A method for registering a sensor coordinate system of a first sensor of an implant to an anatomical coordinate system using a surgical system is provided. The implant includes a second sensor, and the surgical system includes a surgical navigation system. The first sensor has a predetermined spatial relationship relative to the implant when the implant is coupled to a bone of a patient. The method includes receiving at least one medical image defining the anatomical coordinate system, the at least one medical image including a first body segment and a second body segment forming a joint. In addition, the method includes determining a first angle of the joint based on motion data, determining a second angle of the joint based on surgical navigation system, comparing the first angle to the second angle, and selectively adjusting one or more parameters of the first sensor.
Techniques and systems are described for mixed reality bone graft cutting. A method comprises, receiving tracking input of a scene in which a target bone is positioned on a bone support member of a platform, wherein the platform that comprises a reference marker; generating registration data that registers the reference marker with a coordinate system; obtaining data defining a planned surface of die target bone; determining, based on the registration data, a position in the coordinate system for a virtual object representing the planned surface of the target bone; and while the target bone is positioned on the bone support member of the platform, causing a mixed reality (MR) visualization device to output the virtual object for display so that the virtual object appears to a user of the MR visualization device to pass through the target bone and indicates the planned surface of the target bone.
An example method includes obtaining, by a processing system comprising one or more processors implemented in circuitry, ultrasound imaging data representing a non-viewable portion of a bone of a patient; identifying, by the processing system, based on the ultrasound imaging data, a soft tissue attachment point, wherein the soft tissue attachment point is a point on the non-viewable portion of the bone at which a soft tissue structure is attached to the bone; and causing, by the processing system, a Mixed Reality visualization device to display a virtual indicator superimposed on a viewable portion of the bone at a location corresponding to the soft tissue attachment point.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
4.
GENERATION OF PREMORBID BONE MODELS FOR PLANNING ORTHOPEDIC SURGERIES
A method comprising: for each respective training iteration of a plurality of training iterations: applying a generator machine learning (ML) model of a generative adversarial network (GAM) to input data to generate an output bone model for tire respective training iteration: applying a second ML model of the GAN to the output bone model to generate a discriminator output for the respective training iteration, wherein the discriminator output for the respective training iteration comprises a level of confidence that the first ML model generated the output bone model: determining a loss value for the respective training iteration based on the discriminator output tor the respective training iteration; and updating parameters of the first ML model or the second ML model based on the loss value for the respective training iteration.
Various embodiments of a novel glenoid implant baseplate are disclosed. Provided is a prosthesis for attachment to a glenoid that includes a baseplate body that is a monolithic metallic structure and incorporates a distal surface and a proximal surface, a post extending from the proximal surface, and features associated with the post that can provide orientation stability for a modular bone augment. Also disclosed is a prosthesis for attachment to a glenoid that includes a baseplate body that is a monolithic metallic structure that incorporates an integrally formed metallic bone augment.
A computing system may be configured to obtain the first point cloud representing one or more bones of a patient, process the first point cloud using one or more point cloud neural networks to generate an output point cloud, the output point cloud including labels indicating locations of one or more landmarks on the one or more bones of the patient, and output the output point cloud.
A method for pre-morbid characterization of patient anatomy includes obtaining a first point cloud representing a morbid state of a bone of a patient, generating information indicative of at least one of pathological portions of the first point cloud or non-pathological portions of the first point cloud, the pathological portions of the first point cloud being portions corresponding to pathological portions of the morbid state of the bone, and the non-pathological portions of the first point cloud being portions corresponding to non-pathological portions of the morbid state of the bone, generating a second point cloud that includes points corresponding to the non-pathological portions, and does not include points corresponding to the pathological portions, generating, based on the second point cloud, a third point cloud representing a pre-morbid state of the bone, and outputting information indicative of the third point cloud representing the pre-morbid state of the bone.
A method for surgical planning includes obtaining, by a. computing system, a. first point cloud representing a first portion of a bone or a first cloud representing at least a portion of a bone, applying, by the computing system, a point cloud neural network to generate a second point cloud based on the first point cloud, the second point cloud comprising at least one of points representing at least a second portion of the bone or points representing an axis along the bone, and generating, by the computing system, surgical planning information based on the second point cloud.
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
9.
AUTOMATED PREDICTION OF SURGICAL GUIDES USING POINT CLOUDS
A method for predicting a tool alignment, the method comprising: obtaining, by a computing system, a first point cloud representing one or more bones of a patient; applying, by the computing system, a point cloud neural network to generate a second point cloud based on the first point cloud, the second point cloud, comprising points indicating the tool alignment; and determining, by the computing system, the tool alignment based on the points indicating the tool alignment.
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
Provided herein are various embodiments of an improved glenoid implant assembly that includes a baseplate, a polymer glenosphere, and an interfacing component. The interfacing component can be made of a material that is more rigid than the polymer glenosphere, has a bowl-shaped configuration with a convex side and a recessed side, where the convex side is configured to be secured to the circular recessed portion of the polymer glenosphere and the recessed side is configured to securely receive the baseplate. The interfacing component is interposed between the polymer glenosphere and the baseplate and provide a secure attachment between the polymer glenosphere and the baseplate.
An example method includes obtaining, by one or more processors, a target atlas of a particular patient on which an arthroplasty procedure is to be performed; selecting, by the one or more processors and based on a comparison of values of the target atlas and a plurality of reference atlases of other patients on which the arthroplasty procedure has been performed, at least one reference atlas of the plurality of reference atlases of the other patients; and determining, by the one or more processors and based on the selected at least one reference atlas, one or both of an implant size and an implant alignment for the particular patient.
A method for automatically recommending an orthopedic prosthesis for implantation in a patient comprises obtaining, by a computing system, medical image data for the patient; applying, by the computing system, a machine learning model to generate a predicted prosthesis shape for the patient based on the medical image data for the patient; identifying, by the computing system, from a plurality of orthopedic prostheses available for implantation in the patient, an orthopedic prosthesis that corresponds to the predicted prosthesis shape; and recommending, by the computing system, the identified orthopedic prosthesis for implantation in the patient.
G16H 50/20 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
G16H 50/70 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for mining of medical data, e.g. analysing previous cases of other patients
A61F 2/00 - Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
Various embodiments of novel glenoid implant for replacing a portion of an articulation surface of a joint is disclosed. In one example, a prosthetic implant for glenoid includes a baseplate that is configured to be anchored to a bone, and has a bone-facing surface and a second surface opposite the bone-facing surface, where the second surface is configured with a pair of slots for receiving and releasably coupling with a corresponding pair of parallel tabs provided on an articulating component.
