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91 results about "Joint arthroplasty" patented technology
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Total joint arthroplasty system
ActiveUS20090131941A1Precise alignmentImprove visualizationMedical simulationProgramme controlJoint arthroplastyTotal hip arthroplasty
A method and system for performing a total joint arthroplasty procedure on a patient's damaged bone region. A CT image or other suitable image is formed of the damaged bone surfaces, and location coordinate values (xn,yn,zn) are determined for a selected sequence of bone surface locations using the CT image data. A mathematical model z=f(x,y) of a surface that accurately matches the bone surface coordinates at the selected bone spice locations, or matches surface normal vector components at selected bone surface locations, is determined. The model provides a production file from which a cutting jig and an implant device (optional), each patient-specific and having controllable alignment, are fabricated for the damaged bone by automated processing. At this point, the patient is cut open (once), the cutting jig and a cutting instrument are used to remove a selected portion of the bone and to provide an exposed planar surface, the implant device is optionally secured to and aligned with the remainder of the bone, and the patient's incision is promptly repaired.
Owner:HOWMEDICA OSTEONICS CORP
Patient Selectable Joint Arthroplasty Devices and Surgical Tools
InactiveUS20080281426A1Accurate placementAdditive manufacturing apparatusSurgical navigation systemsJoint arthroplastyTarsal Joint
Owner:CONFORMIS
Joint Arthroplasty Devices
A mobile bearing implant includes a first component. The first component includes a bone facing surface for engaging one of a substantially uncut articular cartilage surface and a substantially uncut subchondral bone surface. The bone facing surface substantially matches the one of the articular cartilage surface and the subchondral bone surface. The mobile bearing implant further includes an external surface. A bearing component has a first surface for slidingly engaging the external surface of the first component, and a second surface for engaging at least one of a second component, bone, and cartilage.
Owner:CONFORMIS
Patient Selectable Joint Arthroplasty Devices and Surgical Tools
ActiveUS20080281329A1Accurate placementAdditive manufacturing apparatusSurgical navigation systemsJoint arthroplastySacroiliac joint
A patellar 3-D guidance tool includes a template. The template includes at least one contact surface for engaging a surface of the patella. The at least one contact surface substantially conforms with the surface associated with the patellar. At least one guide aperture directs movement of a surgical instrument, wherein the shape and / or position of the guide aperture is based, at least in part, on three or more anatomic reference points associated with the patellar.
Owner:CONFORMIS
Joint arthroplasty devices formed in situ
InactiveUS20070250169A1Improve accuracyImage analysisWrist jointsArticular surfacesJoint arthroplasty
Disclosed herein are methods and devices for repairing articular surfaces. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function.
Owner:CONFORMIS
Arthroplasty sizing gauge
A gauge (10) for measuring bone contour (12) of a bone(4) for use in joint arthroplasty is provided. The gauge (10) includes a body (14) and a probe (16). The body (14) has a body contact portion of the body (14) for contact with the bone (4). The probe (16) is movably positional with respect to the body (14). The probe (16) includes a probe contact portion of the probe (16) for contact with the bone (4). The relative position of the probe (16) with respect to the body (14) is indicative of the bone contour (12) of the bone (4).
Owner:DEPUY PROD INC
Total joint replacement component positioning as predetermined distance from center of rotation of the joint using pinless navigation
InactiveUS20080146969A1Precise positioningAccurate measurementSurgical navigation systemsPerson identificationArticular surfacesArticular surface
A system and method used in total joint arthroplasty of a ball and socket joint such as hip and shoulder replacements for accurate positioning of a prosthesis through pinless surgical navigation during replacement surgery according to a predetermined distance from the center of rotation of the replaced joint and / or articular surface to obtain the proper length, offset, and biomechanics of the replaced joint.
Owner:KURTZ WILLIAM B
Modular humeral head resurfacing system
A two piece humeral component for use in joint arthroplasty which is adapted to be implanted into a joint and engaged by a socket component of the joint. The joint component includes a body having a first articulating surface and a second medial surface opposite the first articulating surface. The first articulating surface is adapted to be engaged by the socket and the second medial surface is adapted to be secured to mounting portion. The mounting portion has a first surface and a second medial surface. The first surface is adapted to be fixably engaged to the second mounting portion of the humeral component. The second medial surface is adapted to be secured to the humerus. A peg which has a first end adapted to engage a cavity found in the humerus is disposed on the mounting portion's second medial surface.
