Wrist Bone Patents (Class 623/21.12)
  • Patent number: 9468533
    Abstract: A method of reconstructing a patient's wrist. A prosthesis is provided having proximal and distal assemblies. The distal assembly has a body with a U-shaped portion. The proximal and distal assemblies have surfaces that cooperate to guide movement between the proximal and distal assemblies. The proximal assembly is fixed to the patient's radius. The hand is prepared for placement of the distal assembly by removing cartilage against a plurality of carpal bones without significantly altering the configuration of stable volume of at least one of the patient's carpal bones in the first carpal row. The U-shaped portion of the body is placed against a plurality of bones in the first carpal row. Separate locations on the body are secured to a plurality of carpal bones.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 18, 2016
    Assignee: TriMed, Inc.
    Inventors: Philippe Saffar, Anders Hakansson
  • Patent number: 9186256
    Abstract: Wrists implants and methods are disclosed. A wrist implant can advantageously allow motion with respect to a reconstructed wrist to more closely resemble natural motion. For example, in one aspect, motion can include movement in more than one direction to allow for flexion/extension, rotational, and translational movement. The wrist implant can include a radial implant component and/or a carpal implant component with a bearing component or member disposed therebetween. The radial implant can have a radial articulation surface having at least one variable radius of curvature and/or a tray having a variable width.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: November 17, 2015
    Assignee: Integra LifeSciences Corporation
    Inventors: Jason Shultz, Brian Adams
  • Publication number: 20150142125
    Abstract: An orthopaedic implant for use with a fastener having at least one of threads and grooves includes a body defining a long axis. The body includes an inner wall defining an elongated slot. The inner wall includes a pair of opposing walls and a single projection disposed on the inner wall. When the fastener is inserted into the slot, the single projection slidably fits within a groove of the fastener to limit sliding of the implant over the fastener along an axis substantially transverse to the long axis and to permit sliding of the implant over the fastener along the long axis.
    Type: Application
    Filed: November 30, 2012
    Publication date: May 21, 2015
    Inventors: Kohsuke Watanabe, Paul Tornetta
  • Publication number: 20150100132
    Abstract: A method of implanting a wrist prosthesis in a distal portion of an ulna for articulation at least near a radius and a carpal complex of a wrist joint is provided. The method can include forming an incision near a distal portion of the radius and ulna joint. The method can also include resecting a distal portion of the ulna and positioning a stage member in a fixed position relative to the ulna. The method can further include sliding a bearing member relative to the stage member to hold the bearing member relative to the stage member and the distal ulna. The method can also include fixing the bearing member to a bearing fixation member extending from the stage member, and attaching soft tissue to at least one of the bearing member and the stage member.
    Type: Application
    Filed: December 8, 2014
    Publication date: April 9, 2015
    Inventors: Thomas M. Vanasse, Benjamin P. Heilman, Andrew K. Palmer
  • Patent number: 8940055
    Abstract: A method of implanting a distal radial wrist implant relative to a host radius while salvaging at least portions of fractured radial bone can include, determining a size of a host radius. A distal radial component can be selected based on the determination. The distal radial component can have a body that includes a first connection portion. A stem portion can be selected based on the determination. The stem portion can have a second connection portion. Portions of the fractured radial bone can be located around the body. The portions of the fractured radial bone can be secured relative to the body. The first connection portion of the distal radial component can be coupled with the second connection portion of the stem portion. The distal radial implant can be implanted relative to the host radius.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 27, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventors: Thomas M. Vanasse, Benjamin P. Heilman, Andrew K. Palmer
  • Publication number: 20150005891
    Abstract: A spacer for implantation into a subject is provided that includes a sterilized piece of cartilaginous allograft tissue. The piece forms a Y-shape with a base adapted to insert within a first carpo-metacarpal joint or carpo-metatarsal joint of the subject, and has a first area adapted to secure to a trapezium bone adjoining the joint, and a second arm adapted to secure to a proximal metacarpal or metatarsal bone adjoining the joint. A procedure for implanting the spacer includes exposing a target joint and abrading a bone surface interior to the joint to induce surface bleeding. The spacer base is then inserted into the joint. The spacer first arm is adhered to the first bone of the joint and the spacer second arm is adhered to the second bone of the joint. A kit is also provided for surgical implantation of the spacer.