A computer implemented method of designing an object in a Computer Aided Design ("CAD") application using Geometric Dimensioning and Tolerancing (GD&T), includes drawing, by one or more processors, an object in the CAD application; applying, by one or more processors, a geometric tolerance to at least one of the features (502) having one or more of Form, Orientation, and Location constraints and a tolerance range according to a GD&T standard; determining, by the one or more processors, a relative cost of the geometric tolerance (508) using the tolerance range and a total number of the one or more constraints of Form, Orientation, and Location; and automatically generating a notification to the user (512) of a relative cost of the geometric tolerance relative to narrower and/or broader tolerance ranges than the tolerance range selected for the one or more features of the object.
G06F 30/12 - Geometric CAD characterised by design entry means specially adapted for CAD, e.g. graphical user interfaces [GUI] specially adapted for CAD
G06F 30/17 - Mechanical parametric or variational design
Techniques and systems are described for mixed reality (MR) guidance of an ultrasound probe. A system may obtain reference data depicting a bone of a patient; determine a physical location of an ultrasound probe; generate, based on first ultrasound data generated by the ultrasound probe, registration data that registers virtual locations on the bone of the patient as depicted in the reference data with corresponding physical locations on the bone of the patient; generate virtual guidance based on the reference data, the registration data, and the physical location of the ultrasound probe, wherein the virtual guidance provides guidance to a clinician regarding how the ultrasound probe is positioned relative to a target position at which the ultrasound probe is able to generate second, ultrasound data that provides information regarding a soft tissue structure of the patient; and cause a MR visualization device to output the virtual guidance to the clinician.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 34/20 - Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
16.
SYSTEM FOR TRACKING TAGGED SURGICAL ARTICLES WITH A TRANSPORT CONTAINER TRACKING ASSEMBLY
A system for tracking tagged surgical articles across a network. A transport container defining an interior with upper and lower interior surfaces receives a tracking assembly including a. housing supporting an antenna arranged to selectively generate a wave extending helically away from the lower interior surface towards the upper interior surface within the interior. A communication interface wirelessly communicates with a network, and a controller coupled to the housing and disposed in electrical communication with the antenna, and the communication interface is configured to: generate the wave with the antenna to scan the interior of the transport container for tagged surgical articles, receive identity data from each of the tagged surgical articles with the antenna in response to generating the wave, and transmit the identity data, across the network via the communication interface.
G06Q 10/08 - Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
A61B 50/30 - Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
H04W 4/029 - Location-based management or tracking services
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
17.
USING MIXED-REALITY HARDWARE FOR RANGE OF MOTION ESTIMATION DURING ROBOT-ASSISTED ORTHOPEDIC SURGERY
A method comprises obtaining position data generated based on signals from one or more sensors of a mixed-reality (MR) visualization device while the bones of the joint are at a plurality of positions; determining, based on the position data, positions of the bones of the joint; generating, by the surgical assistance system, joint tension data based on the positions of the bones of the joint; determining, based on the joint tension data, areas of a target bone to remove, wherein the target bone is one of the bones of tire joint; generating registration data that registers markers with a coordinate system, wherein the markers are attached to one or more of the bones of the joint; and based on die registration data, controlling operation of a robotic arm of a robot during removal of bone tissue from the areas of the target bone.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
Various embodiments of novel glenoid implant are disclosed. The glenoid implant includes: an articular body that includes an articulation surface and a bone-facing surface on opposite side of the articular body; a metal tray attached to the bone-facing surface; and one or more holes provided in the articular body extending from the articulation surface through the articular body and the metal tray to accommodate a screw therethrough. An implant system that includes the glenoid implant and a corresponding humeral head implant is also provided.
An example system includes a clamping tool including opposable surfaces configured to rest on and bear against a surface of a bone; and a registration marker of a mixed reality surgery system, the registration marker attached to the clamping tool.
A61B 34/20 - Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 17/88 - Methods or means for implanting or extracting internal fixation devices
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
Various embodiments disclosed herein relate to stemmed and stemless humeral anchors, and implanting tools for use in shoulder arthroplasty procedures. For example, the humeral anchor can include a distal shaft portion, a proximal portion, and a metaphyseal portion connecting the distal shaft portion and the proximal portion. The distal shaft portion can include multiple apertures configured to receive a screw or one or more plugs. The proximal portion can include a stem face configured to be removably attached to an implanting tool or to couple to an anatomic insert or a reverse insert.
A61B 17/04 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for suturing wounds; Holders or packages for needles or suture materials
22.
GLENOID IMPLANT COMPONENTS AND INSTRUMENTS THEREFOR
A glenosphere handling tool, which can be an inserter, is provided that includes an elongate body and a retention portion. The retention portion is disposed at a distal end of the elongate body. The retention portion includes a plurality of wall segments of the elongate body separated from each other by one or more slots. The slot(s) extends proximally from the distal end of the elongate body. The retention portion also includes an enlarged periphery at the distal end of the elongate body. The enlarged periphery comprising a proximally facing edge configured to engage an inner wall surface of a glenosphere. The retention portion is configured such that when the retention portion is in a free state the proximally facing edge faces and may contact a surface of a glenosphere to retain the glenosphere.
Glenoid implants, used in shoulder reconstruction or replacement surgery include a main body having an articulation surface configured to interface with the humeral head and having an anchoring surface opposite the articulation surface; and a fixation structure extending away from the anchoring surface comprising an osteogenous material portion. The fixation structures can include polymeric material, porous metallic material, porous polymer material and/or combinations thereof.
A method comprises obtaining, by a computing system, one or more surgeon preference parameters that specify values of one or more surgical parameters, wherein the surgical parameters include one or more positioning parameters for a glenoid implant to be attached to a glenoid fossa of a patient during a surgery; determining, by the computing system, based on one or more anatomic parameters of the patient and the surgeon preference parameters, one or more suggested surgical options, each of the surgical options corresponding to a. different combination of the positioning parameters for the glenoid implant and types of glenoid implant; and outputting, by the computing system, for display, the one or more suggested surgical options.
G16H 50/50 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
25.