Owner:BIOMET MFG CORP
Joint Arthroplasty Kit and Method
A method for providing joint arthroplasty includes providing a gauge for making a measurement of the contour of a long bone, making a measurement of the contour of a long bone with the gauge, providing a plurality of joint prostheses, selecting one of the plurality of joint prostheses based upon the measurement of the contour, resecting a long bone, and implanting the selected one prosthesis onto the long bone. A kit is also provided for selecting one of a plurality of joint implants for use in joint arthroplasty on a bone. The kit includes a first gauge and a second gauge.
Owner:DEPUY PROD INC
Modified system and method for intraoperative tension assessment during joint arthroplasty
A modified system for assessing tension intraoperatively during joint arthroplasty includes a discrete sensor array, protector and trial. The protector is mechanically connected to the joint trial and covers the sensor array to protect it from wear. The sensor array can be positively located to prevent it from moving during use. In assembly of the modified system, the sensor array and protector are sterilized as discrete elements. After sterilization, the protector is removably attached to one of the trials with the sensor array substantially covered by the protector to protect the sensor from wear.
Owner:DEPUY PROD INC
Device and method of spacer and trial design during joint arthroplasty
Owner:ORTHO SENSING TECH
Modular humeral head resurfacing system
A two piece humeral component for use in joint arthroplasty which is adapted to be implanted into a joint and engaged by a socket component of the joint. The joint component includes a body having a first articulating surface and a second medial surface opposite the first articulating surface. The first articulating surface is adapted to be engaged by the socket and the second medial surface is adapted to be secured to mounting portion. The mounting portion has a first surface and a second medial surface. The first surface is adapted to be fixably engaged to the second mounting portion of the humeral component. The second medial surface is adapted to be secured to the humerus. A peg which has a first end adapted to engage a cavity found in the humerus is disposed on the mounting portion's second medial surface.
Owner:BIOMET MFG CORP
Surgical implantable stabilizer sling for basal joint arthroplasty
InactiveUS20100106254A1Minimizing proximal migrationSimpler and less invasiveSuture equipmentsFinger jointsJoint arthroplastyEnarthrosis
The concepts disclosed herein offer a new simple and reliable reconstructive option for the treatment of first carpal-metacarpal joint (basal joint) arthritis and consists of an intra-articular basal joint stabilizer sling combined with a surgical method of implantation.
Owner:DELSIGNORE JEANNE L
Joint Arthroplasty Devices Having Articulating Members
InactiveUS20080109081A1Improve wear resistanceAvoid Strength LossAnkle jointsJoint implantsJoint arthroplastyPolyether ether ketone
Articulating devices for replacing damaged or degenerated weight bearing joints are provided. The devices may have two or more surfaces that articulate against one another that are coated or fully formed of PEEK or similar materials to provide improved wear capabilities while maintaining sufficient strength to operate in a weight bearing capacity.
Owner:PIONEER SURGICAL TECH INC
Modular tapered reamer for bone preparation and associated method
A kit (400) for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8) with the use of a driver (10) and to assist in performing a trial reduction. The reamer (2) includes a first portion (14) for placement at least partially in the cavity (4) of the long bone (8) and a second portion (16) operably connected to the first portion (14). The reamer (2) is removably connected to the driver (10) to rotate the reamer (2). The trial (12) is removably attachable to the reamer (2).
Owner:DEPUY PROD INC
Joint Arthroplasty Devices
A mobile bearing implant includes a first component. The first component includes a bone facing surface for engaging one of a substantially uncut articular cartilage surface and a substantially uncut subchondral bone surface. The bone facing surface substantially matches the one of the articular cartilage surface and the subchondral bone surface. The mobile bearing implant further includes an external surface. A bearing component has a first surface for slidingly engaging the external surface of the first component, and a second surface for engaging at least one of a second component, bone, and cartilage.