    Type: Application
    Filed: August 27, 2014
    Publication date: January 1, 2015
    Inventor: Paul S. Shapiro
  • Patent number: 8920509
    Abstract: A prosthesis system for replacement of a head portion of a proximal radius can include an articulation component having a first connection portion. A first head component can have a second connection portion that connects to the first connection portion. A second head component can have a third connection portion that connects to the first connection portion. The second head component can have a distinct dimension from the first head component. A stem component can include a fourth connection portion that connects with either of the first or second head components. The stem component can have a stem anchoring portion that connects to the radius.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: December 30, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nicholas J. Katrana, Thomas M. Vanasse, Adam Finley, William J. Hamman, Robert Metzger, Bryce A. Isch, Christopher Harris Martin
  • Publication number: 20140364957
    Abstract: A system and method of implanting a distal wrist implant relative to a host bone is presented. A distal radial component having a body including a first connection portion couplable to a stem is coupled to a second prosthetic coupled to a medial surface of the body. The second prosthetic replaces at least a portion of the sigmoid notch.
    Type: Application
    Filed: August 26, 2014
    Publication date: December 11, 2014
    Inventor: Andrew K. Palmer
  • Publication number: 20140358243
    Abstract: A method of reconstructing a patient's wrist. A prosthesis is provided having proximal and distal assemblies. The distal assembly has a body with a U-shaped portion. The proximal and distal assemblies have surfaces that cooperate to guide movement between the proximal and distal assemblies. The proximal assembly is fixed to the patient's radius. The hand is prepared for placement of the distal assembly by removing cartilage against a plurality of carpal bones without significantly altering the configuration of stable volume of at least one of the patient's carpal bones in the first carpal row. The U-shaped portion of the body is placed against a plurality of bones in the first carpal row. Separate locations on the body are secured to a plurality of carpal bones.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: TriMed, Inc.
    Inventors: Philippe Saffar, Anders Hakansson
  • Publication number: 20140358244
    Abstract: A prosthesis having: a) a first assembly with a first base portion to be placed against, and operatively secured to, a patient's first bone; and b) a second assembly with a second base portion to be placed against, and operatively secured to, a patient's second bone. The first and second assemblies respectively define first and second surfaces that cooperate with each other to guide articulated movement between the first and second bones. At least one of the first and second base portions is configured to cooperate with a separate first component defining at least a part of one of the first and second surfaces to maintain the first component in an operative state. A second component is configured to define at least a part of the one of the first and second surfaces and can be placed in an operative state selectively in place of the first component.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 4, 2014
    Applicant: TriMed, Inc.