COMPUTER-ASSISTED RECOMMENDATION OF INPATIENT OR OUTPATIENT CARE FOR SURGERY
A computer-implemented method comprises: obtaining, by a computing system, anatomic data for a patient and comorbidity data for the patient; generating, by the computing system, based on the anatomic data for the patient and the comorbidity data tor the patient, a recommendation regarding whether the patient should undergo a surgery as an inpatient procedure or an outpatient procedure: and outputting, by the computing system, the recommendation.
G16H 20/40 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
G16H 50/30 - ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for individual health risk assessment
G16H 40/20 - ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management or administration of healthcare resources or facilities, e.g. managing hospital staff or surgery rooms
A humeral implant configured for implantation at a distal end portion of a humerus. The humeral implant can be configured to articulate with a portion of an ulna. The humeral implant may include a body portion having a first end, a second end, and a side surface that extends between the first end and the second end, where the side surface includes a concave region that defines a first cross-sectional diameter that is a minimum cross-sectional diameter fo the body portion.
An ulnar implant configured for implantation at an end portion of an ulna. The ulnar implant may be configured to articulate with a portion of a humerus, which may be a native end surface of the humerus bone or a humeral implant. The ulnar implant may have a curved or saddle shaped member. The curved or saddle shaped member may include a first concave surface and a second convex surface.
An example method includes obtaining one or more intraoperative images, wherein: a surgical site includes bones that are not substantially exposed through skin of the patient during the surgery, a connected K-wire is attached to one of the bones, an external portion of the connected K-wire is connected to a fixation device that is attached to the patient; performing a registration process that generates registration data for mapping positions on the external portion of the connected K-wire in the real-world coordinate system with corresponding positions in a virtual coordinate system; generating a visualization that includes the models of the bones superimposed on the surgical site; based on the changes to the positions of the external portion of the connected K-wire, updating positions of the models of the bones in the visualization to maintain correspondence between positions of the bones and the positions of the models of the bones.
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
Devices, systems, and techniques are described for determining surgical guidance for a joint replacement implantation based on dynamic joint analysis. Techniques include receiving patient specific data indicative of pre-operative motion associated with an ankle (300) of a patient and determining, based on the patient specific data, a current kinematic axis (302) of the motion associated with the ankle. Techniques also include determining a target kinematic axis (304) of motion for the ankle, the target kinematic axis being different than the current kinematic axis, and generating a transform function between the current kinematic axis and the target kinematic axis. Additionally, techniques include generating, based on the transform function, a recommended surgical intervention that adjusts tissue associated with the ankle to achieve the target kinematic axis of motion.
A61B 34/20 - Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
A computing system may generate an initial segmentation mask by applying a neural network to a 3D image of a set of objects. The initial segmentation mask associates voxels of the 3D image with individual objects of the set of objects. Additionally, the computing system generates a refined segmentation mask. As part of generating the refined segmentation mask, the computing system performs, for each respective object, a front propagation process for the respective object. The front propagation process for the respective object uses input voxel data to relabel, in the refined segmentation mask, voxels of the 3D image as being associated with the respective object. A stopping condition of a path evaluated by the front propagation process for the respective object occurs when the front propagation process evaluates a voxel identified in the initial segmentation mask as being associated with a different one of the objects from the respective object.
Techniques are described for identifying bone areas for removal during a medical procedure. Processing circuitry may generate a virtual model of an anatomical object with the bone areas removed and one or more indications for the bone areas that are to be removed. During surgery, the processing circuitry may receive image data and update the one or more indications as the bone areas are removed. The processing circuitry may generate the virtual model and the bone areas for visual overlay on the actual anatomical object.
Techniques are described for determining a pre-morbid shape of an anatomical object. A method includes receiving first image data of a first anatomical structure and second image data of a second anatomical structure. The first and second anatomical structures are anatomically related. The method includes determining a first shape model based on the first image data and a joint statistical shape model (SSM). The method includes determining a second shape model based on the first shape model, the first image data, and the second image data, the second shape model including a second estimated shape of the first anatomical structure and a second estimated shape for the second anatomical structure. The method includes generating anatomical information indicative of the pre-morbid shape of at least the second anatomical structure based on the second shape model.
A method comprises determining, by a surgical assistance system, a potential insertion point on a surface of a bone of a patient; and presenting, by a Mixed Reality (MR) visualization device of the surgical assistance system, an MR scene that includes a virtual trajectory guide, wherein: the virtual trajectory guide comprises an elliptical surface, and for each location of a plurality of locations on the elliptical surface: the location corresponds to a potential insertion axis that passes through the location and the potential insertion point on the surface of the bone, and the location is visually distinguished based on a quality of a portion of the bone along the potential insertion axis corresponding to the location.
A surgical planning system for use in surgical procedures to repair an anatomy of interest includes a preplanning system to generate a virtual surgical plan and a mixed reality system that includes a visualization device wearable by a user to view the virtual surgical plan projected in a real environment. The virtual surgical plan includes a 3D virtual model of the anatomy of interest. When wearing the visualization device, the user can align the 3D virtual model with the real anatomy of interest, thereby achieving a registration between details of the virtual surgical plan and the real anatomy of interest. The registration enables a surgeon to implement the virtual surgical plan on the real anatomy of interest without the use of tracking markers.
Techniques are described for guiding a joint replacement surgery. In some examples, a system includes a visualization device comprising one or more sensors; and processing circuitry configured to determine, based on data generated by the one or more sensors, one or more size parameters of a bone resection surface viewable via the visualization device; select, based on the one or more size parameters of the bone resection surface and from a plurality of implants, an implant; and output for display, via the visualization device, a graphical representation of the selected implant relative to the bone resection surface.
A61B 34/20 - Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 34/00 - Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
A glenosphere handling tool is provided that includes an elongate body and a retention portion. The retention portion is disposed at a distal end of the elongate body. The retention portion includes a plurality of wall segments of the elongate body separated from each other by one or more slots. The slot(s) extends proximally from the distal end of the elongate body. The retention portion includes an enlarged periphery at the distal end of the elongate body. The enlarged periphery comprising a proximally facing edge configured to engage an inner wall surface of a glenosphere. The retention portion is configured such that when the retention portion is in a free state the proximally facing edge faces and may contact a surface of a glenosphere to retain the glenosphere. The retention portion is configured to be deflected at the distal end of the elongate body such that the enlarged periphery has a reduced profile for separating the handling tool from a glenosphere.
