the signal changes the illumination state of illuminating means (24) in accordance with the distance of the endodontic file (4) to the apex.
A method for visualizing a dental condition, comprising: projecting color-coded pattern type by means of an intraoral scanner; providing a plurality of projection images of the dental condition; detecting one or more anatomical features in each of the projection images; - removing color-coded pattern information from at least one of the projection images; rendering, via machine learning, color information to the one or more anatomical features in the projection images to generate corresponding an at least partially artificially colorized plurality of projection images wherein the pattern information is removed through the rendering. The present teachings also relate to a system, an intraoral scanner, software product and a storage medium.
G06T 19/20 - Transformation de modèles ou d'images tridimensionnels [3D] pour infographie Édition d'images tridimensionnelles [3D], p.ex. modification de formes ou de couleurs, alignement d'objets ou positionnements de parties
11.
ADDITIVE MANUFACTURING APPARATUS WITH OPTICAL MEANS FOR DIFFUSING/SCATTERING PROJECTED UV LIGHT TOWARDS PHOTOCURABLE RESIN
The present invention relates to an additive manufacturing apparatus (1) for additively manufacturing a component (2), comprising: a resin vat unit (3) which comprises: a reservoir (4) for storing UV light photocurable resin (5); and a UV-transparent window (6-4) at the bottom of the reservoir (4), wherein said UV-transparent window (6-4) includes a UV-1 transparent plate (6-4a) and a UV-transparent anti-adhesive flexible foil (6-4b); a projection unit (7) for projecting UV light (8) through the UV-transparent window (6-4) into the reservoir (4); a movable building platform (9) having a surface (9a) onto which said component (2) can be formed through layerwise curing of said resin (5). The UV-transparent window (6-4) further comprises: an optical means (6-5) which is adapted to diffuse the projected UV light (8) towards the building platform (9) into a region (R) where the UV light photocurable resin (5) is to be layerwise cured, wherein the optical means (6-5) is arranged in the light path of the projected UV light (8).
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p.ex. par irradiation globale combinée avec un masque
B29C 64/291 - Agencements pour irradiation pour un fonctionnement dans un ensemble, p.ex. avec des activateurs ou des inhibiteurs sélectivement appliqués
B29C 64/259 - Enceintes pour le matériau de construction, p.ex. récipients pour poudre interchangeables
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
A61C 7/00 - Orthodontie, c. à d. obtention ou maintien de la position désirée des dents, p.ex. par redressage, nivellement, ajustement, séparation, ou par correction des malocclusions
The present invention relates to an additive manufacturing apparatus (1) for additively manufacturing a component (2) comprising: a resin vat unit (3) which comprises: a reservoir (4) for storing UV-light photocurable resin (5); and a frame assembly (6) holding a UV-transparent window (6-4) at the bottom of the reservoir (4), wherein said UV-transparent window (6-4) includes a UV-transparent plate (6-4a) and a UV-transparent anti-adhesive flexible foil (6-4b); a projection unit (7) for projecting UV-light (8) through the UV-transparent window (6-4) into the reservoir (4); a movable building platform (9) having a surface (9a) onto which said component (2) can be formed through layerwise curing of said resin (5); characterized in that the UV-transparent window (6-4) further includes a removable frame-like spacer foil (6-4c) which has a predetermined thickness and can be removably mounted by means of the frame assembly (6) between the UV-transparent plate (6-4a) and the UV-transparent anti-adhesive flexible foil (6-4b) in order to create a plate-foil air gap (6-4d); and at least one air hole (6-2a) for communicating said plate-foil air gap (6-4d) with the atmosphere.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p.ex. par irradiation globale combinée avec un masque
B29C 64/291 - Agencements pour irradiation pour un fonctionnement dans un ensemble, p.ex. avec des activateurs ou des inhibiteurs sélectivement appliqués
B29C 64/259 - Enceintes pour le matériau de construction, p.ex. récipients pour poudre interchangeables
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
A61C 7/00 - Orthodontie, c. à d. obtention ou maintien de la position désirée des dents, p.ex. par redressage, nivellement, ajustement, séparation, ou par correction des malocclusions
METHOD AND SYSTEM FOR GENERATING DENTAL PANORAMIC IMAGES WITH SHARPENED DEPICTION OF CLINICALLY RELEVANT, PATIENT-SPECIFIC PRE-SELECTED ANATOMICAL STRUCTURES
The present teachings relate to a computer-implemented method of reconstructing a panoramic image of a patient's dental regions, comprising: a step of providing (102;402) at least one initial panoramic image reconstructed by using a plurality of projectional images of the patient and an initial layer including the mapping points corresponding to the patient's dental regions, to be sharply depicted in the initial panoramic image, characterized by further comprising: a step of detecting (104;404) one or more clinically relevant patient-specific pre-selected anatomical structures in the initial panoramic image in order to provide anatomical data (204; 206; 208; 210; 212) relating to the spatial characteristics of the detected clinically relevant patient- specific pre-selected anatomical structures respectively; a step of computing (106;406), using the anatomical data and the initial panoramic image, a new layer which includes the clinically relevant patient-specific pre-selected anatomical structure in order to provide a sharper depiction of the clinically relevant patient-specific pre-selected anatomical structures in a new panoramic image to be reconstructed compared to the depiction of the clinically relevant patient-specific pre-selected anatomical structure in the initial panoramic image; and a step of reconstructing (108;408) the new panoramic image using the plurality of projectional images of the patient and the computed new layer.
The present invention relates to an extraoral dental X-ray apparatus (2) for imaging of a patient in the dental region comprising: a radiator array (3) having at least two individual radiators (3-1;3 -2) each for emitting X-rays, and offset at least along a predetermined direction (z); and an X-ray detector (4) for at least partially detecting the X-rays emitted by the individual radiators (3-1;3-2), the radiator array (3) and the X-ray detector (4) being rotatably arranged about an axis (z') parallel to said predetermined direction (z), characterized by further comprising a control device for separately controlling the individual radiators (3-1;3-2), the control device being configured such that the emitted X- rays of the at least two individual radiators (3-1;3-2) differ in intensity and/or spectral distribution of the X-rays in order to effect an intensity and/or spectral distribution which can be varied along the predetermined direction (z), wherein the control device can adaptively adapt the intensity and/or spectral distribution to the anatomy of the patient.
A method for improving a medical scan of head anatomy of a patient comprising: providing a plurality of scan datasets related to the head anatomy; providing intraoral data related to one or more intraoral features of the patient; determining, using the intraoral data, those parts of the scan datasets during acquisition of which a movement related to the intraoral features is detected; constructing and/or correcting the medical scan, from the scan datasets, in response to the determination. The present teachings also relate to a method of improving a CT scan, a system, a device, and a storage medium.
Dental treatment unit (1) comprising: at least one removable handle (3); a removable instrument tray (4) for depositing instruments (5), wherein the instrument tray (4) has one or more claws (4a); a first locking mechanism (6) for locking/unlocking the handle (3) wherein, in the unlocked state, the handle (3) is removable from the dentist element (2); a second locking mechanism (7) for locking/unlocking the instrument tray (4) wherein, in the unlocked state, the instrument tray (4) including the claws (4a) is removable from the dentist element (2); a dentist element (2) which comprises a movable actuating element (8) which can actuate the first locking mechanism (6) in order to unlock the handle (3), and the same movable actuating element (8) can individually actuate the second unlocking mechanism (7) to unlock the instrument tray (4).
The invention relates to a local coil (26), having a mounting (35), at least one antenna (32), and a flexible element. The mounting (35) is designed to position the local coil (26) in a specified position relative to the head (43) of a patient (15), wherein the at least one antenna (32) is designed to receive high-frequency signals in a frequency and power range of a magnetic resonance measurement, and the flexible element is designed to at least partly form the local coil (26) on the surface contour of the head (43) of the patient (15). The local coil (26) at least partly surrounds the head (43) of the patient (15) when the local coil is positioned during use, and a section of the local coil (26), comprising the at least one antenna (32), can be positioned on the temporomandibular joint (42) of the patient (15) by means of the mounting (35). The local coil (26) is designed to receive magnetic resonance signals of the temporomandibular joint (42) of the patient (15) by means of the at least one antenna (32). The invention additionally relates to a magnetic resonance device (10) comprising a local coil (26), said magnetic resonance device (10) being designed to detect magnetic resonance signals of a diagnostically relevant region of the head (43) of the patient (15) using the local coil (26).
The present invention relates to a computer-implemented method for reconstructing a dental DVT image, comprising the steps of: (S1) providing a sinogram acquired through an extraoral dental X-ray device during a rotation of at least 180 degrees around a patient's head and an initial projection geometry; (S2) geometry calibration through varying the projection geometry and evaluating the varied projection geometry using data consistency constraints derived from a first volume generated from the sinogram using the varied projection geometry in a first reconstruction method, wherein the first reconstruction method uses first reconstruction parameters are used; (S3) generating a final volume with a final reconstruction method using the varied projection geometry and final reconstruction parameters from the sinogram, wherein the first reconstruction parameters of the first reconstruction method and the final reconstruction parameters of the final reconstruction method differ in at least one reconstruction parameter.
The invention relates to a local coil (26), comprising at least one antenna (32), a base element (30), a holding element, a first guide mechanism (33), a second guide mechanism (33) and a safety mechanism (50), wherein the at least one antenna (32) is designed to receive high-frequency signals in a frequency range and power range of a magnetic resonance measurement and wherein the at least one antenna (32) is mechanically connected to the holding element (31), wherein the base element (30) is designed to hold the holding element (31) together with the at least one antenna (32) in a position appropriate for use on a diagnostically relevant body region of a patient (15), wherein the first guide mechanism (33) is mechanically connected to the base element (30) and the holding element (31) and is designed to position the holding element (31) variably relative to the base element (30) and wherein the second guide mechanism (33) is mechanically connected to the holding element (31) and the at least one antenna (32) and is designed to position the at least one antenna (32) variably relative to the holding element (31), wherein the safety mechanism (50) is designed to prevent a collision between the at least one antenna (32) and the patient (15), in particular the diagnostically relevant body region of the patient (15), during a transfer of the holding element (31) from an open position into a closed position by means of the first guide mechanism (33). The invention further relates to a magnetic resonance apparatus (10) comprising a local coil (26) according to the invention.
G01R 33/34 - Systèmes d'excitation ou de détection, p.ex. utilisant des signaux radiofréquence - Détails de structure, p.ex. résonateurs
G01R 33/3415 - Systèmes d'excitation ou de détection, p.ex. utilisant des signaux radiofréquence - Détails de structure, p.ex. résonateurs comprenant des bobines de surface comprenant des ensembles de bobines
20.