    Inventor: Anders Hakansson
  • Patent number: 8852285
    Abstract: Among other things, there are disclosed embodiments of implants for repairing or relieving damage to the distal radioulnar joint. A component for replacing at least part of the ulnar head includes a concave surface for accommodating a convex surface of a component for attachment to the radius, e.g. in the sigmoid notch of the radius.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: October 7, 2014
    Inventor: Jeffrey A Greenberg
  • Patent number: 8845750
    Abstract: A joint resurfacing prosthetic implant system is disclosed having an anatomically-shaped implant to replace a joint at a pedal digit or finger, including a head having an elliptical bearing surface disposed for engaging the end of an adjacent bone and a seating surface opposite the bearing surface, an elongated stem extending distally from the seating surface, and a flange on the circumference of the device and extending distally from the seating surface. The flange includes one or more portals and a removed section configured to avoid impinging upon a tendon during and after implantation of the prosthetic. A specialized tool is also provided to facilitate the resection of the bone for implantation. The specialized tool includes an elliptical template having a cutting edge and a center insert that is sized and configured to match a reamer used to bore into the bone for insertion of the implant.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: September 30, 2014
    Inventor: Jerome A. Slavitt
  • Patent number: 8840674
    Abstract: A system and method of implanting a distal wrist implant relative to a host bone is presented. A distal radial component having a body including a first connection portion couplable to a stem is coupled to a second prosthetic coupled to a medial surface of the body. The second prosthetic replaces at least a portion of the sigmoid notch.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: September 23, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventor: Andrew K. Palmer
  • Publication number: 20140277552
    Abstract: Devices and methods are disclosed for joint replacement.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Albert H. Burstein, Jonathan T. Deland
  • Publication number: 20140277553
    Abstract: Embodiments of the invention may provide a stem and a head and a liner that can be assembled together to form an implant, such as may be used in repair of the distal ulnoradial joint. A given head and liner and stem may be assembled to each other in more than one configuration, providing more than one possible external shape for a given set of stem and head and liner. The head may be non-symmetric about its midplane and may be open at both ends. A kit may contain more than one head assemblable to a given stem with an intermediate liner, with the various heads providing various different external shapes of the device.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicant: Ascension Orthopedics, Inc.
    Inventors: Jerome J. Klawitter, Monti R. Gourley
  • Patent number: 8821581
    Abstract: A prosthetic wrist can replace a portion of an anatomical wrist. A bone replacing portion can be provided that also includes an augment member to assist in fixation of the bone portion or the prosthesis to the bone. The various prosthesis embodiments can allow for a hemi- or total, or revision wrist arthroplasty. Modular portions can allow for intraopertative customization.
    Type: Grant
    Filed: September 7, 2006
    Date of Patent: September 2, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Brian K. Berelsman, James W. Strickland, Andrew K. Palmer, Craig J. Allebach, Thomas J. Graham, Russell M. Parrott
  • Publication number: 20140194999
    Abstract: Devices, implements and methods are provided for performing trapezioplasty of the osteoarthritic trapezium. Once a palmar osteophyte has been removed from the trapezium bone, a trapezial rasp is used to shape the central portion of the trapezium bone into an initial saddle shape. A contouring tool having a double curvature reverse saddle shape is used to contour the trapezium bone into a final, smooth saddle shape.
    Type: Application
    Filed: March 11, 2014
    Publication date: July 10, 2014
    Applicant: SKELETAL DYNAMICS LLC
    Inventors: JORGE L. ORBAY, THOMAS H. NORMAN
  • Publication number: 20140180420
    Abstract: Fibrocartilage implants characterized by circumferential fiber networks embedded in arcuate or torroidal scaffolds with orthogonal fiber networks embedded therein to prevent separation of the circumferential fiber networks. The fiber networks convert axial compressive forces on the scaffolds to tensile loads on the circumferential fibers. Artificial knee meniscus and vertebral disc implants are disclosed, as well as articular disc implants for joints such as the temporomandibular joint and wrist. Methods for implanting the fibrocartilage devices are also disclosed.
    Type: Application
    Filed: December 31, 2013
    Publication date: June 26, 2014
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Charles J. Gatt, Eric A. Balint, Michael G. Dunn
  • Publication number: 20140148912
    Abstract: A prosthesis for implantation in an animal or human subject, said prosthesis comprising a first component for attaching to a radius bone in use and a s second component for attaching to an ulna bone in use, the prosthesis further comprising a linage for linking the first and second components substantially rigidly with respect to one another in use. Preferably the prosthesis is configured to allow the linkage to move relative to the first and/or second components and be retained substantially rigidly at a selected position in normal use, such that the first and second components can be retained substantially rigidly relative to one another in normal use.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 29, 2014
    Applicant: FITZBIONICS LIMITED
    Inventors: Noel Fitzpatrick, Gordon Blunn, Jayantilal Mohanlal Meswania
  • Publication number: 20140121779
    Abstract: A bone joint repair and replacement assembly. A first portion comprising a bone plate is configured to attach to a distal or proximal end of a bone proximate the joint, generally coaxially with an axis defined by the bone. A second portion comprising an articular surface is configured to attach to the first portion, generally normal with respect to the axis, and inserted into the joint. Although versions of the assembly can be configured for use with several different pivotal joints, the invention is particularly suitable for full or partial replacement of an elbow, wherein the articular surface is pivotally attached to the first portion. Another embodiment of the invention is provided to repair a fractured bone head proximate the joint, and still another embodiment of the invention is provided to repair rotator cuff-related shoulder injuries.