In some examples, a simulator system may simulate one or more minimally invasive surgery (MIS) procedures associated with bone removal. The simulator system comprises an input device configured to detect a position of a portion of a user tool relative to an operation envelope, a simulation device defining one or more surfaces that define one or more boundaries for a movement of the user tool relative to the operation envelope during a simulated surgical procedure, and processing circuitry. The processing circuitry is configured to receive, from the input device, information indicative of the position of at least the portion of the user tool relative to the operational envelope, generate a performance metric based on the position of at least the portion of the user tool relative to the operational envelope over a period of time, and output, for display to a user, the performance metric.
Techniques are described for bone-graft harvesting in orthopedic surgery. Processing circuitry may obtain a virtual model of a bone graft to be harvested from a donor bone, wherein the virtual model of the bone graft specifies a volume of the donor bone to be harvested as the bone graft; and output for display, via a visualization device, a graphical representation of the specified volume to be harvested relative to a portion of the donor bone viewable via the visualization device.
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
H04N 13/332 - Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
Guides for guiding a tool into a medullary canal of a bone. The guides can include a base and a guide feature. The base can include a first surface configured to contact the bone and a second surface opposite the first surface. The guide feature can be disposed to guide the tool along a central portion of the medullary canal.
A surgical assistance system obtains patient-specific values of a plurality of physical characteristics of a humeral bone of a patient. The surgical assistance system predicts, based on the patient-specific values, a humeral prosthesis (202) for the patient from among a plurality of humeral prostheses, wherein the predicted humeral prosthesis has a filling ratio less than a remodeling threshold for the patient. The filling ratio of the humeral prosthesis is a ratio of (i) a radial distance from a lengthwise central axis of a stem (206) of the humeral prosthesis to an outer surface of the stem, to (ii) a radial distance from the lengthwise central axis of the stem to an inner surface of the intramedullary canal (208) of a humerus of the patient. The remodeling threshold for the patient is a filling ratio above which the humeral prosthesis would cause remodeling in the patient..
A surgical assistance system may obtain a pre-revision model of a bone of a patient. The pre-revision model of the bone represents a pre-revision state of the bone after a prior orthopedic surgery on the bone. In this example, an orthopedic prosthesis was attached to the bone during the prior orthopedic surgery. Additionally, the surgical assistance system may obtain intra-revision imaging data of the bone. The intra-revision imaging data represents an intra-revision state of the bone during the orthopedic revision surgery after removal of the orthopedic prosthesis from the bone. The surgical assistance system may determine, based on the intra revision imaging data, damaged and intact parts of the bone. The surgical assistance system may then generate a second intra-revision model of the bone by modifying the pre-revision model of the bone to exclude damaged parts of the bone.
A61B 34/10 - Computer-aided planning, simulation or modelling of surgical operations
A61B 90/00 - Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups , e.g. for luxation treatment or for protecting wound edges
A61B 34/20 - Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
A61B 90/50 - Supports for surgical instruments, e.g. articulated arms
42.
DEVICE FOR IN-SITU FABRICATION PROCESS MONITORING AND FEEDBACK CONTROL OF AN ELECTRON BEAM ADDITIVE MANUFACTURING PROCESS
A High Energy Beam Processing (HEBP) system (1) provides feedback signal monitoring and feedback control for the improvement of process repeatability and three-dimensional (3D) printed part quality. Signals (301, 302, 303, 308) reflecting process parameters and the quality of the fabricated parts are analyzed by monitoring feedback signals from artifact sources (61A, 61B, 62A, 62B, 63A, 63B, 64A, 64B) with a process controller (20) which adjusts process parameters. In this manner, fabricated parts are produced more accurately and consistently from powder feedstock by compensating for process variation in response to feedback signals.
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor
B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
A system includes a constrained acetabular insert, a dual mobility liner, and a femoral head. The constrained acetabular insert has its perimeter extending beyond hemisphere and the dual mobility liner has its perimeter extending beyond hemisphere and configured to tilt and rotate within the constrained acetabular insert. The femoral head is configured to tilt and rotate within the dual mobility liner. The constrained acetabular insert may include a plurality of tabs and the dual mobility liner may include screw threads for receiving the plurality of tabs.
A monopedicular targeting system for posterior spinal surgery includes a first joint component, a fastener for affixing the first joint component to a single pedicle, a positioning arm having a second joint component for mating with the first joint component to form a first joint having three rotational degrees of freedom, and a connector for coupling the spinal surgery device to the positioning arm. The connector has a third joint component that mates with a fourth joint component of a spinal surgery device to form a second joint having three rotational degrees of freedom. A monopedicular targeting method for posterior spinal surgery includes affixing a fastener to a single pedicle and adjusting three translational degrees of freedom and three rotational degrees of freedom of a posterior spinal surgery device with respect to a pedicle of a vertebra by manipulating joints of a manipulator connecting the spinal surgery device to the fastener.
A61B 17/56 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
A61B 17/58 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or the like
A system for securing a length of filament (90) in working communication with tissue (110). The system includes a first filamentary sleeve (40) having a length along a longitudinal axis and a passageway (43) therethrough. The passageway (43) is dimensioned to allow slidable movement therein of the length of filament (90). Also included within the system is and a filament engagement device (70) that includes a pathway (73). The pathway (73) has a first configuration and second configuration, wherein a portion of the length of filament (90) is slidable within the pathway (73) when the pathway (73) is in the first configuration and is restricted from sliding when the pathway (73) is in the second configuration.
A61B 17/04 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for suturing wounds; Holders or packages for needles or suture materials
46.
STRUCTURALLY SUPPORTING INSERT FOR SPINAL FUSION CAGE
An expandable implant 10 includes a structural insert 30 to provide a robust connection between an insertion instrument and the expandable implant 10. The structural insert 30 can be made from a different material than the remainder of the implant to withstand compressive, tensile, shear, and torsional loads which may be present while inserting the implant 10 into a patient. The structural insert 30 may be formed as part of a bottom member 114 of the implant 10 or may be a separate element inserted into the implant body. The structural insert 30 may provide a threaded connection to an insertion instrument. The expandable implant 10 may include a bone graft port 26 in fluid communication with a bone graft opening 28 extending through the implant body.
A ratcheting inserter device (24) for tensioning a knotless suture anchor (22) includes an outer inserter shaft (26) and an inner inserter shaft (40) having a common longitudinal axis. A ratcheting mechanism (54) provided between the inner inserter shaft and the outer inserter permits rotation of the inner inserter shaft in one direction relative to the outer inserter shaft. The outer inserter shaft has a protrusion (50) at a distal end (28) that is received by an anchor outer sleeve (80) of a suture anchor to prevent relative rotation thereof, and the inner inserter shaft has a projection (48) at the distal end that is received by an inner core (110) of the anchor for rotational movement therewith. The ratcheting inserter device rotates the inner core of the suture anchor to spool and tension suture thread. Thereafter, the ratcheting mechanism is disengaged and the inner inserter shaft is forced axially into the anchor outer sleeve.