Owner:CONFORMIS
Edge-Matched Articular Implant
A method of joint arthroplasty includes obtaining an image of at least a portion of the tibial plateau. An outer periphery of at least a portion of the tibial plateau is derived based, at least in part, on the image. An implant is provided for the tibial plateau, the implant having a periphery that includes an outer edge that substantially matches the derived outer periphery of the tibial plateau.
Owner:CONFORMIS
Support for locating instrument guides
InactiveUS20070100346A1Efficiently and accurately alignmentEfficiently and accurately and orientationDiagnosticsSurgical navigation systemsJoint arthroplastyComputer-assisted surgery
A surgical instrument system includes a cutting instrument, an anchoring structure, a guide structure and an articulating linkage. The anchoring structure can be fixed to a reference or benchmark, such as a location on the patient's bone. The articulating linkage connects the anchoring structure to the guide structure and includes a plurality of lockage ball joints arranged in series. Each ball joint provides for freedom of movement about three axes of rotation. The articulating linkage may include other structures allowing for additional rotational and translational degrees of freedom of movement for the guide structure with respect to the reference or benchmark. The system is useful in positioning, aligning and orienting a cutting block in joint arthroplasty, and may be useful in conjunction with computer assisted surgery. The system may also include computer navigation trackers for use in such computer assisted surgery.
Owner:DEPUY PROD INC
Alignment device for modular implants and method
InactiveUS7022141B2Independent controlReadily apparentDiagnosticsSurgeryJoint arthroplastyProsthesis
An instrument (200) for at least one of replicating and measuring the angular orientation of a first component (54) of a prosthesis (51) to a second component (52) of the prosthesis (51) for use in joint arthroplasty. The instrument (200) includes a first member (202) for cooperation with the first component (54), a second member (210) for cooperation with the second component (52), and a feature (220). The feature (220) cooperates with the first member (202) and the second member (210) for at least one of replicating and measuring the relative angular orientation of the first component (54) with respect to the second component (52).
Owner:DEPUY PROD INC
Method for improved rotational alignment in joint arthroplasty
InactiveUS20080249394A1Improve accuracySurgical navigation systemsDiagnostic recording/measuringTibiaJoint arthroplasty
A method for improved rotational alignment of the bones in joint surgery is described. The method involves the tracking of the relative motion of a third bone in with respect to the movement of the first and second bone. In one aspect of the invention, the motion of the patella is used to derive the axis of rotation of the femoral and tibial components in total knee arthroplasty, either alone or in combination with other techniques.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV
Prosthetic having a modular soft tissue fixation mechanism
InactiveUS7175664B1Components reduced eliminatedDisadvantages and reduced eliminatedJoint implantsFemoral headsJoint arthroplastyModularity
A multi-piece prosthetic component for use in joint arthroplasty which is adapted to be implanted into a joint and engaged by a joint socket. The modular prosthetic component includes body which is at least partially implantable within a bone, said body having an external surface. A mechanism for coupling soft tissue to the exterior surface of the implant is provided. The mechanism has an attachment mechanism which is operable to prevent movement of the soft tissue attachment mechanism with respect to the body.
Owner:BIOMET MFG CORP
Prosthetic implant, trial and associated method
InactiveUS7338498B2Shorten the timeLow costJoint implantsFemoral headsJoint arthroplastyProsthesis Implantation
A kit (100) for use in performing joint arthroplasty on a head of a long bone (4) is provided. The kit (100) includes a first trial (102) including a first trial articulating surface (106) and an opposed first trial mounting surface (108) having a first trial location feature (110). The kit (100) also includes a second trial (104) including a second trial articulating surface (112) and an opposed second trial mounting surface (114) having a second trial location feature (116). The first trial articulating surface (106) and the second trial articulating surface (112) have different geometries and the first trial location feature (110) and the second trial location feature (116) have substantially identical geometries whereby different trials may be used with a common location feature.
Owner:DEPUY PROD INC
Prosthetic device and method of making the same
A method of making a non-modular prosthetic device for a joint arthroplasty. The method comprises molding a polymer interlayer between a porous metal structure and a polymer insert, wherein the insert generally comprises conventional or cross-linked ultra high molecular weight polyethylene (“UHMWPE”).