DENTAL COIL AND MAGNETIC RESONANCE DEVICE FOR IMAGING A JAW REGION
The invention relates to a dental coil (26) comprising a first element (30) and a second element (32). The first element (30) consists of a dimensionally stable material and has a recess (31) which is suitable for receiving a mouth region and/or a nose region of a patient (15) when the dental coil (26) is positioned on the jaw region (43) of the patient (15) during use, and the second element (32) has a flexible element which is designed to allow the flexible element to take the shape of the jaw region (43) of the patient (15), wherein the first element (30) and the second element (32) have an antenna which is designed to receive high-frequency signals in a frequency and power range of a magnetic resonance measurement. The invention additionally relates to a magnetic resonance device (10) comprising a dental coil (26), said magnetic resonance device (10) being designed to image the jaw region (43) of a patient (15).
G01R 33/34 - Systèmes d'excitation ou de détection, p.ex. utilisant des signaux radiofréquence - Détails de structure, p.ex. résonateurs
G01R 33/3415 - Systèmes d'excitation ou de détection, p.ex. utilisant des signaux radiofréquence - Détails de structure, p.ex. résonateurs comprenant des bobines de surface comprenant des ensembles de bobines
21.
RIGHT/LEFT SYMMETRICAL INSTRUMENT AND SUCTION HOSE ADAPTERS
The present invention relates to a dental treatment unit (1) with a water unit (2) comprising a water collector (3) with an inlet (3a) for water and cleaning chemicals and an outlet (3b); a removable instrument hose adapter (4) for plugging into a first slot (3cl) of the water collector (3), the instrument hose adapter (4) having one or more openings (4a) for connecting instrument hoses (5), wherein in the plugged-in state the openings (4a) are in fluid communication with the outlet (3b); a removable suction hose adapter (6) for plugging into a second slot (3c2) of the water collector (3), the suction hose adapter (6) having one or more openings (6a) for connecting suction hoses (7), wherein in the plugged-in state the openings (6a) are in fluid communication with the inlet (3a) characterized in that the instrument hose adapter (4) and the suction hose adapter (6) are designed to be interchangeable with one another, so that each can be optionally plugged into the first slot (3c1) or into the second slot (3c2).
The invention relates to a method for digital volume tomography (DVT) imaging in the dental field, characterized in that it comprises the following steps: (a) The patient is positioned in the X-ray device (2); (b) A 3D scout image (9a) with reduced dose and with a predefined volume sizes (10) and a predefined center of rotation (11') is created; (c) on the 3D scout image (9a), the practitioner marks the tooth (12) for which it is desired to have high-resolution information (9b) with an enveloping geometry (13); (d) a software determines, based on the position of the enveloping geometry (13), the available centers of rotation (11) at which this enveloping geometry (13) can be imaged, and calculates, based on reference points (13a-13h) of the enveloping geometry (13), the imaging positions (13a'-13h') on the X-ray detector (4) for each of the available centers of rotation (11); (e) based on the imaging positions (13a'-13h'), a center of rotation (11") is selected from the set of available centers of rotation (11), and for this center of rotation (11"), the aperture positions (14a-d) for the imaging and the detector regions (4a) to be irradiated for the imaging are determined; (f) The previously determined aperture positions (14a-d) and the detector regions (4a) to be irradiated are transmitted to the X-ray device (2) and now the high-resolution imaging is carried out with the center of rotation (11") selected from the set of available ones and the transmitted aperture positions (14a-d); (g) The high-resolution image (9b) is reconstructed and the newly acquired high-resolution information (9b) is superimposed in the 3D scout image (9a); (h) The practitioner receives the 3D scout image (9a) for diagnosis and further use, in which the previously marked enveloping geometry (13) is superimposed by the high-resolution information (9b).
The present invention relates to a method of producing a panoramic image, characterized in that it comprises the following steps: (S1) Determining the jaw arch form (11a) as a model-based prior knowledge about the anatomy of a patient (10) based on one or more previous panoramic images or 3D images or one or more optical 3D scans of the patient; (S2) Determining a patient-specific x-ray device imaging trajectory (12) for the panoramic image of the patient (10) to be produced by using the model-based prior knowledge so that the jaw arch from (11a), in particular the position of the teeth (11b) can be optimally exposed and imaged; (S3) Performing the imaging on the basis of the determined patient- specific x-ray device imaging trajectory (12) to acquire imaging data; (S4) Adjusting reconstruction parameters according to the determined patient-specific x-ray device imaging trajectory (12); (S5) Determining the patient-specific focal curve (14) for the panoramic image of the patient (10) to be produced by using the model-based prior knowledge so that the jaw arch form (11a) in particular the position of the teeth (11b) can be optimally reconstructed; (S6) Reconstructing the panoramic image using the acquired imaging data, the adjusted reconstruction parameters including the determined patient- specific focal curve (14), and a layer to be imaged which overlaps with the determined jaw arch form (11a), wherein the patient-specific focal curve (14) lies within said layer to be imaged; (S7) displaying the reconstructed panoramic image.
The present teachings relate to a method for processing a digital dental impression comprising: displaying an image of the digital dental impression; wherein the image comprises: a shaded region representative of a part of the oral anatomy which is relevant for a dental procedure, and the shaded region being enclosed within a boundary; and an unshaded region representative of a part of the oral anatomy which is not relevant for a dental procedure, wherein the unshaded region and the shaded region are separated from each another by the boundary, receiving user input for altering the shaded region and/or unshaded region; detecting completion of a stroke generated by the user input; altering, the shaded region and/or the unshaded region, in response to the stroke completion. The present teachings also relate to a method for processing digital three-dimensional shapes, a dental procedure assisting system, uses and computer software products.
G06F 3/04845 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] pour la commande de fonctions ou d’opérations spécifiques, p.ex. sélection ou transformation d’un objet, d’une image ou d’un élément de texte affiché, détermination d’une valeur de paramètre ou sélection d’une plage de valeurs pour la transformation d’images, p.ex. glissement, rotation, agrandissement ou changement de couleur
G06F 3/04883 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p.ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p.ex. des gestes en fonction de la pression exer utilisant un écran tactile ou une tablette numérique, p.ex. entrée de commandes par des tracés gestuels pour l’entrée de données par calligraphie, p.ex. sous forme de gestes ou de texte
25.
IMPROVED MOTION ARTIFACT COMPENSATION THROUGH METAL ARTIFACT REDUCTION
The present invention relates to a method for geometric calibration of a DVT imaging in the dental field, characterized in that it comprises the following steps: (S1) reconstruction of a first volume (1) from a sinogram with an initial projection geometry; (S2) detection of the metal areas in the sinogram; (S3) correction of the metal areas in the sinogram; (S4) reconstruction of a second volume (2) from the corrected sinogram from step (S3) with the initial or a varied projection geometry; (S5) geometrically calibrating by varying the projection geometry and evaluating by a similarity measure between a simulated sinogram of the reconstructed second volume (2) and said sinogram or the corrected sinogram, wherein the simulated sinogram is calculated from the reconstructed second volume (2) using the varied projection geometry; wherein at least a partial region of the following data: (a) sinogram from step (S1); (b) corrected sinogram from step (S3); (c) simulated sinogram; (d) intermediate result for calculating the similarity measure derived from at least one of said sinograms (a)-(c) being evaluated differently from the remaining regions of the data during the calculation of the similarity measure, said partial region including the metal regions from step (S2).
The present invention relates to a method for automatically generating a projection panoramic view (RPV) (1) from a dental DVT volume of a patient, comprising the steps of; (SI) localizing dental relevant anatomical structures (2) in the DVT volume by using a machine learning method; (S2) automatically placing a guide curve (3) by optimizing it based on the position of the localized dental relevant anatomical structures (2); (S3) defining a projection region (4) of the reprojection panoramic view (1) using the placed guide curve (3) without manual steps in the DVT volume so that the localized dental relevant anatomical structures (3) are encompassed; (S4) creating the reprojection panoramic view (1) by reprojecting the DVT volume in the defined projection region (4).
The present invention relates to a method for automatically generating a reprojection panoramic view (RPV) (1) from a dental DVT volume of a patient, which is aligned with the course of the mandibular canal (2), comprising the following steps; (S1) localization of the mandibular canal (2), (S2) automatic definition of a projection region (3) of the RPV (1), which comprises the following sub steps: (S2.1) automatically setting a guide curve (4) in a plane perpendicular to the patient longitudinal axis (5) using the localized mandibular canal (2); (S2.2) automatically defining a variable or constant thickness profile along the guide curve (4); (S2.3) Extruding the area defined by guide curve (4) and thickness profile along the patient longitudinal axis (5); and (S3) generating the RPV (1) by reprojecting the DVT volume in the defined projection region (3).
The present invention relates to a 3D printer (1) comprising a vat (1.1) having an at least partially transparent bottom (1.2) for receiving liquid photoreactive resin (1.3) to produce a solid component; a building platform (1.8) for holding and pulling out the component layer by layer from the vat (1.1); a projector (1.4) for projecting the layer geometry onto the transparent bottom (1.2); a transport apparatus (1.5) for at least downward and upward movement of the building platform (1.8) in the tray (1.1); and a control device for controlling the projector (1.4) and the transport apparatus (1.5), characterized in that the control device optimally feed forward controls the pull-off movement of the build platform in the 3D printer by means of a neural network.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
The present invention relates to a 3D printer (1) comprising a resin vat, a component carrier (2), a transport box (3) for depositing the component carrier (2), a transport device (4) for removing the component carrier (2) from the transport box (3) and transporting it into the resin vat, and for moving the component carrier (2) downward and upward in the resin vat, wherein the transport device (4) has translatory axes (5) in the vertical and horizontal directions, each of which can be driven independently by a motor (6), the transport device (4) having a locking device (7) for detachably connecting the component carrier (2), characterized in that the locking device (7), during the downward movement along the vertical translatory axis (5), reaches a specific position (P) by the drive of the respective motor (6), at which a stop (8) located on the vertical translatory axis (5) sets a coupling element (9) in motion, wherein a spring-loaded locking pin (10) arranged in contact with the coupling element (9) is immersed in a bayonet opening of the component carrier (2) by the movement, wherein the immersed locking pin (10) can be brought into a locking position in the bayonet opening (2a) via the horizontal translatory axis.
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p.ex. par irradiation globale combinée avec un masque
B29C 64/379 - Manutention des objets en 3D obtenus, p.ex. à l’aide de robots
30.