    Type: Application
    Filed: October 29, 2012
    Publication date: May 1, 2014
    Inventor: Eduardo Gonzalez-Hernandez
  • Publication number: 20140074247
    Abstract: The implant (20) is shaped to generally mimic the form of the trapezium (12), or portions thereof. For example, the implant optionally defines a first metacarpal projection (32) and a second metacarpal projection (34) spaced from the first metacarpal projection to form a C-type, or cuff-type receptacle (36) for receiving the first metacarpal (15) such as the first and second metacarpal projections extend along either side of the first metacarpal. The receptacle optionally acts as a support surface (36A) for the first metacarpal during articulation thereof. In some embodiments, the first metacarpal projection is configured to extend adjacent the end portion of the first metacarpal that is adjacent the CMC joint (10) and the second metacarpal projection is configured to extend into the space (19) between the end portions of the first and second metacarpals (15, 18), thereby helping maintain the intermetacarpal spacing between the first and second metacarpals.
    Type: Application
    Filed: May 7, 2010
    Publication date: March 13, 2014
    Inventors: Kevin L. Ohashi, Donald E. Running, Robert J. Ball, Randip R. Bindra, John J. Fernandez, Dale R. Peterson
  • Publication number: 20140058524
    Abstract: An osteoconductive vascularized porous metal implant device and method for implanting the vascularized device are described herein. The vascularized implant device comprises an implant which is porous titanium, tantalum or other metal which is biocompatible with the mammalian body and at least one vascular conduit which connects the porous implant to an animal vasculature, such as a human vascular system.
    Type: Application
    Filed: March 11, 2013
    Publication date: February 27, 2014
    Inventor: Robert R. Gray
  • Publication number: 20140018930
    Abstract: A prosthesis for primary artrodhesis can be used for artroplasty and a prosthesis for artroplasty comprises members for artrodhesis. The prosthesis (1b) for primary artrodhesis comprises a locking member (33b) with an attachment portion (16b) which is insertable into a hole (8b) in a first attachment member (4b) of the prosthesis for location of the locking member therein, and a lockable member (34b) integral with a second attachment member (5b) of the prosthesis. The lockable member (34b) is configured for adjustable setting thereof relative to the locking member (33b) and for fixation thereof, in set position, to the locking member. Alternatively, the lockable member comprises an attachment portion which is insertable into a hole in the second attachment member for location of the lockable member therein.
    Type: Application
    Filed: December 27, 2011
    Publication date: January 16, 2014
    Applicant: Swemac Innovation AB
    Inventor: Lars Oster
  • Publication number: 20130338784
    Abstract: A carpometacarpal prosthesis system generally includes a trapezial implant for replacing an excised trapezium within a human hand and a component stem implant for replacing a partially excised first metacarpal. The component stem implant is adapted to be press fit within the medullary cavity of the partially excised first metacarpal bone of the human hand; the component stem when so implanted is adapted to effect universal movement of the first metacarpal bone relative to the trapezial implant thereby providing a restructured thumb metacarpal joint that restores substantially normal thumb function in terms of strength and flexibility.