A61B 17/04 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for suturing wounds; Holders or packages for needles or suture materials
In one embodiment, the present invention is a method for repairing tissue, comprising the steps of drilling a through-hole (13) through a bone fragment (11); drilling a bore hole (12) at least partially into a bone (10) at a reattachment location (50) where the bone fragment (11) is to be reattached; implanting a first filamentary fixation device (14) into the bore hole (12), the first filamentary fixation device (14) having at least a first filament end (15) extending therefrom; passing the first filament end (15) out of the bore hole (12) and through the through-hole (13) through the bone fragment (11); positioning the bone fragment (11) onto the bone (10) at the reattachment location (50); and securing the first filament end (15) to fixedly secure the bone fragment (11) at the reattachment location (50).
A61B 17/58 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or the like
A suture retaining device (100), which has an elongate body (140) having a cross section that is at least partially circular, and a head portion (110) joined to the elongate body (140). The head portion (110) has a sidewall (150) that defines a cavity (120) for receipt of a suture. The sidewall (150) also has an internal surface (130) that is at least partially flat, and the cavity (120) is enclosed by the sidewall (150). The suture retaining device (100) may be utilized in conjunction with a suture passing device (200), which has a body (210) that includes a distal end, proximal end and outer surface; an internal passageway (230) extending through the body from the distal end to the proximal end; and a contoured portion (220) defining a recess (226) in the body (210), the recess (226) extending radially from the outer surface to the internal passageway (230), the contoured portion (220) is homogenous.
A61B 17/04 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for suturing wounds; Holders or packages for needles or suture materials
A61B 17/06 - Needles; Holders or packages for needles or suture materials
A guide (10) for use prior to, or concurrently with, resecting a patient's bone (20) includes a body (100), an anterior adjustment member (300), at least one posterior adjustment foot (200, 205), at least one adjustable condylar alignment pin (600), an adjustable anterior arm (400), and means to direct guide pins into the femur, such as a rotation arm (500). The body has apertures configured to accept pins. The anterior adjustment member couples to the body and moves toward/away from the femur and contacts an anterior portion of the femur. The posterior adjustment foot couples to the body and moves toward/away from the femur and contacts a posterior portion of the femur. The anterior arm couples to the anterior adjustment member and is configured to contact the femur proximal of the anterior adjustment member. The rotation arm couples to the body and provides guides to drill into the femur.
A device and method for mixing and applying biomaterials comprising a plunger having a plunger body and a dispensing surface, wherein the plunger body is displaceable within a syringe barrel, a shaft within the plunger body having a first end and a second end, wherein the shaft is positioned to extend through and from the plunger body, a mixing surface attached to the first end of the shaft, and a locking device that enables the mixing surface to alternate between an extended position and a retracted position, wherein the mixing surface projects from the dispensing surface in the extended position to promote mixing of the substance, and wherein the mixing surface is retracted through the dispensing surface into the plunger body in the retracted position such the dispensing surface may act on and dispense the substance.
Systems and methods for shaping and filling offset bone voids during revision procedures of total knee replacements are disclosed. The systems disclosed herein generally include an intramedullary reamer (102), an offset driver (300), a cylindrical reaming tool (400), an offset reaming guide (500), and a conical reamer (600). An alternate embodiment of the system may also generally include an IM reamer (102), an offset driver (300), an offset broaching tool (700), and a second stage broaching tool (800). Yet another embodiment may generally include an elongate IM reamer (1500), a cone reamer (1600), a reamer guide shaft (1800), a cone trial (1700), a sizing template (1900), a template guide (2000), an offset lobe reamer (2200), and offset lobe reamer retainer (2100). Metaphyseal reconstruction devices (910) and void filling cones (2300, 2400) can be used to fill the bone voids in conjunction with the systems and methods disclosed herein.
Disclosed herein are systems and methods for shaping bone voids during revision procedures of total knee replacements. The systems disclosed herein generally include a cannulated reamer assembly (600), a reaming guide assembly (100), a guide tube assembly (200), a trial stem assembly (400), and an optional insertion/removal tool (500). Metaphyseal reconstruction devices (800, 900) can be used to fill the bone voids in conjunction with the systems and methods disclosed herein.
Systems, devices, and methods for treating the spine are disclosed herein. Medical devices can be positioned along a subject's spine to treat various conditions and diseases. The medical device can include an actuator assembly and a clamp assembly. The actuator assembly can be positioned at an interspinous space between a superior spinous process and an inferior spinous process. The actuator assembly can be used to reconfigure the clamp assembly such that the clamp assembly clamps onto the superior and inferior spinous processes.
Cements containing certain small molecule amino acid phosphate compounds such as phosphoserine and certain multivalent metal compounds such as but not limited to calcium phosphate have been found to have improved properties and form a macromolecular network in the presence of a bioactive glass material that contain silicates, phosphates, and calcium salts which can be involved in the formation of bonding sites.
Reduced bone fracture fixation devices and methods for using the same are provided. Aspects of the reduced bone fracture fixation devices include a body dimensioned to be positioned in a reduced bone fracture, wherein the body has a wedge shape configuration sufficient to exert a force on bone of the reduced bone fracture and maintain reduction of the reduced bone fracture. The devices, kits and methods of the invention find use in a variety of applications, such as in applications in which it is desired to repair a reduced bone fracture.
A61B 17/58 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or the like
A unidirectional plunger device (48) for a syringe (10) includes a base member (50) and a ratchet mechanism. The base member is configured to attach to the proximal end (28) of the syringe body (12) such that the ratchet mechanism engages the plunger (14) of the syringe. The ratchet mechanism may include a pawl (68) configured to engage teeth (72) on a plunger rod (18) of the plunger. The ratchet mechanism is desirably configured to permit distal movement of the plunger while resisting proximal movement of the plunger. The unidirectional plunger device may be a retrofit that can be attached to (e.g., clipped onto) an existing syringe design. The device may be used in conjunction with a two-barrel syringe for dispensing a two-part curable composition, such as calcium phosphate bone cement or epoxy resin.