DEVICE FOR RECEIVING AND FIXING THE COMPONENT CARRIER OF A 3D PRINTER BY UTILIZING EXISTING AXES OF MOTION
The present invention relates to a 3D printer (1) comprising a resin vat, a component carrier (2), a transport box (3) for depositing the component carrier (2), a transport device (4) for removing the component carrier (2) from the transport box (3) and transporting it into the resin vat, and for moving the component carrier (2) downward and upward in the resin vat, wherein the transport device (4) has translatory axes (5) in the vertical and horizontal directions, each of which can be driven independently by a motor (6), the transport device (4) having a locking device (7) for detachably connecting the component carrier (2), characterized in that the locking device (7), during the downward movement along the vertical translatory axis (5), reaches a specific position (P) by the drive of the respective motor (6), at which a stop (8) located on the vertical translatory axis (5) sets a coupling element (9) in motion, wherein a spring-loaded locking pin (10) arranged in contact with the coupling element (9) is immersed in a bayonet opening of the component carrier (2) by the movement, wherein the immersed locking pin (10) can be brought into a locking position in the bayonet opening (2a) via the horizontal translatory axis.
B29C 64/379 - Manutention des objets en 3D obtenus, p.ex. à l’aide de robots
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p.ex. par irradiation globale combinée avec un masque
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
The present invention relates to a method for geometric calibration of a DVT imaging, by updating the geometric parameters used in the reconstruction method, wherein the updating of the geometric parameters is supported by a first correction method based on machine learning (ML) by using the result of the first correction method as a reference for a second correction method for parameter estimation, and wherein the second correction method for parameter estimation involves the measurement data of the DVT imaging, comprising the following steps: (S1) providing the measurement data of the DVT imaging and the geometric parameters; (S2) providing a first volume by applying a reconstruction method to the provided measurement data and the geometric parameters; (S3) providing a corrected volume by applying the first correction method to the first volume; (S4) providing updated geometric parameters by applying the second correction method to the measurement data and the corrected volume.
The present invention relates to a method for reconstructing a digital volume tomography (DVT) imaging in the dental field, characterized in that it comprises the following steps: (S1) estimating the projection geometry from the sinogram of a patient imaging using motion artifact compensation (MAC); (S2) reconstructing a first volume using the estimated projection geometry; (S3) detecting the metal regions in the sinogram and in the first volume (1) using the first volume and the estimated projection geometry; (S4) correcting the metal regions in the sinogram and generating a corrected sinogram; (S5) reconstructing a second volume with the estimated projection geometry and the corrected sinogram; and (S6) correcting the metal regions in the second volume.
The present invention relates to a 3D printer comprising: a vat having an at least partially transparent bottom (1.2) for receiving liquid photoreactive resin for producing a solid component; a building platform (2.1) for pulling the component layer by layer out of the vat; a projector for projecting the layer geometry onto the transparent bottom (1.2); a transport apparatus for moving the building platform (2.1) at least downward or upward in the vat; and a receiving apparatus (2) for detachably connecting the building platform (2.1) to the transport apparatus. The receiving apparatus (2) comprises a pivoting device (2.2) for pivotally holding the building platform (2.1) and is adapted to abut the underside of the building platform (2.1) parallelly onto the transparent bottom (1.2) of the vat when lowered by the transport apparatus, wherein the 3D printer is provided without any means for completely blocking the pivotal movement of the pivotably held building platform (2.1).
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p.ex. par irradiation globale combinée avec un masque
The present invention relates to a computer-implemented method for the automatic generation of component-describing data for use in a preparation of additive/subtractive manufacturing jobs for dental components such as splints, denture bases, models, restorations such as bridges and crowns, wherein for each at least one component type a specialized pre-trained neural network is used for setting surface and/or volume attributes of the dental component, wherein the surface and volume attributes describe the accuracy and quality requirements of construction elements of the dental components with regard to the intended use, wherein the accuracy and quality requirements comprise at least one of the following: geometric dimensional accuracy, mechanical strength, surface texture color, and the avoidance of the attachment of support elements, wherein the neural network has been pre-trained by means of dental components for which the surface and/or volume attribution has already been carried out.
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p.ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
A61C 1/08 - Eléments de machines spécialement adaptés à la chirurgie dentaire
A61C 7/08 - Appareils de contention du type épousant la forme de la bouche
A61C 7/00 - Orthodontie, c. à d. obtention ou maintien de la position désirée des dents, p.ex. par redressage, nivellement, ajustement, séparation, ou par correction des malocclusions
G16H 50/20 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicales; TIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour le diagnostic assisté par ordinateur, p.ex. basé sur des systèmes experts médicaux
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicales; TIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
G06F 113/10 - Fabrication additive, p.ex. impression en 3D
G06F 111/06 - Optimisation multi-objectif, p.ex. optimisation de Pareto utilisant le recuit simulé, les algorithmes de colonies de fourmis ou les algorithmes génétiques
35.
INTRAORAL X-RAY SENSOR FOR AUTOMATIC EXPOSURE CONTROL
The present invention relates to an intraoral X-ray sensor (1) for use with an intraoral X- ray system (3) having an automatic exposure control (AEC) functionality, characterized in that the intraoral X-ray sensor (1) includes an exposure analysis unit (1.2), an imaging X- ray detector (1.3), and a communication interface (1.1), wherein a scout shot or scout video stream received from the imaging X-ray detector (1.3) is analyzed by the exposure analysis unit (1.2) in the intraoral X-ray sensor (1) in order to record information on the exposure level of the scout image or video stream and to forward this information by means of the communication interface (1.1) to a decision unit (2.2) of the intraoral X-ray system (3), which is arranged externally to the intraoral X-ray sensor (1), and adapted for evaluation and decision of further exposures.
The present invention relates to an aligner (2) for use in the treatment of malocclusions/misalignments by means of force measurement of the aligner (2) on the teeth, the aligner (2) being characterized in that at least two referencing features (1b;2b) are located on the aligner (2) in the initial state, said referencing features (1b;2b) being of such a size, preferably about or at least 10 micrometers, that they can be accurately detected by a camera or other means, said referencing features (1b;2b) being of an optical or topographic kind.
The present invention relates to a method of printing a component by means of a 3D printer (1), characterized in that it comprises the steps of: inputting a desired dose distribution in terms of the amount of UV light absorbed as a function of location within the component to be printed into a neural network by means of CAD/CAM software; calculation of the exposure strategy including the exposure data by means of the neural network, which optimally maps the specified desired dose distribution for the component; and printing the component with the calculated exposure data.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
The present invention relates to an intraoral X-ray system (3) comprising: an intraoral X- ray device (2) equipped with an automatic exposure control (AEC) functionality and connectable to a cloud (6) and a computer (4.1), characterized in that at least one intraoral X-ray sensor (1;1`;1`` ) is connectable to the intraoral X-ray device (2), and the intraoral X-ray device (2) comprises a functional switch (2.10) which, in an initial identification process, recognizes the sensor type of the at least one connected intraoral X-ray sensor (1;1`;1`` ), and activates an associated mode (M; M`; M``), wherein the intraoral X-ray system (3) comprises one or more of the following modes (M; M`; M``): a mode (M``) for intraoral X-ray sensor side detection of an exposure level, a mode (M`) for intraoral X-ray device, computer or cloud side detection of an exposure level, a mode (M) without detection of an exposure level.
The present invention relates to a microcapsule (1) for use in the treatment of dental malocclusions/misalignments by means of plastic splints (5) or aligners (5), characterized in that the microcapsule (1) is a few µm, preferably 0.5 µm to 200 µm in size and has a shell (2) made of plastic or glass or ceramic, the shell (2) is filled with a liquid (3) in the interior, and the shell (2) breaks open when it experiences a defined force and releases the liquid (3), which can be detected optically, preferably by a color change or illumination with UV light.
A61C 9/00 - Méthodes de prise d'empreintes spécialement conçues pour les prothèses dentaires; Porte-empreintes à cet effet
G01L 1/24 - Mesure des forces ou des contraintes, en général en mesurant les variations des propriétés optiques du matériau quand il est soumis à une contrainte, p.ex. par l'analyse des contraintes par photo-élasticité
G03F 7/00 - Production par voie photomécanique, p.ex. photolithographique, de surfaces texturées, p.ex. surfaces imprimées; Matériaux à cet effet, p.ex. comportant des photoréserves; Appareillages spécialement adaptés à cet effet
B01J 13/02 - Fabrication de microcapsules ou de microbilles
A61C 19/05 - Instruments de mesure spécialement conçus pour la technique dentaire pour déterminer l'occlusion
The present teachings relate to a method for transforming a digital 3D dental model to a 2D dental image, the method comprising: providing, at least two selected images from the 3D dental model; converting, each of the selected images, to a respective color component of a color model; obtaining, by combining the respective color components, the 2D image in a computer-readable format of the color model. The present teachings also relate to a method of classification of the 2D image, a dental procedure assisting system, uses and computer software products.
A device (1) is for processing a body (4) manufactured by an additive manufacturing method from a liquid substance curable by radiation. The device (1) includes a holder (3) for a build platform (2). The device (1) also includes a separating device (5) for separating a body (4) arranged on a build platform (2) held by the holder (3) from the build platform (2), and a method and use employ the device.
B29C 64/379 - Manutention des objets en 3D obtenus, p.ex. à l’aide de robots
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B26D 1/06 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupant; Appareils ou machines à cet effet; Eléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant linéairement l'élément coupant étant animé d'un mouvement de va-et-vient
The present teachings relate to a method for assisting an intraoral scan comprising: providing an intraoral image of a patient, providing an extraoral image; wherein the extraoral image is representative of the position of an extraoral scanner part, generating, using the intraoral image and the extraoral image, a mapping function correlating the position of the extraoral scanner part with the position of the intraoral scanner part; computing, using the mapping function, a desired extraoral position of the extraoral scanner part; wherein the desired extraoral position corresponds to a preferable intraoral position of the intraoral scanner part. The present teachings also relate to a system, a device, a use, data, and a storage medium.
A61C 9/00 - Méthodes de prise d'empreintes spécialement conçues pour les prothèses dentaires; Porte-empreintes à cet effet
G16H 30/40 - TIC spécialement adaptées au maniement ou au traitement d’images médicales pour le traitement d’images médicales, p.ex. l’édition
G16H 50/50 - TIC spécialement adaptées au diagnostic médical, à la simulation médicale ou à l’extraction de données médicales; TIC spécialement adaptées à la détection, au suivi ou à la modélisation d’épidémies ou de pandémies pour la simulation ou la modélisation des troubles médicaux
A61C 7/00 - Orthodontie, c. à d. obtention ou maintien de la position désirée des dents, p.ex. par redressage, nivellement, ajustement, séparation, ou par correction des malocclusions
A61B 1/24 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments pour la bouche, c. à d. stomatoscopes, p.ex. portant des abaisse-langue; Instruments pour ouvrir la bouche ou la maintenir ouverte
A61B 5/00 - Mesure servant à établir un diagnostic ; Identification des individus
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
A61B 90/00 - Instruments, outillage ou accessoires spécialement adaptés à la chirurgie ou au diagnostic non couverts par l'un des groupes , p.ex. pour le traitement de la luxation ou pour la protection de bords de blessures
43.