    Type: Application
    Filed: June 19, 2012
    Publication date: December 19, 2013
    Inventor: CHRISTOPHER STERLING PALLIA
  • Publication number: 20130331947
    Abstract: A fusion implant and fusion members for fusing target bones of an upper extremity. The fusion implant including internally threaded apertures of a first thread lead, and the fusion members including threading of the first thread lead and threading of a second thread lead that is less than the first thread lead. The fusion implant and a targeting instrument being configured to couple to one another in a predefined orientation. The predetermined orientation resulting in alignment of aspects of the fusion implant with aspects of the targeting instrument. A guide clamp for facilitating forming of an implant cavity in adjacent bones for implantation of the fusion implant therein. A surgical method for facilitating fusion of adjacent target bones utilizing a fusion implant, fusion members, a targeting instrument and a guide clamp to reduce space between the adjacent bones such that they at least abut one another.
    Type: Application
    Filed: January 26, 2012
    Publication date: December 12, 2013
    Applicant: DEL PALMA ORTHOPEDICS, LLC
    Inventors: Gabriel Surma, Pamela C. Guzman, Mary Pile, Dale Dellacqua, Andrew K. Palmer
  • Patent number: 8597363
    Abstract: The prosthetic material for replacing at least one portion of the radial glenoid of a radius includes a plate (2) extended by an endpiece (3) and a set of screws (4) for fastening the plate (2) on the receiving bone material (R). The plate (2) has a planar body (7) extended by an extension (5) forming a portion of the endpiece (3) and having an inner face (5?) extending in a general plane (D) that is angularly offset relative to the plane (P) of the plate body (7). This extension (5) co-operates with a fitted panel (6) forming the other portion of the endpiece (3) and having an outer face (3?) reproducing at least approximately at least a portion of the surface of the radial glenoid of the radius. The fitted panel is secured on the support extension (5) via a slideway structure (11, 13).
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: December 3, 2013
    Assignee: D.L.P.
    Inventors: Philippe Liverneaux, Jean-Pierre Podgorski, Gregoire Larche
  • Publication number: 20130304223
    Abstract: An implant couples a first bone of a hand to a second bone of the hand. The implant includes a body that defines a median plane. The body also defines a first joint surface having a first central region that articulates with the first bone. The body further defines a second joint surface having a second central region that articulates with the second bone, and the second central region is disposed on an opposite side of the median plane of the body relative to the first central region. The first and second central regions correspond to profiles of first and second axial segments, respectively, the first and second axial segments are each one of a cylinder, a cone and a torus and are centered on first and second axes, respectively, and the first and second axes, as projected on the median plane, are substantially perpendicular to each other.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventors: Michel Hassler, Philippe Bellemere
  • Publication number: 20130297033
    Abstract: System, including methods, apparatus, and kits, for replacement of at least one surface region of a distal radioulnar joint using at least one prosthesis. In some embodiments, the system may provide restoration of normal, unconstrained biomechanics of the joint, which may preserve rotation and translation and ensure durability of the joint.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 7, 2013
    Inventors: William B. Kleinman, Randall J. Huebner, Larry W. Ehmke, Marcus Mohr
  • Patent number: 8551180
    Abstract: A method of implanting a prosthesis relative to a carpal complex of a wrist is provided. The method can include providing a carpal implant having a body including an ulnar flange and a radial flange, and locating a bone abutment surface of the ulnar flange against a triquetrum of the carpal complex. The method can also include locating a bone abutment surface of the radial flange against a scaphoid of the carpal complex, and locating a first dorsal flange extending from the ulnar flange against a posterior surface of the triquetrum.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: October 8, 2013
    Assignee: Biomet Manufacturing, LLC
    Inventors: Jason M. Shultz, Kevin T. Stone, Andrew K. Palmer
  • Publication number: 20130245778
    Abstract: Among other things, there are disclosed embodiments of implants for repairing or relieving damage to the distal radioulnar joint. A component for replacing at least part of the ulnar head includes a concave surface for accommodating a convex surface of a component for attachment to the radius, e.g. in the sigmoid notch of the radius.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 19, 2013
    Inventor: Jeffrey A. Greenberg
  • Publication number: 20130226306
    Abstract: A compressive force and compressive-shear force joint implant including a head defining at least one wear contact surface. At least the at least one wear contact surface is manufactured from a polycarbonate urethane material. The implant may further include a stem extending from the head opposite of the wear contact surface. The head may also be configured to define a second wear contact surface distinct from the first wear contact surface.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Applicant: REMI SCIENCES, INC.