Disclosed herein are devices and methods for guiding a surgical instrument for resecting a portion of a humerus of a patient. The surgical instrument is a patient-specific cutting guide (50) having a base portion (52) having a contact surface shaped to substantially match an outer surface of a neck portion (13) of the humerus (12). Guide (50) includes at least one proximal stabilization member (54, 58) extending medially from the base portion and having a contact surface shaped to substantially match an outer surface (11) of a head portion (14) of the humerus. Guide (50) further includes at least one distal stabilization member (62) extending distally from the base portion and having a contact surface shaped to substantially match an outer surface of a shaft portion (17) of the humerus. Base portion (52) includes a guide slot (68) for guiding the surgical instrument.
The present invention includes a method for activating platelets in a platelet solution, the method may include passing the platelet solution through an activator (10) at least once to activate at least one of the platelets in the platelet solution to produce an activated platelet solution. The activator (10) may further include a flow disruption element (15). The method may further induce administering the activated platelet solution to the repair site of a patient. The present invention may also be a system for treating a medical condition at a repair site within a patient in need thereof, which may include a platelet solution container (30) for housing a platelet solution; an activator (10,110) to activate at least one platelet; and an introducer to direct the at least one activated platelet to the repair site.
In one embodiment, the present invention may include a method of performing microdrilling surgery including directing a distal portion of a cannulated guide having an angle of curvature adjacent to a defect site; directing a drill, including a drill head and a flexible shaft, through the cannulated guide from a proximal portion of the guide through the distal portion and towards the defect site; drilling at least one hole into the defect site; and removing the drill and cannulated guide from the defect site and allowing blood or bone marrow to flow into the at least one hole towards the defect site.
A base component (24) for a tibial implant has a lateral compartment (40) and a medial compartment (42) spaced from the lateral compartment defining an open central section (52) therebetween. A connecting portion (44) connects the medial and lateral compartments at an anterior end (26) of the base component (24) which anterior end is located adjacent the anterior tibia. The open central section (52) of the base component intermediate the spaced medial and lateral compartments (40, 42) is open to a posterior end of the base component. The medial and lateral compartments have a bone contacting surface (20) and a superiorly facing surface. The connecting portion has a curved anteriorly facing surface (26) and has a first angled surface (28) extending at an angle from adjacent the anterior end (26) of the base component at a bone contacting surface (20) of the connecting portion superiorly to a posterior end of the connecting portion. The first angled surface (25) defining an anterior end of the open central section.
A non-invasive device for anchoring a suture includes a sheet to which a suture can be attached and an adhesive that can affix the sheet to bone. The method provides placing effective amount of an adhesive on a bone and attaching the suture to the adhesive and allowing the adhesive to set.
A61B 17/04 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for suturing wounds; Holders or packages for needles or suture materials
A knee prosthesis (100) includes a femoral component (102), a tibial component (104), and a coupling component (106) interconnecting the femoral component (102) and the tibial component (104). The tibial component (104) includes ball (108). The femoral component (102) is configured to move relative to the tibial component (104). The coupling component (106) defines an internal cavity (166) including a first spherical end portion (168) and a second spherical end portion (170). The internal cavity (166) is dimensioned to receive the ball (108) of the tibial component (104). The ball (108) is repositioned between the first spherical end portion (168) and the second spherical end portion (170) of the internal cavity (166) upon movement of the femoral component (102) relative to the tibial component (104).
A61F 2/00 - Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
Disclosed herein are systems and methods for performing total hip arthroplasty with patient-specific guides (200, 400, 500, 600). Pre-operative images of a pelvic region of a patient are taken in order to predefine the structure of the guides and corresponding implants. From the obtained image data an insertional vector (260) for implanting an acetabular implant or component into an acetabulum of the patient is determined, wherein the insertional vector is coaxial with a polar axis of the acetabular component. Also from the obtained image data, a superior surface (220) of the guides and implants can be shaped to match the acetabulum of the patient. A nub portion (280) extending outwardly from the superior surface of the guides and implants is shaped to substantially match the shape of a fovea (340) of the acetabulum. A guide portion (230) of the guides forming a slot (240) has a longitudinal axis coaxial with the determined insertional vector of a corresponding acetabular component.
A61B 19/00 - Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B 1/00-A61B 18/00, e.g. for stereotaxis, sterile operation, luxation treatment, wound edge protectors(protective face masks A41D 13/11; surgeons' or patients' gowns or dresses A41D 13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M 1/00)
Certain small molecule amino acid phosphate compounds such as phosphoserine and certain multivalent metal compounds such as calcium phosphate containing cements have been found to have improved properties and form an interpenetrating network in the presence of a polymer that contain either an electronegative carbonyl oxygen atom of the ester group or an electronegative nitrogen atom of the amine group as the bonding sites of the polymer surfaces to the available multivalent metal ions.
The present invention relates to a bone cement precursor system that is presented in the form of two shelf-stable pastes which have been terminally sterilized and are held in separate containers during product transport and storage. When the product is used during surgery, these pastes inject to a site of application through a static mixing device by the action of applied injection force. When the two pastes are mixed, they start to react to each other while injecting out. The resulting composition is highly biocompatible, osteoconductive, injectable, rapid setting and bioresorbable, and is useful in connection with bone repair procedures, for example, in the craniomaxillof acial, trauma and orthopedic areas.
One embodiment of the implant comprises a porous metal bone ingrowth portion (14) having a first side connected to a high density or solid (fully dense) metal portion (16) which in turn has an opposite side connected to a porous metal soft tissue ingrowth portion (12) thus forming a sandwich structure with the high density or fully dense portion in the middle. The implant may be made of a resorbable material such as an alloy of magnesium. Alternately, the alloy can be selected from the group consisting of calcium, iron, yttrium and lithium. The porous metal soft tissue ingrowth portion (12) has porosity characteristics allowing cartilage to interdigitate with the pores and extend outwardly beyond the platform of the metal surface towards a joint capsule. The solid or fully dense intermediate layer 16 may have some porosity, however that porosity prevents either bone tissue or cartilage tissue from migrating therethrough.
A surgical instrument (700) and method are provided for removal of a spinal implant (170) from the intervertebral disc space. The instrument (700) includes a carriage body (710) for interfacing with the implant (170), a housing (740) for interfacing with the vertebrae, and a handle portion (770) having a first portion (772) rotatably coupled with a proximal end (744) of the housing (740) and a second portion (774) rotatably engageable with a proximal attachment portion (714) of the carriage body (710). A central passage (746) of the housing (740) extends between the proximal end (744) and a distal engagement surface (742) of the housing (740). The central passage (746) is dimensioned to mate with the carriage body (710). Rotation of the handle portion (770) about an axis causes translational movement of the carriage body (710) along the axis. A modular inserter/distractor apparatus (200) and method and an anchor remover (400) and method are also provided.