X-RAY IMAGING METHOD AND SYSTEM FOR REDUCING OVERLAPPING OF NEIGHBORING TEETH IN PANORAMIC IMAGES
The present invention relates to a computer-implemented x-ray imaging method for generating a panoramic image (1) with reduced overlapping of neighboring teeth (8), comprising: a step of acquiring a plurality of 2D x-ray images (2) respectively at a plurality of different radiographic directions (3) by means of rotating an x-ray source (4) and an x-ray detector (5) around the jaw (6) of a patient; characterized by further comprising: a step of identifying one or more regions (7) each including at least one pair of overlapping neighboring teeth (8) in the 2D x-ray images (2) and/or in temporary panoramic images reconstructed from the 2D x-ray images (2) for which an optimal radiographic directions (3') may be determined, among the corresponding radiographic directions (3), which reduces the overlap in the panoramic image (1) to be reconstructed, and a step of determining one or more optimal radiographic directions (3') respectively among the corresponding radiographic directions (3) of the 2D x-ray images for which one or more regions (7) each including at least one pair of overlapping neighboring teeth (8) has been identified in the identifying step, to reduce the overlaps in the panoramic image (1) to be reconstructed.
A61B 6/14 - Applications ou adaptations à l'art dentaire
A61B 6/00 - Appareils pour diagnostic par radiations, p.ex. combinés avec un équipement de thérapie par radiations
G05B 13/02 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
G06K 9/66 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques utilisant des comparaisons ou corrélations simultanées de signaux images avec une pluralité de références, p.ex. matrice de résistances avec des références réglables par une méthode adaptative, p.ex. en s'instruisant
The present invention relates to a computer-implemented x-ray imaging method for generating a panoramic image (1) with reduced overlapping of neighboring teeth (8), comprising: a step of acquiring a plurality of 2D x-ray images (2) respectively at a plurality of different radiographic directions (3) by means of rotating an x-ray source (4) and an x-ray detector (5) around the jaw (6) of a patient; characterized by further comprising: a step of identifying one or more regions (7) each including at least one pair of overlapping neighboring teeth (8) in the 2D x-ray images (2) and/or in temporary panoramic images reconstructed from the 2D x-ray images (2) for which an optimal radiographic directions (3') may be determined, among the corresponding radiographic directions (3), which reduces the overlap in the panoramic image (1) to be reconstructed, and a step of determining one or more optimal radiographic directions (3') respectively among the corresponding radiographic directions (3) of the 2D x-ray images for which one or more regions (7) each including at least one pair of overlapping neighboring teeth (8) has been identified in the identifying step, to reduce the overlaps in the panoramic image (1) to be reconstructed.
A61B 6/14 - Applications ou adaptations à l'art dentaire
G05B 13/02 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
The present invention, a handheld intraoral dental 3D camera (1) comprising: a hand-held housing (2) which includes: an optical unit (3) comprising: an illuminating means (4) for producing light, and a projecting means (5) for projecting the light produced by the illuminating means (4) onto a region of a tooth surface of a patient; a sensing unit (6) for sensing an image of the projected light reflected by the region, characterized in that the illuminating means (4) comprises a semiconductor laser (7) for producing the light; and the projection means (5) comprises phosphor (8) which is arranged to receive the light produced by the semiconductor laser (7), wherein the projection means (5) is further adapted to project the fluorescing light from the phosphor (8) onto the region of the tooth surface of the patient.
A61B 1/06 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments avec dispositifs d'éclairement
A61B 1/247 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments pour la bouche, c. à d. stomatoscopes, p.ex. portant des abaisse-langue; Instruments pour ouvrir la bouche ou la maintenir ouverte avec des moyens pour visualiser les zones se trouvant en dehors de la ligne de vision directe, p.ex. miroirs de dentiste
A61B 1/04 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments combinés avec des dispositifs photographiques ou de télévision
A61B 1/00 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments
46.
METHOD AND APPARATUS FOR MULTIMODAL SOFT TISSUE DIAGNOSTICS
The present invention relates to a method and device for multimodal imaging of dermal and mucosal lesions, characterized by using at least two imaging modalities from which one is a 3D scan of the lesion, additionally providing information on the distance and angulation between scanning device and the dermis or mucosa and mapping at least the second modality over the 3D data.
A61B 1/24 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments pour la bouche, c. à d. stomatoscopes, p.ex. portant des abaisse-langue; Instruments pour ouvrir la bouche ou la maintenir ouverte
A61B 1/00 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments
A61B 5/00 - Mesure servant à établir un diagnostic ; Identification des individus
The present invention provides a building plate assembly (1) for use in an additive manufacturing apparatus comprising means for additively manufacturing a component (2) through curing photocurable resin, the building plate assembly (1) comprising: a building plate (3) having a front surface (3a) on which said component (2) can be attached during the additive manufacturing; a plurality of through holes (3b) formed between the rear surface (3c) and the front surface (3a) of the building plate (3); characterized by further comprising: a detachment means (4) having one or more projections (4a) which can be relatively moved towards the rear surface (3c) and into the through-holes (3b) to detach the component (2) from the front surface (3a) and, retracted to at least partly clear the through-holes (3b), wherein the through-holes (3b) and the corresponding projections (4a) are arranged in a two-dimensional array.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
The present invention provides a building plate assembly (1) for use in an additive manufacturing apparatus comprising means for additively manufacturing a component (2) through curing photocurable resin, the building plate assembly (1) comprising: a building plate (3) having a front surface (3a) on which said component (2) can be attached during the additive manufacturing; a plurality of through holes (3b) formed between the rear surface (3c) and the front surface (3a) of the building plate (3); characterized by further comprising: a detachment means (4) having one or more projections (4a) which can be relatively moved towards the rear surface (3c) and into the through-holes (3b) to detach the component (2) from the front surface (3a) and, retracted to at least partly clear the through-holes (3b), wherein the through-holes (3b) and the corresponding projections (4a) are arranged in a two-dimensional array.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
The present invention relates to a device (1) for separating a deep-drawn j aw-spanning dental apparatus (2) such as an aligner or a bite splint of thermoform film (3), characterized by comprising: a separating element (4) for thermally separating the deep-drawn thermoform film (3) and simultaneously refining the separated deep-drawn thermoform film (3); a heating means (5) for regulating the heating of the separating element (4) so as to increase the temperature of the thermoform film (3) substantially to at least its glass temperature; a support (6) for supporting the deep-drawn thermoform film (3) relatively movable with respect to the separating element (4); a moving mechanism (7) for moving the separating element (4) along a separation contour (S) of the deep-drawn j aw-spanning dental apparatus (2) relative to the support (6); and a control unit adapted to control the heating means (5) and the moving mechanism (7) based on the separation contour (S).
The present invention relates to a hand tool (1) for separating a deep-drawn j aw-spanning dental apparatus such as an aligner or a bite splint of thermoform film, characterized by comprising: a grip (2) for holding; a separating element (3) for thermally separating the deep-drawn thermoform film and refining the separated deep-drawn thermoform; a heating means adapted to regulate heating of the separating element (3) so as to increase the temperature of the thermoform film substantially to at least its glass temperature; and a power supply means for supplying electric power to the heating means.
The present invention relates to a dental machining system for manufacturing a dental restoration, comprising: a dental tool machine (1) which comprises: a dental blank holder for holding one or more dental blanks (2) relatively movable with respect to one or more dental tools (3); one or more driving units (4) each for movably holding at least one dental tool (3) for machining the dental blanks (2); a determination unit for determining the type of each dental blank (2); an adjustment means for allowing the user to adjust the machining time, a level of quality of the dental restoration, and a level of security of the dental restoration and dental tool (3) against machining damage; characterized by further comprising: a control unit which is further adapted to execute a trained artificial intelligence algorithm adapted to generate process parameters for the machining based on the type of the dental blank (2), the machining time, the level of quality of the dental restoration, and the level of security of the dental restoration and dental tool (3) against machining damage, to calculate the temporal trajectory of the dental tool (3) for the machining based on construction data of the dental restoration and the generated process parameters, and to control the dental blank holder and the driving units (4) based on the calculated temporal trajectory.
The present invention relates to a dental machining system for manufacturing a dental restoration, comprising: a dental tool machine (1) which comprises: a dental blank holder for holding one or more dental blanks (2) relatively movable with respect to one or more dental tools (3); one or more driving units (4) each for movably holding at least one dental tool (3) for machining the dental blanks (2); a determination unit for determining the type of each dental blank (2); an adjustment means for allowing the user to adjust the machining time, a level of quality of the dental restoration, and a level of security of the dental restoration and dental tool (3) against machining damage; characterized by further comprising: a control unit which is further adapted to execute a trained artificial intelligence algorithm adapted to generate process parameters for the machining based on the type of the dental blank (2), the machining time, the level of quality of the dental restoration, and the level of security of the dental restoration and dental tool (3) against machining damage, to calculate the temporal trajectory of the dental tool (3) for the machining based on construction data of the dental restoration and the generated process parameters, and to control the dental blank holder and the driving units (4) based on the calculated temporal trajectory.
The present invention relates to a dental machining system for manufacturing a dental restoration/appliance, comprising: a dental tool machine (1) which comprises: a dental blank holder for movably holding at least one dental blank (2) relative to one or more dental tools (3); one or more driving units (4) each for movably holding one or more dental tools (3), a control unit for controlling the dental blank holder and the driving units (4) based on construction data of the dental restoration/appliance and a plurality of machining processes specific for the manufacturing of the dental restoration/ appliance from the dental blank (2); characterized in that the control unit is further adapted to execute a trained artificial intelligence algorithm adapted to predict the machining time for manufacturing the dental restoration/appliance based on input data comprising: process parameters defining the machining processes respectively; and mappings which include information on the target geometry of the dental restoration/appliance, which are constructed based on the said machining processes respectively.