    Inventor: Sanjiv Naidu
  • Publication number: 20130218285
    Abstract: System, including methods, apparatus, and kits, for replacement of at least one surface region of a distal radioulnar joint using at least one prosthesis. In some embodiments, the system may provide restoration of normal, unconstrained biomechanics of the joint, which may preserve rotation and translation and ensure durability of the joint.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 22, 2013
    Inventor: Acumed LLC
  • Patent number: 8512412
    Abstract: An articulating implant system is provided for fixation to a bone. The articulating implant system includes a fixation component for fixation to the bone and an articulating member for articulating against bone or cartilage. Specifically, a modular ulnar implant is provided in accordance with the articulating implant system of the present invention wherein the fixation component is a stem for insertion into the intramedullary canal of the distal ulna and the articulating member is a head for articulating with the radial sigmoid notch.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: August 20, 2013
    Assignee: Wright Medical Technology, Inc.
    Inventors: Shaun Hanson, Graham J. W. King, Stuart D. Patterson, Alan Taylor, James A. Johnson
  • Publication number: 20130116796
    Abstract: A system and method of implanting a distal wrist implant relative to a host bone is presented. A distal radial component having a body including a first connection portion couplable to a stem is coupled to a second prosthetic coupled to a medial surface of the body. The second prosthetic replaces at least a portion of the sigmoid notch.
    Type: Application
    Filed: December 13, 2012
    Publication date: May 9, 2013
    Applicant: BIOMET MANUFACTURING CORP.
    Inventor: BIOMET MANUFACTURING CORP.
  • Patent number: 8398717
    Abstract: System, including methods, apparatus, and kits, for replacement of at least one surface region of a distal radioulnar joint using at least one prosthesis. In some embodiments, the system may provide restoration of normal, unconstrained biomechanics of the joint, which may preserve rotation and translation and ensure durability of the joint.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: March 19, 2013
    Assignee: Acumed LLC
    Inventor: William B. Kleinman
  • Publication number: 20130053974
    Abstract: Wrists implants and methods are disclosed. A wrist implant can advantageously allow motion with respect to a reconstructed wrist to more closely resemble natural motion. For example, in one aspect, motion can include movement in more than one direction to allow for flexion/extension, rotational, and translational movement. The wrist implant can include a radial implant component and/or a carpal implant component with a bearing component or member disposed therebetween. The radial implant can have a radial articulation surface having at least one variable radius of curvature and/or a tray having a variable width.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 28, 2013
    Applicant: INTEGRA LIFESCIENCES CORPORATION
    Inventors: Jason Shultz, Brian Adams
  • Patent number: 8372154
    Abstract: A prosthetic wrist having at least one of a radial insert, which is configured to be fixed to a radius of a patient, a carpal implant or a wrist bearing component. The carpal implant can include a body and a pair of flanges, each of which being skewed to the axis of the body in a manner that permits them to abut the ulnar side of the hamate bone and the radial side of the distal portion of the carpal bone complex, respectively. The radial insert may be provided with a plurality of modular portions to allow for selection and customization of an implant. Also the various portions can allow for a hemi- or total, or revision wrist arthroplasty. The modular portions can allow for intraopertative customization.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: February 12, 2013
    Assignee: Biomet Manufacturing Corp.
    Inventors: Jason M Schultz, Andrew K Palmer, Kevin T Stone, Thomas J Graham, Brian K Berelsman, James W Strickland
  • Patent number: 8366784
    Abstract: A system and method of implanting a distal wrist implant relative to a host bone is presented. A distal radial component having a body including a first connection portion couplable to a stem is coupled to a second prosthetic coupled to a medial surface of the body. The second prosthetic replaces at least a portion of the sigmoid notch.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 5, 2013
    Assignee: Biomet Manufacturing Corp.
