Abstract

A hydraulic injection system is provided for injecting bone cement to a target anatomical location. The injection system can include a hydraulic injector configured to dispense a pressurized fluid, a cement cartridge assembly, and one or more conduits. The cement cartridge assembly includes at least one cement cartridge configured to receive the pressurized fluid and deliver the bone cement to the target anatomical location. The conduit is connected between the hydraulic injector and the cement cartridge assembly.

IPC Classes  ?

• A61B 17/88 - Methods or means for implanting or extracting internal fixation devices

Abstract

A bone fixation plate, comprises an elongated body contoured to conform to the anatomy of a clavicle, the elongated body comprising a head at a first end and a shaft extending therefrom to a second end, the second end further comprising a reduced diameter tapered tip configured to permit insertion of the elongate body through a minimally invasive incision formed adjacent the clavicle. The bone fixation plate also comprises a first plate hole extending through the shaft from a proximal face to a distal face, the first plate hole formed as a combination hole and a second plate hole extending through the head from the proximal face to the distal face, the second plate hole being threaded.

IPC Classes  ?

• A61B 17/68 - Internal fixation devices
• A61B 17/17 - Guides for drills
• A61B 17/90 - Guides therefor

Abstract

A device for treating bone in a living body includes (a) comprises an implant configured for attachment to a bone; (b) a first sensor measuring a strain on a first portion of the implant, the first portion of the implant being configured to be mechanically coupled to a weakened portion of a bone when the implant is coupled to the bone in a target position in combination; and (c) a second sensor measuring strain in a non-weakened portion of the bone.

IPC Classes  ?

• A61B 17/80 - Cortical plates
• A61F 2/28 - Bones

Abstract

A device includes an elongated body configured to be coupled to a bone stabilization implant so that, when the bone stabilization implant is mounted to a target bone, the body extends away from the bone stabilization implant at an angle selected so that the elongated body passes into a target portion of bone. The body defines a lumen therein extending to an opening in a distal end of the body. The device also includes a deploying member housed within the lumen of body for movement between a first position and a second position. In addition, the device includes a plurality of wires coupled to the deploying member so that movement of the deploying member through the lumen moves the wires between an insertion position and a deployed position in which the distal ends of the wires penetrate a portion of bone adjacent to the distal end of the body.

IPC Classes  ?

• A61B 17/72 - Intramedullary devices
• A61B 17/80 - Cortical plates
• A61B 17/86 - Pins or screws

Abstract

An apparatus (100) for locating a curvilinear cut in a bone comprises a jig body (102) and a first arm (104), a top end of which is rotatably coupleable to a first portion of the jig body in combination with a second arm, a top end of which is rotatably coupleable to a second portion of the jig body separated from the first portion and a saw guide (106) rotatably coupleable to the first arm, the saw guide including a bottom surface extending along a curve corresponding to a desired path through which a bone is to be cut, the saw guide including a locking feature receiving a bone fixation element which, in an operative configuration, is mounted in the bone to align the saw guide relative to the arm so that an operator may precisely align a desired axis of the saw guide with a longitudinal axis of the first arm.

IPC Classes  ?

• A61B 17/15 - Guides therefor

Abstract

A device (100) for treating fractures, comprises an intramedullary member (104) sized and shaped for insertion along a longitudinal axis of a bone within a medullary canal thereof, the intramedullary member including an opening (108) extending obliquely therethrough, the opening, when the intramedullary member is in a desired position within a bone, aligning with a desired axis along which an implant (102) is to be inserted into a bone, the intramedullary member including a channel (110) formed therewithin and opening to the opening and a locking mechanism (106) mounted in the channel, the locking mechanism including a locking abutting structure (105) extending into the opening in combination with an implant sized to be slidably received through the opening and inserted along the desired axis, the implant including a plurality of implant abutting structures aligned to engage the locking abutting structure preventing medial movement of the implant relative to the intramedullary member.

IPC Classes  ?

• A61B 17/78 - Devices for the head of the femur fixed by nails, pins or the like

Abstract

A device for treating a bone comprises a cable block including a first lumen extending from a first proximal opening in a proximal face of the cable block to a first distal opening in a distal face thereof, the first lumen being configured to receive a cerclage cable including an enlarged end. The cable block further includes a second lumen extending from a second proximal opening in the proximal face to a second distal opening in the distal face and being configured to receive a portion of the cable extending from the enlarged end while preventing the enlarged end from passing therethrough. The cable block includes a slot connecting distal portions of the first and second lumens and being at least as large as the second lumen in combination with a crimpable locking member including a channel configured to receive the portion of the cable extending from the enlarged end.

IPC Classes  ?

• A61B 17/82 - Internal fixation devices for bone cerclage
• A61B 17/84 - Fasteners therefor
• A61B 17/88 - Methods or means for implanting or extracting internal fixation devices

Abstract

A device for treating fractures, comprises a plate receiving structure including on a bone facing side thereof a recess sized and shaped to receive a fixation plate anchored in a desired position on a bone and a mating structure sized and located to engage a corresponding structure of the fixation plate to prevent relative movement between the fixation plate and the device in combination with at least one leg projecting laterally away from the recess, a first one of the at least one legs including a first fixation element receiving hole extending therethrough, the first leg being positioned and oriented so that, when the device is received on a fixation plate anchored to the bone in the desired position, the first fixation element receiving hole is aligned to pass a fixation element inserted therethrough into the bone without passing through a longitudinal axis of the medullary canal.

IPC Classes  ?