The present invention relates to a dental machining system for manufacturing a dental restoration/appliance, comprising: a dental tool machine (1) which comprises: a dental blank holder for movably holding at least one dental blank (2) relative to one or more dental tools (3); one or more driving units (4) each for movably holding one or more dental tools (3), a control unit for controlling the dental blank holder and the driving units (4) based on construction data of the dental restoration/appliance and a plurality of machining processes specific for the manufacturing of the dental restoration/ appliance from the dental blank (2); characterized in that the control unit is further adapted to execute a trained artificial intelligence algorithm adapted to predict the machining time for manufacturing the dental restoration/appliance based on input data comprising: process parameters defining the machining processes respectively; and mappings which include information on the target geometry of the dental restoration/appliance, which are constructed based on the said machining processes respectively.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
G05B 13/02 - Systèmes de commande adaptatifs, c. à d. systèmes se réglant eux-mêmes automatiquement pour obtenir un rendement optimal suivant un critère prédéterminé électriques
A61C 5/77 - Procédés ou dispositifs pour la fabrication des couronnes dentaires
55.
SENSOR HOLDER AND METHOD FOR OPTIMUM POSITIONING DURING INTRAORAL IMAGING
The present invention relates to a computer-implemented method for determining the optimum relative position of at least one sensor and/or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The present invention also relates to a sensor holder (1) for intraoral imaging comprising at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering means (4) for aligning at least one imaging device, wherein the centering means (4) is at least indirectly in operative connection with the biting device (2) via at least one centering means holding portion (5), characterized in that the centering means holding portion (5) is so designed that positioning of the holding device (3) with respect to the centering means (4) is continuously variable in angle and/or distance, as well as methods for optimizing and performing intraoral imaging.
The present invention relates to a computer-implemented method for determining the optimum relative position of at least one sensor and/or at least one imaging source of an imaging device for at least one intraoral imaging, and for the non-overlapping imaging of at least two tooth root canals. The present invention also relates to a sensor holder (1) for intraoral imaging comprising at least one biting device (2) that is insertable into the mouth of a patient, at least one holding device (3) at least indirectly engaged with the biting device (2) for fixing at least one sensor, and at least one centering means (4) for aligning at least one imaging device, wherein the centering means (4) is at least indirectly in operative connection with the biting device (2) via at least one centering means holding portion (5), characterized in that the centering means holding portion (5) is so designed that positioning of the holding device (3) with respect to the centering means (4) is continuously variable in angle and/or distance, as well as methods for optimizing and performing intraoral imaging.
The invention relates to a 3D X-ray device (1) comprising an X-ray detector (2), an X- ray source (3) and a computer (4), wherein the X-ray detector (2) and the X-ray source (3) are moved about an object volume (6) to be recorded on movement paths (5, 7) with a rotation of at least 185°, wherein a plurality of X-ray projection images are recorded from different irradiation directions (8), whereby X-rays (9), which are produced by means of the X-ray source (3), irradiate the object volume (6) in one of the irradiation directions (8) and are captured by the X-ray detector (2), wherein a 3D X-ray image (10) of the object volume (6) is calculated from the recorded X-ray projection images by means of a reconstruction method. The X-ray detector (2) is arranged asymmetrically relative to a central axis (12) through a center of rotation (13) of the 3D X-ray device (1), wherein a first fan beam (14) and an opposite second fan beam (17) rotated 180° form an overlap region (18), wherein at least one X-ray filter (21) is disposed between the X-ray source (3) and the object volume (6) for attenuating an X-ray dose inside the overlap region (18).
A61B 6/00 - Appareils pour diagnostic par radiations, p.ex. combinés avec un équipement de thérapie par radiations
G21K 1/02 - Dispositions pour manipuler des particules ou des rayonnements ionisants, p.ex. pour focaliser ou pour modérer utilisant des diaphragmes, des collimateurs
A post-exposure unit (1) for post-exposure of a body (2) manufactured by means of an additive manufacturing method from a substance curable by radiation, the post-exposure unit (1) comprising at least one radiation source (7) configured for post-exposure, the post-exposure unit (1) comprising at least one radiation sensor (8), the radiation sensor (8) being configured to capture radiation emitted by the radiation source (7), wherein the post-exposure unit has a receiving space for receiving a body to be post-exposed, wherein the radiation sensor is configured to capture radiation emitted by the radiation source and traversed at least a part of the receiving space at least once.
A system (1) and method for cleaning and/or post-exposure of a body (2) manufactured by means of an additive manufacturing method from a substance curable by radiation, the system (1) comprising a cleaning tank (13) for cleaning the body (2) and/or an exposure chamber for post-exposure of the body (2), the system (1) further comprising a transport device (4) having a drive (17) for moving a build platform (3) relative to the cleaning tank (13) and/or to the exposure chamber, the transport device (4) comprises a force sensor (18), the force sensor (18) being configured to capture a force acting on the build platform (3) and provide a force signal, and being connected to a processing unit (19) for controlling the drive (17) and/or for outputting process parameters based on the force signal; and, as part of the method, the body (2) on a build platform (3) being moved relative to the cleaning tank (13) and/or to the exposure chamber by a transport device (4) comprising a drive (17), and during and/or after the cleaning and/or post-exposure, a force acting on the build platform (3) being captured using a force sensor (18) providing a force signal and a processing unit (19) connected to the force sensor (18) controlling the drive (17) and/or outputting a process parameter on the basis of the force signal.
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 40/20 - Posttraitement, p.ex. durcissement, revêtement ou polissage
B08B 3/10 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p.ex. par la chaleur, par l'électricité ou par des vibrations
B29C 71/00 - Post-traitement d'objets sans modification de leur forme; Appareils à cet effet
A system (1) and method for cleaning and/or post-exposure of a body (2) manufactured by means of an additive manufacturing method from a substance curable by radiation, the system (1) comprising a cleaning tank (13) for cleaning the body (2) and/or an exposure chamber for post-exposure of the body (2), the system (1) further comprising a transport device (4) having a drive (17) for moving a build platform (3) relative to the cleaning tank (13) and/or to the exposure chamber, the transport device (4) comprises a force sensor (18), the force sensor (18) being configured to capture a force acting on the build platform (3) and provide a force signal, and being connected to a processing unit (19) for controlling the drive (17) and/or for outputting process parameters based on the force signal; and, as part of the method, the body (2) on a build platform (3) being moved relative to the cleaning tank (13) and/or to the exposure chamber by a transport device (4) comprising a drive (17), and during and/or after the cleaning and/or post-exposure, a force acting on the build platform (3) being captured using a force sensor (18) providing a force signal and a processing unit (19) connected to the force sensor (18) controlling the drive (17) and/or outputting a process parameter on the basis of the force signal.
B08B 3/10 - Nettoyage impliquant le contact avec un liquide avec traitement supplémentaire du liquide ou de l'objet en cours de nettoyage, p.ex. par la chaleur, par l'électricité ou par des vibrations
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
A device (1) for processing a body (4) manufactured by means of an additive manufacturing method from a liquid substance curable by radiation, the device (1) comprising a holder (3) for a build platform (2), the device (1) comprising a separating device (5) for separating a body (4) arranged on a build platform (2) held by the holder (3) from the build platform (2), and a method and use of a device.
B29C 64/30 - Opérations ou équipements auxiliaires
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 40/20 - Posttraitement, p.ex. durcissement, revêtement ou polissage
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/379 - Manutention des objets en 3D obtenus, p.ex. à l’aide de robots
B26D 1/08 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupant; Appareils ou machines à cet effet; Eléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant linéairement l'élément coupant étant animé d'un mouvement de va-et-vient du genre guillotine
A post-exposure unit (1) for post-exposure of a body (2) manufactured by means of an additive manufacturing method from a substance curable by radiation, the post-exposure unit (1) comprising at least one radiation source (7) configured for post-exposure, the post-exposure unit (1) comprising at least one radiation sensor (8), the radiation sensor (8) being configured to capture radiation emitted by the radiation source (7), wherein the post-exposure unit has a receiving space for receiving a body to be post-exposed, wherein the radiation sensor is configured to capture radiation emitted by the radiation source and traversed at least a part of the receiving space at least once.
The present invention relates to a dental machining system for manufacturing a dental restoration comprising: a dental tool machine (1) which comprises: a dental blank holder for holding at least one dental blank (2) relatively movably with respect to one or more dental tools (3); one or more driving units (4) each for movably holding at least one dental tool (3) for machining the dental blank (2), a control unit for controlling the dental blank holder and the driving units (4) based at least on a temporal trajectory of the dental tool (3) relative to the dental blank (2) and a spatial amount of material removal from the dental blank (2) along the temporal trajectory; characterized in that the control unit is further adapted to execute a primary trained artificial intelligence algorithm adapted to predict dynamical quantities based on the temporal trajectory and, the spatial amount of material removal, wherein the dynamical quantities correspond to one or more physically measurable quantities which relate to the respective dental tool (3) along the temporal trajectory; a secondary trained artificial intelligence algorithm adapted to predict the wear condition of the dental tool (3) based on the predicted dynamical quantities.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
B23Q 17/09 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la pression de coupe ou l'état de l'outil de coupe, p.ex. aptitude à la coupe, charge sur l'outil
G05B 19/4065 - Contrôle du bris, de la vie ou de l'état d'un outil
64.
DENTAL MACHINING SYSTEM FOR PREDICTING THE WEAR CONDITION OF A DENTAL TOOL
The present invention relates to a dental machining system for manufacturing a dental restoration comprising: a dental tool machine (1) which comprises: a dental blank holder for holding at least one dental blank (2) relatively movably with respect to one or more dental tools (3); one or more driving units (4) each for movably holding at least one dental tool (3) for machining the dental blank (2), a control unit for controlling the dental blank holder and the driving units (4) based at least on a temporal trajectory of the dental tool (3) relative to the dental blank (2) and a spatial amount of material removal from the dental blank (2) along the temporal trajectory; characterized in that the control unit is further adapted to execute a primary trained artificial intelligence algorithm adapted to predict dynamical quantities based on the temporal trajectory and, the spatial amount of material removal, wherein the dynamical quantities correspond to one or more physically measurable quantities which relate to the respective dental tool (3) along the temporal trajectory; a secondary trained artificial intelligence algorithm adapted to predict the wear condition of the dental tool (3) based on the predicted dynamical quantities.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
G05B 19/4065 - Contrôle du bris, de la vie ou de l'état d'un outil
B23Q 17/09 - Agencements sur les machines-outils pour indiquer ou mesurer pour indiquer ou mesurer la pression de coupe ou l'état de l'outil de coupe, p.ex. aptitude à la coupe, charge sur l'outil
65.