    Inventor: Andrew K. Palmer
  • Publication number: 20120259418
    Abstract: A sigmoid notch resurfacing prosthesis for application to the sigmoid notch of the distal radius. The sigmoid notch prosthesis generally includes a saddle and a radius portion for attachment to the distal radius. The saddle may be formed from ultra high molecular weight polyethylene or another durable self-lubricating material. The saddle includes an at least partially concave contoured depression having rounded edges that is securable to the radius portion. The saddle may be secured by a sliding notch snap fit design. The prosthesis may be adapted for articulation with the natural head of the ulna or with an ulnar head prosthesis that has replaced the ulnar head.
    Type: Application
    Filed: June 20, 2012
    Publication date: October 11, 2012
    Applicant: MAYO FOUNDATION FOR MEDICAL RESEARCH AND EDUCATION
    Inventors: William P. Cooney, III, Richard A. Berger, David A. Leibel
  • Publication number: 20120185056
    Abstract: Thumb carpometacarpal (CMC) joint implants include a trapezium implant defining an articulating surface and a cooperating first metacarpal implant with a base portion of the first metacarpal defining an articulating surface. The first metacarpal base articulating-surface is configured to articulate against the trapezium implant articulating surface.
    Type: Application
    Filed: March 29, 2012
    Publication date: July 19, 2012
    Inventor: Mark J. Warburton
  • Patent number: 8206453
    Abstract: A sigmoid notch resurfacing prosthesis for application to the sigmoid notch of the distal radius. The sigmoid notch prosthesis generally includes a saddle and a radius portion for attachment to the distal radius. The saddle may be formed from ultra high molecular weight polyethylene or another durable self-lubricating material. The saddle includes an at least partially concave contoured depression having rounded edges that is securable to the radius portion. The saddle may be secured by a sliding notch snap fit design. The prosthesis may be adapted for articulation with the natural head of the ulnar or with an ulnar head prosthesis that has replaced the ulnar head.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: June 26, 2012
    Assignee: Mayo Foundation for Medical Research and Education
    Inventors: William Cooney, III, David Leibel, Richard Berger
  • Publication number: 20120158153
    Abstract: A trapezium prosthesis is provided which includes a body having a frustocylindrical shape, the frustocylindrical shape including a frustum and an oppositely disposed planar base, the frustum being canted relative to a planar base. The prosthesis may be made of a swellable fluid absorbing polymer which imparts flexibility and/or resiliency to the prosthesis. The swellable fluid absorbing polymer may also provide the surface of the prosthesis with lubricity. In embodiments, the prosthesis has a first configuration and a second configuration, the first configuration being of reduced size relative to the second configuration. The prosthesis may also include a reinforcement member. In embodiments, the prosthesis includes a stem projecting outwardly from the frustum.
    Type: Application
    Filed: June 23, 2010
    Publication date: June 21, 2012
    Applicant: REPLICATION MEDICAL INC.
    Inventors: Frederick H. Hardenbrook, Seth D. Dodds, Mark Mellon
  • Publication number: 20120150308
    Abstract: A wrist implant requires minimal resection of the distal radius and preserves the sigmoid notch and articulation with the head of the distal ulna. The wrist implant generally includes a radius portion, a carpal portion and a carpal ball. The wrist implant includes a primary articulation and a secondary rotational articulation. The primary articulation occurs between the radius portion and the carpal ball. The secondary articulation occurs between the carpal ball and the carpal portion.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 14, 2012
    Applicant: Avanta Orthopaedics, LLC
    Inventors: Amitava Gupta, David A. Leibel, William P. Cooney, III
  • Publication number: 20120136453
    Abstract: A carpal plate for use in a wrist replacement prosthesis includes at least three non-linearly aligned, internally threaded openings, each opening defining a thread-screw axis with at least one thread-screw axis divergent from the other two thread-screw axes; and further including hollow core screws for the injection of a cement compound to aid in anchoring the screws into the cancellous portion of the carpal bones.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 31, 2012
    Applicant: Aptis Medical, LLC
    Inventors: Luis Roman Scheker, Bryan Babb
  • Publication number: 20120095565
    Abstract: A method of implanting a prosthesis relative to a carpal complex of a wrist is provided. The method can include providing a carpal implant having a body including an ulnar flange and a radial flange, and locating a bone abutment surface of the ulnar flange against a triquetrum of the carpal complex. The method can also include locating a bone abutment surface of the radial flange against a scaphoid of the carpal complex, and locating a first dorsal flange extending from the ulnar flange against a posterior surface of the triquetrum.