A prosthetic implant (12, 100) has a stem (102) including a prosthetic joint member at an end thereof. The joint element has a soft tissue attachment element (14, 114) thereon for receiving ligaments or tendons surrounding the joint. In one embodiment the soft tissue attachment element (114) has an L-shape with a mounting flange portion (130) of the L-shape extending and clamped between the bearing portion (106) and base portion (126). The soft tissue attachment portion (114) has a portion (131) extending proximally from the mounting flange portion. The soft tissue attachment element mounting portion (114) is captured between the head bearing portion (106, 124) and base portion (126) preferably by clamping or being permanently attached to one of the base or bearing portions during manufacture.
A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine.
A surgical instrument and method for inserting a spinal implant (100, 170) in the intervertebral disc space between two adjacent vertebrae and an anchor (130, 140, 150, 160, 164, 166) engageable with the implant (100, 170) and an adjacent vertebra are provided. The instrument includes an inserter (200, 500) having an engagement portion including a distal engagement surface (206, 506) for interfacing with the implant (100, 170) and a handle portion (208, 508). The engagement portion includes a track (218, 220, 518, 519, 520, 521) for slidably translating the anchor (130, 140, 150, 160, 164, 166) toward the engagement surface (206, 506). A kit is provided including the inserter (200, 500) and a tamp (400, 600) to force the anchor (130, 140, 150, 160, 164, 166) into engagement with the implant (100, 170) and the adjacent vertebra. The kit may also include a cutter (300) for piercing the adjacent vertebra.
A system 10 for implanting an anchor into bone, the system comprising a curved cannulated guide 12, 14, 16, 18, 20 for percutaneous insertion, having a proximal end 30 and a distal end 32, 34, 52, 54, 62; a flexible drill 26 insertable through the curved guide from the proximal end to the distal end, the flexible drill having a shaft 102 having a flexible portion 106; and a flexible inserter 128 for inserting a suture anchor into a bore at the anatomical site formed by the flexible drill, the flexible inserter having a shaft 216 having a flexible portion 206, wherein the flexible portions of both the flexible drill and flexible inserter include a series of discrete, interlocking segments 106, 206.
A61B 17/04 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith for suturing wounds; Holders or packages for needles or suture materials
The present invention relates to systems and methods for preparing the trochlear groove (8) of a patient's femur (2) to receive a prosthesis (120) thereon. In the system, a combination drill-and-alignment guide (10) includes at least a proximal (20) and intermediate (40) section, and preferably also includes a distal (60) section. Guide holes (26,46,48) for receiving guide pins (70,72,74) therein are located in the proximal and distal sections of the guide. After the guide is positioned using at least one of several visual and/or tactile references in the system, the guides pins are placed through the guide holes of the guide and into bone. The guide may then be removed and replaced by cannulated reamers (134,136,138) that are rotated and used to resect a predetermined amount of bone around the guide pins. A prosthesis having at least a portion of an outer surface (122) that substantially matches the trochlear groove of the patient in a pre-degenerated state is then implanted on the resected bone.
The present invention provides biocompatible, non-resorbable porous containment structures for containment of bone graft material at a desired location for stimulation of bone growth. The porous containment structures have interconnected pores sized to allow fibrovascular integration with surrounding tissue and conduction of vascular tissue through the structure into the bone graft material.
A syringe (10) and a method of using the syringe (10) are disclosed. The syringe (10) includes a longitudinal body (12) having proximal (20) and distal (22) ends and including an aperture (26) between the proximal and distal ends. An injectable material, such as an adhesive bone cement, may be loaded into the body (12) of the syringe (10) through the aperture (26). After the injectable material is inserted, the aperture (26) may be closed by covering the aperture (26) with an aperture cover (16). The aperture cover (16) may be configured to slide into a position covering the aperture (26), or the aperture cover (16) may be placed in a position covering the aperture (26), such as by pivoting about a hinge (1114).
A61M 5/00 - Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm rests
A method for the repair of a cartilage defect in a patient in need thereof, including implanting an implant (10) into the cartilage defect, wherein the implant may comprise at least a first material (12), wherein the first material (12) may be porous and may be a scaffold that is expandable or compressible. The invention also includes an implant for the repair of a cartilage defect in a patient in need thereof, the implant (10) may include at least a first material (12) and a second material (14), wherein the first material (12) may be porous and may be a scaffold that is expandable or compressible, and wherein the first material (12) may surround the second material (14).
The present invention relates to a tissue defect repair implant 12 including a porous material, wherein the material is expandable or compressible. The implant may be a scaffold, and may also be formed of a material such as, for example, collagen or demineralized bone matrix. Another aspect of the invention may be a method for the repair of a tissue defect in a patient in need thereof, including implanting an implant 12 between two adjacent tissues, wherein the implant may include a porous material which is expandable or compressible. The two tissues may be soft tissue 25 and hard tissue 30, and alternatively, the two tissues may be soft tissue 25, and may further be the same or different soft tissues, 25, 50.
A61F 2/00 - Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
A method of producing a cartilage implant which may include coating a substrate with a thermo-sensitive polymer, seeding the polymer with a cell suspension comprising cells that may differentiate into chrondocyte-like cells, wherein the seeding may be conducted at a first temperature, culturing the cell suspension at an increased temperature, whereby cells in the suspension may adhere to the polymer and differentiate into chrondrocyte-like cells, which may form a cartilagenous implant, and decreasing the temperature of the polymer which may allow detachment of the implant from the polymer. The present invention may also include an implant based on this method. The invention may further include a cartilage implant for use in a patient in need thereof, which may include a random three-dimensional configuration of differentiated cells, which may have a natural adhesion surface on at least a portion of the outer surface of the three-dimensional configuration.
Disclosed are methods of enhancing recovery from joint surgery, comprising administering to the joint during surgery a composition comprising stem or progenitor cells in an amount effective to enhance recovery, and a pharmaceutically acceptable carrier.