METHOD OF IDENTIFYING DENTAL CONSUMABLES EQUIPPED INTO A DENTAL TOOL MACHINE
The present invention relates to a method of identifying dental consumables including at least one of a dental blank (2) and a dental tool (3) equipped into a dental tool machine (1), the method comprising: a step of colliding the dental tool (3) with the dental blank (2) or a dental blank holder of the dental tool machine (1); a step of detecting a signal indicative of the collision, characterized by further comprising: a step of analyzing the detected signal through trained artificial intelligence; and a step of identifying the type and/or condition of at least one of the dental consumables based on the analysis.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
G05B 19/401 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par des dispositions de commande pour la mesure, p.ex. étalonnage et initialisation, mesure de la pièce à usiner à des fins d'usinage
66.
METHOD OF IDENTIFYING DENTAL CONSUMABLES EQUIPPED INTO A DENTAL TOOL MACHINE
The present invention relates to a method of identifying dental consumables including at least one of a dental blank (2) and a dental tool (3) equipped into a dental tool machine (1), the method comprising: a step of colliding the dental tool (3) with the dental blank (2) or a dental blank holder of the dental tool machine (1); a step of detecting a signal indicative of the collision, characterized by further comprising: a step of analyzing the detected signal through trained artificial intelligence; and a step of identifying the type and/or condition of at least one of the dental consumables based on the analysis.
G05B 19/401 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par des dispositions de commande pour la mesure, p.ex. étalonnage et initialisation, mesure de la pièce à usiner à des fins d'usinage
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
67.
METHOD OF MACHINING A DENTAL BLOCK FOR MANUFACTURING A DENTAL RESTORATION
The present invention relates to a method of machining a dental block (2) by using at least one dental tool (4) to finish or pre-finish a dental restoration (5) at least completely along the equator (5a) with or without a holding stub (5b), the method characterized by comprising: a step of moving the axis (4a) of the dental tool (4) along a path (6) with an overlaid lateral motion having an amplitude (A), and without separating an unmachined piece (2´) from the rest of the dental block (2), wherein the path (6) lies away from the equator (5a) at least by an amount equal to half of the diameter of the dental tool (4) plus half of the amplitude (A) of the overlaid lateral motion.
B23Q 3/16 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine à commande liée au travail de l'outil
B23Q 15/00 - Commande automatique ou régulation du mouvement d'avance, de la vitesse de coupe ou de la position tant de l'outil que de la pièce
G05B 19/4093 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par la programmation de pièce, p.ex. introduction d'une information géométrique dérivée d'un dessin technique, combinaison de cette information avec l'information d'usinage et de matériau pour obtenir une information de commande, appelée
68.
METHOD OF MACHINING A DENTAL BLOCK FOR MANUFACTURING A DENTAL RESTORATION
The present invention relates to a method of machining a dental block (2) by using at least one dental tool (4) to finish or pre-finish a dental restoration (5) at least completely along the equator (5a) with or without a holding stub (5b), the method characterized by comprising: a step of moving the axis (4a) of the dental tool (4) along a path (6) with an overlaid lateral motion having an amplitude (A), and without separating an unmachined piece (2´) from the rest of the dental block (2), wherein the path (6) lies away from the equator (5a) at least by an amount equal to half of the diameter of the dental tool (4) plus half of the amplitude (A) of the overlaid lateral motion.
A61C 5/77 - Procédés ou dispositifs pour la fabrication des couronnes dentaires
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
B23Q 3/16 - Dispositifs permettant de maintenir, supporter ou positionner les pièces ou les outils, ces dispositifs pouvant normalement être démontés de la machine à commande liée au travail de l'outil
B23Q 15/00 - Commande automatique ou régulation du mouvement d'avance, de la vitesse de coupe ou de la position tant de l'outil que de la pièce
G05B 19/4093 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par la programmation de pièce, p.ex. introduction d'une information géométrique dérivée d'un dessin technique, combinaison de cette information avec l'information d'usinage et de matériau pour obtenir une information de commande, appelée
69.
METHOD OF MACHINING A DENTAL RESTORATION WITH REDUCED CONTOUR FALSIFICATION
The present invention relates to a method of machining at least one dental restoration (1) from a workpiece (2) using one or more dental tools (3), comprising: a step of defining a target contour (4) of the dental restoration (1); characterized by further comprising: a step of predicting the deflection of the dental tool (3) during pre-machining through a model based on one or more machining parameters; a step of determining based on the prediction step one or more primary locations (5) at which the target contour (4) would have been damaged during pre-machining; a step of modifying the target contour (4) or the corresponding machining path by adding an oversize of material (6) substantially only at the primary locations (5) for preventing damage; and a step of pre-machining the workpiece (2) based on the modified target contour (7) or the corresponding modified machining path.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
G05B 19/404 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par des dispositions de commande pour la compensation, p.ex. pour le jeu, le dépassement, le décalage d'outil, l'usure d'outil, la température, les erreurs de construction de la machine, la charge, l'inertie
The present invention relates to a method of manufacturing a dental restoration, the method comprising: a construction step (S2) of preparing through a construction means construction data for a dental tool machine for machining the dental restoration from a workpiece, wherein the construction data defines at least the geometry of the dental restoration within the workpiece; and a starting step (S3) of starting machining of the dental restoration from the workpiece in accordance with the construction data; characterized by further comprising: a preparing step (S4) of starting preparing, before termination of the construction step (S2), the dental tool machine at least through equipping it with all the consumables essential for starting the starting step (S3), and completing preparing the dental tool machine before start of the starting step (S3).
The present invention relates to a dental tool (1) for use in a dental CNC milling/grinding machine for machining a dental restoration from a workpiece (6), the dental tool (1) comprising: a shaft (2); characterized by further comprising: a miniaturized RFID tag (3) which is arranged in front of the back end (2a) of the shaft (2). The present invention also relates to a dental CNC milling/grinding machine (5) characterized by comprising: a machine compartment (5a) including one or more carriage units (5b) each adapted to exchangeably receive and drive one or more dental tools (1) for machining a dental restoration from a workpiece (6); one or more transceiver units (5c) each adapted to read and/or write the miniaturized RFID tag (3) of a dental tool (1); and a control unit adapted to control the transceiver units (5c), and the carriage units (5b) based on the information read from the miniaturized RFID tags (3).
The present invention relates to a method of machining at least one dental restoration (1) from a workpiece (2) using one or more dental tools (3), comprising: a step of defining a target contour (4) of the dental restoration (1); characterized by further comprising: a step of predicting the deflection of the dental tool (3) during pre-machining through a model based on one or more machining parameters; a step of determining based on the prediction step one or more primary locations (5) at which the target contour (4) would have been damaged during pre-machining; a step of modifying the target contour (4) or the corresponding machining path by adding an oversize of material (6) substantially only at the primary locations (5) for preventing damage; and a step of pre-machining the workpiece (2) based on the modified target contour (7) or the corresponding modified machining path.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
G05B 19/404 - Commande numérique (CN), c.à d. machines fonctionnant automatiquement, en particulier machines-outils, p.ex. dans un milieu de fabrication industriel, afin d'effectuer un positionnement, un mouvement ou des actions coordonnées au moyen de données d'u caractérisée par des dispositions de commande pour la compensation, p.ex. pour le jeu, le dépassement, le décalage d'outil, l'usure d'outil, la température, les erreurs de construction de la machine, la charge, l'inertie
The present invention relates to a method of manufacturing a dental restoration, the method comprising: a construction step (S2) of preparing through a construction means construction data for a dental tool machine for machining the dental restoration from a workpiece, wherein the construction data defines at least the geometry of the dental restoration within the workpiece; and a starting step (S3) of starting machining of the dental restoration from the workpiece in accordance with the construction data; characterized by further comprising: a preparing step (S4) of starting preparing, before termination of the construction step (S2), the dental tool machine at least through equipping it with all the consumables essential for starting the starting step (S3), and completing preparing the dental tool machine before start of the starting step (S3).
The present invention relates to a dental tool (1) for use in a dental CNC milling/grinding machine for machining a dental restoration from a workpiece (6), the dental tool (1) comprising: a shaft (2); characterized by further comprising: a miniaturized RFID tag (3) which is arranged in front of the back end (2a) of the shaft (2). The present invention also relates to a dental CNC milling/grinding machine (5) characterized by comprising: a machine compartment (5a) including one or more carriage units (5b) each adapted to exchangeably receive and drive one or more dental tools (1) for machining a dental restoration from a workpiece (6); one or more transceiver units (5c) each adapted to read and/or write the miniaturized RFID tag (3) of a dental tool (1); and a control unit adapted to control the transceiver units (5c), and the carriage units (5b) based on the information read from the miniaturized RFID tags (3).
The present invention provides a computer-implemented method of planning of the shapes of free-form tool paths (P) for simultaneous two-sided machining of a dental restoration (1) having an individual free-form target geometry from a workpiece (2) by using a dental tool machine (3) comprising at least two tool spindles each having at least one tool (4) arranged on a different side of the workpiece (2) which is simultaneously movable along an axis (y) relative to the tools (4) and thereby imposing a kinematic axis coupling, characterized by further comprising: a step of determining transformations (T´, T´´) of the target geometry by which the kinematic axis coupling is converted into a common coupling parameter for both tools (4); and a step of generating dependent on these transformations (T´, T´´) the shapes of the free-form tool paths (P) in which the common coupling parameter is identical in time for all participating tool spindles that are driven simultaneously.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
B23Q 39/02 - Machines pour le travail des métaux incorporant un grand nombre de sous-ensembles capables chacun de réaliser une opération de travail du métal les sous-ensembles étant susceptibles d'être mis en fonctionnement à un seul poste de travail
B24B 27/00 - Autres machines ou dispositifs à meuler
The present invention relates to a dental tool (1) for use in a dental tool machine for machining a dental restoration from a workpiece, the dental tool (1) comprising: a shaft (2); characterized by further comprising: a miniaturized RFID tag (3) which is arranged in front of the back end (2a) of the shaft (2). The present invention also relates to a dental tool machine characterized by comprising: one or more carriage units each adapted to exchangeably receive and drive one or more dental tools (1); one or more transceiver units each adapted to read and/or write the miniaturized RFID tag (3) of a dental tool (1); and a control unit adapted to control the transceiver units, and the carriage units based on the information read from the miniaturized RFID tags (3).
The present invention provides a computer-implemented method of planning of the shapes of free-form tool paths (P) for simultaneous two-sided machining of a dental restoration (1) having an individual free-form target geometry from a workpiece (2) by using a dental tool machine (3) comprising at least two tool spindles each having at least one tool (4) arranged on a different side of the workpiece (2) which is simultaneously movable along an axis (y) relative to the tools (4) and thereby imposing a kinematic axis coupling, characterized by further comprising: a step of determining transformations (T´, T´´) of the target geometry by which the kinematic axis coupling is converted into a common coupling parameter for both tools (4); and a step of generating dependent on these transformations (T´, T´´) the shapes of the free-form tool paths (P) in which the common coupling parameter is identical in time for all participating tool spindles that are driven simultaneously.