• A61B 17/80 - Cortical plates
• A61B 17/17 - Guides for drills
• A61B 17/86 - Pins or screws

Abstract

An improved tibial plateau leveling osteotomy plate is disclosed. The plate is contoured in its proximal head portion to more closely resemble the structure of the tibial bone segment that is cut and rotated during the procedure. The plate also preferably has screw holes in the proximal head portion that are machined through the pre-contoured proximal head portion and are designed to angle the screw in a targeted screw path with respect to the osteotomy.

IPC Classes  ?

• A61B 17/80 - Cortical plates

Abstract

A bone screw (1) is provided having first and second threaded portions (5, 7) of different diameter separated by a middle portion (6) that is unthreaded so that the bone screw may be inserted into a pair of adjacent bone fragments and used to compress the fragments together by driving the screw into a hole drilled in the fragments. An installation tool (15, 30 ,100) is also disclosed for threadably engaging one end of the bone screw and is used to initially drive the screw into the bone hole. Thereafter, a screwdriver (16, 50, 150) may be inserted through the tool and into engagement with a recess in the bone screw and may be used to drive the screw fully into the bone and to separate the bone screw from the installation tool. A method of installation is further provided.

IPC Classes  ?

• A61B 17/88 - Methods or means for implanting or extracting internal fixation devices
• A61B 17/86 - Pins or screws

Abstract

An adjustable fixation clamp having first and second clamp assemblies positioned about a shaft. The clamp assemblies may each have a pair of vise plates. Each pair of vise plates may define at least two receiving portions and insertion portions intersecting the receiving portions. The receiving portions of one clamp assembly may receive at least two fixation components such as screws, pins or wires. The receiving portions of the other clamp assembly may receive at least one connector such as a rod, bar and/or ring. A biasing structure may be positioned between the first and second clamp assemblies and may allow for the fixation components to be snapped into the receiving portions through the insertion portions. Two or more adjustable fixation clamps may be used to form an external fixation system. At least two screws, pins or wires may be inserted into bone and one of the clamp assemblies may be attached thereto. A guide may be used for insertion of screws, pins or wires into bone. The other clamp assembly may be connected to a rod, bar or ring. Thereafter, the clamp assemblies may be oriented relative to each other and locked in place.

IPC Classes  ?

• A61B 17/64 - Devices extending alongside the bones to be positioned
• F16B 7/04 - Clamping or clipping connections

Abstract

A driver has a tip that enables it to engage each one of a conventional hexagonal-head fastener and a conventional lobed-head fastener. The tip includes alternating flutes and crests. The crests are substantially flat to engage straight walls of a hexagonal-head. The flutes engage the lobed head of the fastener. A socket-type driver engages each type of conventional fastener. A fastener and a pair of socket-type fasteners have alternating flutes, which can be engaged by a conventional lobed-head driver, and crests or sidewall surfaces, which can be engaged by a conventional hexagonal-head driver.

IPC Classes  ?

• B25B 15/02 - Screwdrivers operated by rotating the handle
• B25B 13/06 - Spanners; Wrenches with rigid jaws of socket type
• F16B 23/00 - Specially-shaped heads of bolts or screws for rotations by a tool

Abstract

An outrigger for connecting to a clamp in an external fixation system comprises an elongated member, a distal end, a proximal end and a threaded portion on the distal end which includes a keyed portion. A moveable member is operably associated with the elongated member and is moveable along the elongated member. A slide lock is disposed about the elongated member and has a keyed portion and an engagement surface. The keyed portions are operably associated with each other to permit longitudinal movement of the slide lock along the length of the elongated member while preventing rotation, the engagement surface of the slide lock engages a portion of the clamp, and the engagement surface of the slide lock has a non-smooth texture and faces in a direction that is away from the movable member.

IPC Classes  ?

• A61B 17/64 - Devices extending alongside the bones to be positioned
• F16B 39/24 - Locking of screws, bolts, or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
• F16B 39/282 - Locking by means of special shape of work-engaging surfaces, e.g. notched or toothed nuts

Abstract

A clamp assembly for bone fixation elements including first and second clamp structures configured to engage first and second bone fixation elements, respectively. The first clamp structure may have a first spherically contoured bearing surface. The second clamp structure may have a second spherically contoured bearing surface seated in sliding contact with the first bearing surface. A spring-loaded mechanism may apply a spring force urging the bearing surfaces together to resist pivotal movement of the clamp structures relative to each other. The clamp assembly may be used with an assembly of fixation elements to create an external fixation frame.

IPC Classes  ?

• A61B 17/64 - Devices extending alongside the bones to be positioned
• A61B 17/00 - Surgical instruments, devices or methods, e.g. tourniquets

Abstract

A vascular catheter which comprises a catheter shaft, said catheter defining a first surface which is of undulating shape with a plurality of curved peaks, said peaks being spaced so that a second surface in contact with the first surface is spaced from at least a substantial portion of the first surface to reduce friction of the catheter.

IPC Classes  ?

• A61M 25/00 - Catheters; Hollow probes

Abstract

A tool is disclosed for use in distracting and compressing fractures of any of a variety of bones. In particular, the tool has a pair of engaging arms, one arm having a hook element to engage a bone plate connected to one side of a fracture, and the other arm having at least one recess for engaging a head of a bone screw or guide wire connected to the other side of the fracture. Actuation of the tool causes the opposing bone segments of the fracture to be pushed apart or drawn together, depending on whether the tool handles are squeezed together or pulled apart. The tool may have a scissors joint that allows the ends of the tool to maintain a parallel alignment during operation, thus reducing the chances for misalignment of the bone segments during operation.

IPC Classes  ?

• A61B 17/56 - Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
• A61B 17/80 - Cortical plates