Owner:ZIMMER TECH INC
Assembly tool for modular implants and associated method
InactiveUS7582092B2Easy to holdSimple optimum ergonomics.Joint implantsFemoral headsJoint arthroplastyProsthesis
Owner:DEPUY PROD INC
Assembly tool for modular implants, kit and associated method
ActiveUS20070123908A1Easy to holdSimple optimum ergonomicsJoint implantsFemoral headsJoint arthroplastyProsthesis
An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty is provided. The tool includes a first member in contact with the first component and a second member connected to the second component. The first member defines a first member longitudinal axis. The first member and the second member provide for the assembly of the first component of the prosthesis to the second component of the prosthesis. The second member provides relative motion of the second member with respect to the first member when the second member is rotated relative to the first member about the first member longitudinal axis. The first member and the second member have relative motion features adapted to reduce friction that cooperate with each other to provide the relative motion of the first member with respect to the second member.
Owner:DEPUY SYNTHES PROD INC
Assembly tool for modular implants and associated method
InactiveUS7297166B2Easy to holdSimple optimum ergonomicsJoint implantsFemoral headsJoint arthroplastyProsthesis
An assembly tool (1) for assembly of a first component (2) of a prosthesis (4) to a second component (6) of the prosthesis (4) for use in joint arthroplasty is provided. The tool (1) includes a first member (8) operably associated with the first component (2). The first member (8) defines a first member longitudinal axis (10) of the first member (8). The tool also includes a second member (12) operably associated with the second component (6). The second member (12) defines a second member longitudinal axis (14) of the second member (12). The second member (12) is adapted to provide relative motion of the second member (12) with respect to the first member (8) when the second member (12) is rotated relative to the first member (8) about the second member longitudinal axis (14).
Owner:DEPUY PROD INC
Extended articulation orthopaedic implant and associated method
InactiveUS7517364B2Low friction bearing surfaceImprove pronunciationJoint implantsFemoral headsJoint arthroplastySacroiliac joint
A prosthesis (20) for use in performing joint arthroplasty is provided. The prosthesis (20) is to be fitted to a long bone (3). The prosthesis includes a first body (22) having a first body articulating surface (24) defining a generally circular outer periphery (26) of the first body articulating surface (24). The first body (22) has a support surface (28) opposed to the articulating surface (24). The support surface (28) is adapted to receive the head of the long bone (3). The prosthesis (20) also includes a second body (30) operably associated with the first body (22). The second body (30) has a second body articulating surface (32) extending from a portion of the circular outer periphery (26) of the first body articulating surface (24).
Owner:DEPUY SYNTHES PROD INC
Modular taper assembly device
An assembly tool for assembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a housing defining a housing longitudinal axis thereof. An internal component is also provided and is connected to the second component and includes an actuating device and an actuator rod defining a second longitudinal axis that is coexistent with the housing longitudinal axis. The internal component is adapted to provide relative motion of the internal component with respect to the housing when the actuating device is moved relative to the housing in at least a direction transverse to the housing longitudinal axis and the actuator rod of the internal component is moved relative to the housing in a direction parallel to the housing longitudinal axis. The motion of the internal component is utilized to effect the motion of the first component with respect to the second component.
Owner:DEPUY SYNTHES PROD INC
Apparatus, system and method for intraoperative performance analysis during joint arthroplasty
An instrumented joint trial has a polymer layer defining a curved contoured articulating surface. A curved contoured sensor array is positioned below the polymer layer. Other components of the joint trial, such as a body with a proximal curved contoured surface, are positioned below the sensor array. The device can be made by forming a sheet of the polymer over the curved contoured surface of the joint trial body and then adhering the sensor array to one curved contoured surface of the formed polymer. The sensor array conforms to the shape of the formed polymer layer. The system includes a mating joint trial. The device may be used by temporarily attaching the joint trial to a resected portion of bone and then articulating the joint with the instrumented trial in place.
Owner:DEPUY PROD INC
Punch, implant and associated method
InactiveUS20060149390A1Shorten the timeMeet cost performance requirementsBone implantDiagnosticsJoint arthroplastyMedicine
An instrument for preparing a cavity for a stem of a prosthetic implant for use in performing joint arthroplasty on a head of a long bone is provided. The instrument includes a body and a punch extending from the body. The punch includes a portion of the punch having a shape similar to the stem of the implant.
Owner:DEPUY PROD INC
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