A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
B23Q 39/02 - Machines pour le travail des métaux incorporant un grand nombre de sous-ensembles capables chacun de réaliser une opération de travail du métal les sous-ensembles étant susceptibles d'être mis en fonctionnement à un seul poste de travail
B24B 27/00 - Autres machines ou dispositifs à meuler
78.
IMPOSING QUALITY REQUIREMENTS ON 3D MODELS WITH SUPPORT STRUCTURES
The present invention relates to a method of imposing quality requirements on a 3D model (1) including support structures (2) to be built by an additive manufacturing apparatus comprising: a platform (3) for holding the 3D object corresponding to the 3D model (1), the method comprising: a step of defining the surface geometry and the orientation of the 3D model (1) with respect to the platform (3), wherein the surface geometry includes surface segments; characterized by further comprising: a step of attributing a degree of quality (L;H) to the surface segments respectively against post-processing for the subsequent removal of the support structures (2); a step of calculating, based on the defined orientation, the surface geometry and the degree of quality (L;H) attributed, the positions on the surface segments where the support structure (2) may be added; and a step of adding the support structure (2) to the 3D model (1) based on the calculated positions and the degree of quality (L;H) attributed.
B29C 64/386 - Acquisition ou traitement de données pour la fabrication additive
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
79.
IMPOSING QUALITY REQUIREMENTS ON 3D MODELS WITH SUPPORT STRUCTURES
The present invention relates to a method of imposing quality requirements on a 3D model (1) including support structures (2) to be built by an additive manufacturing apparatus comprising: a platform (3) for holding the 3D object corresponding to the 3D model (1), the method comprising: a step of defining the surface geometry and the orientation of the 3D model (1) with respect to the platform (3), wherein the surface geometry includes surface segments; characterized by further comprising: a step of attributing a degree of quality (L;H) to the surface segments respectively against post-processing for the subsequent removal of the support structures (2); a step of calculating, based on the defined orientation, the surface geometry and the degree of quality (L;H) attributed, the positions on the surface segments where the support structure (2) may be added; and a step of adding the support structure (2) to the 3D model (1) based on the calculated positions and the degree of quality (L;H) attributed.
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/40 - Structures de support des objets en 3D pendant la fabrication, lesdites structures devant être sacrifiées après réalisation de la fabrication
B41J 2/01 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par la mise en contact sélective d'un liquide ou de particules avec un matériau d'impression à jet d'encre
80.
METHOD OF DETERMINING THE ORIENTATION OF A THREE-DIMENSIONAL MODEL FOR ADDITIVE MANUFACTURING
The present invention relates to a method of determining the orientation of a 3D Model (1) to be generated by an additive manufacturing apparatus comprising: a vat for holding photocurable material; and a platform for holding the 3D object corresponding to the 3D model (1), wherein the platform is relatively movable with respect to the vat, the method comprising: a step of defining the surface geometry of the 3D model (1), wherein the surface geometry includes a plurality of surface segments s i , wherein i denotes an integer, and A i denotes the surface area of the i th surface segment s i ; characterized by further comprising: a step of assigning, either manually by the user or automatically by a computer program, one or more weighing factors f i to the surface segments s i , respectively, wherein the weighing factor f i is indicative of a degree of sensitivity of each of the surface segments s i , against effects arising from mechanical removal of any support structure thereon, wherein the weighing factor f i is larger than 1 for surface segments s i, which are considered as being sensitive, and for all other surface segments s i, f i , is equal to 1; a step of defining an evaluation function R ( T,f) = - ( I ), wherein T and f respectively denote the polar and the azimuth angles of the 3D model orientation relative to the building direction, P supp,i denotes a probability indicative of the need of the individual surface segments s i to be supported through a support structure, and the summations denoted with S extend over all surface segments s i ; and a step of determining the orientation of the 3D model (1) relative to the platform based on the evaluation function R through optimization with respect to the polar and the azimuth angles respectively in order to avoid or reduce as much as possible support structures in sensitive surface segments of the 3D model.
sii iAii ithth sii fii sii fii sii fii si,i, si, i, fii RΘ,φΘφPsupp,isupp,i sii sii i ; and a step of determining the orientation of the 3D model (1) relative to the platform based on the evaluation function R through optimization with respect to the polar and the azimuth angles respectively in order to avoid or reduce as much as possible support structures in sensitive surface segments of the 3D model.
G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p.ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle
B33Y 50/00 - Acquisition ou traitement de données pour la fabrication additive
G06F 113/10 - Fabrication additive, p.ex. impression en 3D
G06F 119/18 - Analyse de fabricabilité ou optimisation de fabricabilité
82.
MEASUREMENT AND DATA COMMUNICATION DEVICE FOR AN INTRAORAL DENTAL RADIOLOGY SYSTEM
The present invention relates to a measurement and data communication device (10) for use in or with an intraoral dental radiology system (100) comprising: an x-ray data management unit (20) having a first communication means (21) for retrieving at least x-ray exposure data, and a processing means (22) for processing at least the retrieved data; an intraoral x-ray generation unit (30) having an x-ray source (31) for exposing at least part of a patient jaw with x-rays; and an intraoral x-ray acquisition unit (40) having a first x-ray sensor (41) for acquiring x-ray image data of at least part of the patient jaw; said device (10) characterized by comprising: a measurement unit (11) for measuring features related to the x-rays used for exposing at least part of the patient, wherein the measurement unit (11) is arranged between the x-ray source (31) and the patient; and a second communication means (12) for transmitting the x-ray exposure data which includes the measured features to the x-ray data management unit (20).
The present invention relates to a method of determining layer thicknesses (t) of a three- dimensional model (1) for generation with an additive manufacturing apparatus, the method comprising: a step of determining the layer thicknesses (t) according to an adaptive slicing algorithm in which the thickness of a layer (2) is calculated through a relation based on the inclination of the normal vectors (n) of the surface elements (s) of the 3D model (1) which at least partly enclose the layer (2) from a horizontal direction (x;y), the method being characterized by further comprising: a step of selectively imposing on at least one surface element (s) of the 3D model (1) a precision requirement out of one or more selectable different precision requirements which respectively differently alter in the determination step the relation with respect to the inclination of the normal vector (n) of the said at least one surface element (s) which allows, through the altered relation, the layer thickness (t) to obtain a value smaller or larger than the layer thickness (t) determined through the unaltered relation.
The present invention relates to a method of determining layer thicknesses (t) of a three- dimensional model (1) for generation with an additive manufacturing apparatus, the method comprising: a step of determining the layer thicknesses (t) according to an adaptive slicing algorithm in which the thickness of a layer (2) is calculated through a relation based on the inclination of the normal vectors (n) of the surface elements (s) of the 3D model (1) which at least partly enclose the layer (2) from a horizontal direction (x;y), the method being characterized by further comprising: a step of selectively imposing on at least one surface element (s) of the 3D model (1) a precision requirement out of one or more selectable different precision requirements which respectively differently alter in the determination step the relation with respect to the inclination of the normal vector (n) of the said at least one surface element (s) which allows, through the altered relation, the layer thickness (t) to obtain a value smaller or larger than the layer thickness (t) determined through the unaltered relation.
The present invention relates to a method of operating a stepper motor for use in a dental tool machine (1) for removing material from a dental blank (2), the method comprising: a step of adapting torque reserves of the stepper motor at operating points to net load moments (M_net) respectively, characterized by further comprising: a first step (S1) of predicting, through simulation, the net load moments (M_net) beforehand; a second step (S2) of predicting, through simulation, the supply current (I_tr) to be supplied to the stepper motor for setting up the torque reserves that correspond to the predicted net load moments (M_net) respectively; and a step (S3) of driving the stepper motor based on the predicted supply current (I_tr).
The present invention relates to a method of operating a stepper motor for use in a dental tool machine (1) for removing material from a dental blank (2), the method comprising: a step of adapting torque reserves of the stepper motor at operating points to net load moments (M_net) respectively, characterized by further comprising: a first step (S1) of predicting, through simulation, the net load moments (M_net) beforehand; a second step (S2) of predicting, through simulation, the supply current (I_tr) to be supplied to the stepper motor for setting up the torque reserves that correspond to the predicted net load moments (M_net) respectively; and a step (S3) of driving the stepper motor based on the predicted supply current (I_tr).
The present invention relates to an intra-oral bite device for use with an x-ray recording apparatus for recording the image of at least one oral area of a patient, located by the intra-oral bite device.
The present invention relates to an illuminating instrument (1) for diagnostics, therapy or surgery of a body part, comprising: at least one optical fiber (4) for transmitting electromagnetic radiation directly from an electromagnetic radiation source (3) to the body part; and a housing (5) which supports the optical fiber (4); the optical axis of the light- output end of the optical fiber (4) circumferentially extends in an illumination portion (52a) in the housing (5) which is annular shaped and arranged to face the body part; the optical fiber (4) in the illumination portion (52a) has one or more diffusing regions (4a) for diffusing the electromagnetic radiation to the outside of the optical fiber (4) through the circumferential surface (4b) thereof, a coupling device (2) which supports the electromagnetic radiation source (3) for generating the electromagnetic radiation, characterized by further comprising: a conversion means (6) which is supported by the housing (5) without directly contacting the electromagnetic radiation source (3), and arranged between the diffusing regions (4a) and the body part for converting the electromagnetic radiation into visible light for illuminating the body part, and wherein the light-entrance end of the optical fiber (4) is directly optically connected with the electromagnetic radiation source (3), wherein the conversion means (6) is outside an optical interface between the light-entrance end of the optical fiber (4) and the electromagnetic radiation source (3).
A61C 1/08 - Eléments de machines spécialement adaptés à la chirurgie dentaire
A61B 1/06 - Instruments pour procéder à l'examen médical de l'intérieur des cavités ou des conduits du corps par inspection visuelle ou photographique, p.ex. endoscopes; Dispositions pour l'éclairage dans ces instruments avec dispositifs d'éclairement
The present invention relates to an endodontic file clip (1) for an apex locator, comprising: a hollow body (2); a push button (3) movably linked to the body (2); a spring (4) pushing the push button (3) away from the body (2); an electrically conductive hook (5) movably arranged within the body (2) and partly protruding out of the tip (2a) of the body (2) and fixed to the push button (3) to securely attach an endodontic file (6) to the tip (2a) when the push button (3) is released towards the closed position, and disengage from the endodontic file (6) when the push button (3) is pressed towards the open position; characterized by further comprising: a detachment mechanism (7) for re-attachably detaching the push button (3), the spring (4) and the hook (5) from the body (2) for cleaning and disinfection in a dental washer disinfector, wherein the detachment mechanism (7) comprises a detachment slot (2c;2c´) in the body (2) which extends up to the tip (2a) and joins said hole, to allow manual detachment of the push button (3), the spring (4) and the hook (5) from the body (2) when the hook (5) is manually moved from said hole into the detachment slot (2c, 2c´).