An implant (10) is provided for replacing the proximal portion of a femur having a substantially intact natural femoral neck (42) and a lateral side opposite the femoral neck (42), with a bore (52) extending from the femoral neck (42) through a lateral side of the femur (40). The implant comprises a sleeve (14) having a flange (28) for engaging a proximally facing resected surface (50) of the neck surrounding the bore (52) in the femur and having a bore (26) with an inwardly tapered conical portion. A shaft member (12) having a longitudinal axis (22), a distal end (38), and a proximal end (18) is placed in the bore through the femur. The shaft member (12) has an intermediate conically tapered male portion (20) for coupling to the conically tapered bore (26) of the sleeve and a proximal end (18) having a conically tapered portion. A head member (16) having a distal end and a proximal substantially-spherical portion and a tapered recess (24) is configured for positioning in a natural or prosthetic hip socket.
Disclosed herein are devices and methods for securing soft tissue to a rigid structure such as bone. Various directional anchors that allow for increasing the stability the attachment of soft tissue to bone are described. Also described is a delivery system for use with the directional anchors that allows for open surgical or arthroscopic application of one embodiment of the device. A method for repairing rotator cuff tears is also described.
A medical implant component and a method for fabricating the same are provided. The medical implant component may comprise a substrate having a bearing portion, in which-at least the bearing portion has a coating of at least 25 micrometers of a predetermined material. The predetermined material of the coating may include chromium ceramic having a chromium component which releases less than approximately 7 parts of hexavalent chromium per billion parts of water solution when the medical implant component is immersed in approximately 500 milliliters of water for approximately one week at a temperature in a range of room temperature to just below a boiling point of the water at atmospheric pressure. The residual stress of the coating may be less than approximately 100,000 pounds per square inch. The chromium ceramic may be a chromium oxide, a chromium carbide, a chromium nitride, or a chromium boride, or any combination thereof.
A toggle bolt suture anchor kit and method of using the kit is presented. The kit comprises a toggle bolt suture anchor and a toggle bolt delivery device. The toggle bolt suture anchor has at least one toggle bolt delivery device interconnection means. The toggle bolt delivery device has at least one toggle bolt suture anchor interconnection means. The toggle bolt delivery device enables the toggle bolt suture anchor to be pushed into its final position.
A61B 17/03 - Surgical instruments, devices or methods, e.g. tourniquets for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith
An elongated rod (102) for insertion into a bowed canal of a bone such as a femoral medulla of a femur bone, wherein the canal is bowed in one plane. The rod has a longitudinal axis (104) disposed on a first plane and one or more cutouts (112) formed in at least a portion of a length of the rod and on opposite sides of the first plane. The rod is flexible along a second plane which is co-planar with the bowed canal plane and which is disposed on the longitudinal axis and perpendicular to the first plane.
In one embodiment, the present invention may be a method of forming a porous and/or dense article from metal powder (12), including adding to a mold a first feedstock comprising an agglomerated metal powder (12) and an agglomeration agent,- forming said first feedstock into a green state dense article (22); and removing said agglomeration agent. Furthermore, the present invention may include a second feedstock including an agglomerated metal powder (12), a space filling material and an agglomeration agent which may be formed into a green state porous article (21). The present invention also includes a dense and/or porous article (22 and 21) manufactured by various methods, as well as methods for creating the dense and porous feedstocks. Moreover, the present invention may include an article which may be a medical implant.
A prosthetic bearing component for use in joint replacement comprising a first element having a first magnetized layer (26) disposed thereon, configured with a pole (N) facing in a proximal direction, and a second element having a second magnetized layer (36) disposed thereon. The second element is configured to engage the first element, and the second magnetized layer (36) is configured with an equivalent pole (N) facing in a distal direction, whereby the pole (N) of the first magnetized layer (26) is positioned opposite the equivalent pole (N) of the second magnetized layer (36) such that a repellant force is created therebetween. The prosthetic bearing component further having a corrosion resistant layer (24, 34) covering the first and second magnetized layers (26, 36), and a wear resistant layer (22, 32) covering the corrosion resistant layer (24, 34) and forming a bearing surface of the prosthetic bearing component.
A61F 2/44 - Joints for the spine, e.g. vertebrae, spinal discs
C23C 14/35 - Sputtering by application of a magnetic field, e.g. magnetron sputtering
C23C 16/00 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 30/00 - Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
H01F 41/14 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for applying magnetic films to substrates
88.
MEDICAL DEVICE FOR REPAIR OF TISSUE AND METHOD FOR IMPLANTATION AND FIXATION
The present invention relates to medical devices for repairing tissue and more specifically to devices which facilitate tissue regeneration and to surgical methods for the implantation and fixation of such devices. In one embodiment, the medical device is an elongate conduit that includes a longitudinal bore extending therethrough to facilitate the transfer of blood from a vascular region of tissue to a tear or damaged area located in an avascular and/or semi-vascular region of tissue. A filament and/or filaments are attached to the conduit and are positioned to secure the conduit and fixate the adjacent tear walls in mutual engagement. In another embodiment, a series of conduits are connected via a filament and/or filaments to facilitate the implantation of multiple conduits.
The present invention relates to a method for repairing cartilage defects in a patient. According to the current invention, a porous material having at least expandable or compressible properties is implanted into a cartilage defect.
The present invention relates to an insertion system for medical devices and to surgical methods for the implantation of the same. In one embodiment, the implantation system includes a guide wire and an insertion tool. The insertion tool includes a longitudinal bore extending therethrough for receipt of the guide wire. A portion of the longitudinal bore of the insertion tool mates with the outer surface of the guide wire to rotationally lock the insertion tool and the guide wire. Additionally, the medical device to be inserted includes a longitudinal bore for receipt of the guide wire. Similarly, at least a portion of the longitudinal bore of the medical device may also mate with the outer surface of the guide wire to rotationally lock the medical device and the guide wire. The rotational locks allow for rotation of the insertion tool to result in corresponding rotation of the medical device via rotation of the guide wire. In another embodiment, the insertion system further includes a needle having an eyelet for receiving and positioning filaments attached to the medical device.
A cutting block (10) for use in a bone osteotomy procedure is disclosed, and includes a first cutting guide surface (204), a second cutting guide surface (208), and a third cutting guide surface (218). The first (204), second (208), and third (218) cutting guide surfaces are adapted to be temporarily affixed to a bone having a first side and a second side such that the first cutting guide surface (204) is disposed on the first side of the bone, and such that the second cutting guide surface (208) and third cutting guide surface (218) are disposed on the second side of the bone forming an angle therebetween.
patents