    Type: Application
    Filed: December 28, 2011
    Publication date: April 19, 2012
    Applicant: BIOMET MANUFACTURING CORP.
    Inventors: Jason M. Shultz, Kevin T. Stone, Andrew K. Palmer
  • Patent number: 8152854
    Abstract: A modular resurfacing implant for a radioscaphoid joint of a wrist includes a stem and an articular component coupled to the stem. The stem includes a threaded body for implantation into a distal radius and a connection member positioned at a second end of the stem. The articular component includes a body member configured to resurface a scaphoid fossa of the distal radius. The body member includes a concave top surface matching a curvature of the scaphoid fossa and a bottom surface having a post extending therefrom that is configured to mate with the connection member of the stem. The articular component is configured to resurface the scaphoid fossa while leaving a lunate fossa of the distal radius intact.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: April 10, 2012
    Inventors: Joseph E. Imbriglia, Alexander Anzarut
  • Publication number: 20120078376
    Abstract: A method of implanting a distal radial wrist implant relative to a host radius while salvaging at least portions of fractured radial bone can include, determining a size of a host radius. A distal radial component can be selected based on the determination. The distal radial component can have a body that includes a first connection portion. A stem portion can be selected based on the determination. The stem portion can have a second connection portion. Portions of the fractured radial bone can be located around the body. The portions of the fractured radial bone can be secured relative to the body. The first connection portion of the distal radial component can be coupled with the second connection portion of the stem portion. The distal radial implant can be implanted relative to the host radius.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicant: BIOMET MANUFACTURING CORP.
    Inventors: Thomas M. Vanasse, Benjamin P. Heilman, Andrew K. Palmer
  • Patent number: 8105390
    Abstract: A prosthesis for placement relative to a carpal complex of a wrist can generally include a carpal implant having a body including an ulnar flange and a radial flange. The body can have a bone abutment surface and at least one flange extending from the bone abutment surface. The at least one flange can extend from the bone abutment surface a distance that spans at least one bone in an implanted position. The at least one flange can have a securing aperture that selectively receives a bone screw that advances into an identified bone of the carpal complex. A wrist bearing component can selectively mate with the carpal implant.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: January 31, 2012
    Assignee: Biomet Manufacturing Corp.
    Inventors: Jason M. Shultz, Kevin T. Stone, Andrew K. Palmer
  • Patent number: 8105389
    Abstract: A wrist prosthesis system to replace at least a portion of a bone of a wrist of a patient. The system includes a carpal implant to replace at least a portion of a carpal bone of a carpal complex of the patient. The carpal implant includes a base and an augment that replaces at least a portion of the carpal bone. The augment is removably coupled to the base.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: January 31, 2012
    Assignee: Biomet Manufacturing Corp.
    Inventors: Brian K. Berelsman, Thomas J. Graham, Andrew K. Palmer, Thomas M. Vanasse, Nicholas J. Katrana, Nathan A. Winslow
  • Patent number: 8105388
    Abstract: A prosthesis can replace at least a portion of an anatomical wrist. The prosthesis can include modular portions and bone ingrowth portions for fixation. The modular prosthesis can include selected portions that are assembled for implantation.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: January 31, 2012
    Assignee: Biomet Manufacturing Corp.
    Inventors: Andrew K. Palmer, James W. Strickland, Thomas J. Graham, Brian K. Berelsman, Craig J. Allebach, Bryce A. Isch, Thomas M. Vanasse