The present invention relates to an endodontic file clip (1) for an apex locator, comprising: a hollow body (2); a push button (3) movably linked to the body (2); a spring (4) pushing the push button (3) away from the body (2); an electrically conductive hook (5) movably arranged within the body (2) and partly protruding out of the tip (2a) of the body (2) and fixed to the push button (3) to securely attach an endodontic file (6) to the tip (2a) when the push button (3) is released towards the closed position, and disengage from the endodontic file (6) when the push button (3) is pressed towards the open position; characterized by further comprising: a detachment mechanism (7) for re-attachably detaching the push button (3), the spring (4) and the hook (5) from the body (2) for cleaning and disinfection in a dental washer disinfector, wherein the detachment mechanism (7) comprises a detachment slot (2c;2c´) in the body (2) which extends up to the tip (2a) and joins said hole, to allow manual detachment of the push button (3), the spring (4) and the hook (5) from the body (2) when the hook (5) is manually moved from said hole into the detachment slot (2c, 2c´).
The invention relates to a device and a method for generating a panoramic layer image (1, 2) of an object (3) to be imaged, by employing a 2D panoramic X-ray device, wherein the object is imaged by projecting X-rays (6) generated by an X-ray source (7) through the object (3) in a projection direction (8) and recording said X-rays (6) with an X-ray detector (9), wherein several 2D X-ray projection images are continuously recorded from various imaging directions while the X-ray source (7) and the X-ray detector (9) move around the object (3), wherein at least one panoramic layer image (1, 2) is calculated from the recorded 2D X-ray projection images by means of a reconstruction method. The panoramic layer image (2) is calculated by selecting and employing at least one partial area (50, 52, 55, 57, 65) from at least two 2D X-ray projection images (51) in relation to an active sensor area (73).
The present invention relates to an apparatus (20) for real-time visualizing a movement of a lower jaw (12) versus an upper jaw (14) in a craniomaxillofacial area (16) of a patient (18) in dental diagnostics, comprising: an input interface (32) for receiving a two-dimensional image signal (26) of the craniomaxillofacial area of the patient from a camera (40) and a three-dimensional jaw model (28) of the craniomaxillofacial area of the patient being precalculated based on volume data; a registration unit (34) for registering the three-dimensional jaw model with the two-dimensional image signal in a first jaw position of the lower jaw versus the upper jaw and in a second jaw position of the lower jaw versus the upper jaw; an imaging unit (36) for generating a two-dimensional depth-view (30) of the craniomaxillofacial area from the three-dimensional jaw model based on the conducted registrations and the two-dimensional image signal, said two-dimensional depth-view including a structure underlying an image area of the two-dimensional image signal; and an output interface (38) for outputting the two-dimensional depth-view. The present invention further relates to a system (10) and method for real-time visualizing a movement of a lower jaw (12) versus an upper jaw (14) in a craniomaxillofacial area (16) of a patient (18) in dental diagnostics.
The resent invention relates to a method of x-ray projection geometry calibration in x-ray cone beam computed tomography, the method comprising: at least one step (S1) of obtaining two-dimensional x-ray images (1) or a sinogram (2) of at least a part of an object (3), generated through relatively rotating around the object (3) a detector and an x-ray source projecting x-rays towards the detector; characterized by further comprising: at least one step (S4) of detecting in the two dimensional x-ray images (1) or the sinogram (2) at least one feature (3a) of the object (3) by using a trained artificial intelligence algorithm; and at least one step (S5) of creating, based on the detection, calibration information which defines the geometry of the x-ray projection.
The present invention relates to a method of metal artefact reduction in x-ray dental volume tomography, the method comprising: a step (S1) of obtaining two-dimensional x- ray images (1) or a sinogram (2) of at least part (v) of a patient jaw (3a), acquired through relatively rotating an x-ray source (4) and a detector (5) around the patient jaw (3a); the method being characterized by further comprising: a step (S2) of detecting metal objects (6) in the two-dimensional x-ray images (1) or the sinogram (2) by using at least a trained artificial intelligence algorithm to generate 2D masks (7) which represent the metal objects (6) in the two-dimensional x-ray images (1) or 3D masks which represent the metal objects (6) in the sinogram (2), respectively; and a step (S4;S5) of reconstructing a three dimensional tomographic image (8) respectively based on two-dimensional x-ray images (1) or the sinogram (2) and the 2D masks (7) or the 3D masks as generated.
The present invention relates to a method of preparing a digital 3D model suitable to be generated and post-processed with an additive manufacturing system (1) comprising: an additive manufacturing apparatus (2) for generating the 3D object (3) corresponding to the prepared digital 3D model, attached to a platform (4) which can be gradually moved upwards, out of a fluid resin (5a) in a vat (6); and at least one post-processing apparatus (7) for performing at least one of washing, drying and curing the 3D object (3) received and maintained in the state attached to the platform (4) during the post-processing, the method comprising: a step of providing the digital 3D model; the method being characterized by further comprising: a step of determining fluid-collecting, basin-like, open regions (8) or fluid-sucking, dome-like, open regions (9) of the digital 3D model orientated in said state relative to the platform (4), and a step of including at least one drain channel (10) and/or at least one vent channel (11) into the fluid-collecting, basin-like, open region (8) and/or the fluid-sucking, dome-like, open region (9) in the digital 3D model respectively for preventing collection of fluid (5a, 5b) or suction of fluid (5a, 5b) during the generation process and the post-processing process.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
The present invention relates to a method of preparing a digital 3D model suitable to be generated and post-processed with an additive manufacturing system (1) comprising: an additive manufacturing apparatus (2) for generating the 3D object (3) corresponding to the prepared digital 3D model, attached to a platform (4) which can be gradually moved upwards, out of a fluid resin (5a) in a vat (6); and at least one post-processing apparatus (7) for performing at least one of washing, drying and curing the 3D object (3) received and maintained in the state attached to the platform (4) during the post-processing, the method comprising: a step of providing the digital 3D model; the method being characterized by further comprising: a step of determining fluid-collecting, basin-like, open regions (8) or fluid-sucking, dome-like, open regions (9) of the digital 3D model orientated in said state relative to the platform (4), and a step of including at least one drain channel (10) and/or at least one vent channel (11) into the fluid-collecting, basin-like, open region (8) and/or the fluid-sucking, dome-like, open region (9) in the digital 3D model respectively for preventing collection of fluid (5a, 5b) or suction of fluid (5a, 5b) during the generation process and the post-processing process.
B29C 64/124 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective
The invention relates to a method for producing a panoramic tomographic image (1, 11, 60) of an object (2) to be recorded using a 2D panoramic X-ray device (3), in the course of which X-rays (4) produced by means of an X-ray source (5) irradiate the object (2) and are acquired by means of an X-ray detector (7), wherein, during a movement of the X-ray source {5) and the X-ray detector (7) around the object (2), a number of 2D X-ray projection images (30) are acquired from different acquisition directions (6). A first panoramic tomographic image (1) is calculated from the acquired 2D X-ray projection images (30) using a reconstruction method, wherein the acquired 2D X-ray projection images (30) are modified using a modification method, wherein, from the modified 2D X-ray projection images (40, 50) and using the reconstruction method, a second panoramic tomographic image (11) is calculated with a higher weighting of artifacts (20) relative to anatomical structures (17, 18, 19), wherein a third panoramic tomographic image (60) with significantly reduced artifacts is calculated.
The invention relates to a method for producing a tooth replacement part (120) from a blank (112) using a CAM processing device (102). The method comprises a step of varying the orientation of a blank body (114) in a processing position relative to two processing tools (104, 106). The varying comprises a first orienting of the blank body and processing tools relative to one another from a first processing orientation into a second processing orientation. In so doing, the orientation of the blank body relative to the two processing tools in the first processing orientation in relation to the orientation of the blank body relative to the two processing tools in the second processing orientation is pivoted at a first pivot angle.
The invention relates to a method for producing a tooth replacement part (120) from a blank (112) using a CAM processing device (102). The method comprises a step of varying the orientation of a blank body (114) in a processing position relative to two processing tools (104, 106). The varying comprises a first orienting of the blank body and processing tools relative to one another from a first processing orientation into a second processing orientation. In so doing, the orientation of the blank body relative to the two processing tools in the first processing orientation in relation to the orientation of the blank body relative to the two processing tools in the second processing orientation is pivoted at a first pivot angle.
A stereolithography apparatus (1) for generating a three-dimensional object (2), comprising: an optical unit (4) for projecting an image towards the photocurable substance (3) for hardening the photocurable substance (3) deposited in the focus layer (5); a control unit (6), characterized by further comprising: a detection unit (7) which comprises: a detection means (8) movably arranged in a detection region (9) for detecting during the generation process or in a generation-pause the image projected by the optical unit (4) and for outputting a detection signal; and a first driving means (10) for moving the detection means (8) into or out of the detection region (9), wherein the optical unit (4) comprises: a second driving means (11) linked to the optical unit (4) for moving the focus layer (5) into or out of the detection region (9), wherein the control unit (6) adjusts the optical unit (4) and/or modifies the image to be projected based on the signal indicative of the detected image.
B29C 64/129 - Procédés de fabrication additive n’utilisant que des matériaux liquides ou visqueux, p.ex. dépôt d’un cordon continu de matériau visqueux utilisant des couches de liquide à solidification sélective caractérisés par la source d'énergie à cet effet, p.ex. par irradiation globale combinée avec un masque
B33Y 30/00 - Appareils pour la fabrication additive; Leurs parties constitutives ou accessoires à cet effet
B33Y 50/02 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
B29C 64/232 - Moyens d’entraînement pour un mouvement le long de l'axe orthogonal au plan d’une couche
B29C 64/236 - Moyens d’entraînement pour un mouvement dans une direction dans le plan d’une couche
B29C 64/241 - Moyens d’entraînement pour mouvement rotatif
B29C 64/393 - Acquisition ou traitement de données pour la fabrication additive pour la commande ou la régulation de procédés de fabrication additive
