Ankle Bone Patents (Class 623/21.18)
  • Patent number: 10485561
    Abstract: An ankle arthroplasty system may have a talar prosthesis and a tibial prosthesis, each of which has an articular surface and a bone engagement surface. Each bone engagement surface may have an anterior-posterior curvature and a medial-lateral curvature with a convex shape. A burr with a rotatable cutting element may be used to form a prepared surface on the talus or the tibia to receive the corresponding prosthesis. A cutting guide may be used to guide motion of the burr; the cutting guide may include a base and an arm movably coupled to the base. One of the base and the arm may have a guide surface, and the other may have a follower that slides along the guide surface to constrain motion of the burr such that the prepared surface has at least one concave curvature and one convex curvature.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: November 26, 2019
    Assignee: LIMACORPORATE S.P.A.
    Inventor: Charles Saltzman
  • Patent number: 10413417
    Abstract: The present invention relates to a stabilized ankle prosthesis configured for use in patients with compromised soft tissue in the ankle. The prosthesis of the present invention is a two-component design comprising a stabilizing lip configured to constrain movement in the general direction of compromised soft tissue.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: September 17, 2019
    Assignee: WRIGHT MEDICAL TECHNOLOGY, INC.
    Inventor: Christine M. Petteys
  • Patent number: 10398562
    Abstract: A talar implant, comprising: a superior surface, defined by an arc having at least one first radius; an inferior surface, defined by an arc having at least one second radius, a lateral side; a medial side; a posterior portion having a first width; and an anterior portion having a second width; wherein the implant is configured to restore a tibio-talar joint tension, wherein the superior surface is separated from the inferior surface by a thickness, wherein the at least one first radius is smaller than the at least one second radius, wherein the center of the arc having at least one first radius is offset from the center of the arc having at least one second radius in at least one plane of the talar implant, and wherein the anterior portion further comprises an extension configured to provide support.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: September 3, 2019
    Assignee: Exactech, Inc.
    Inventors: Victor Valderrabano, James Nunley, James DeOrio, Mark Easley, Matthew Hamilton, Phong Diep
  • Patent number: 10350079
    Abstract: A talus surface implant has an arc shaped body with a top side interfacing to the tibia and a bottom side having at least one post for interfacing with holes in the talus and a plurality of spikes for interfacing with the surface of the talus. Preferably the implant is double arc shaped.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: July 16, 2019
    Assignee: ARTHREX, INC.
    Inventors: Gerlinde Michel, Samuel Bachmaier
  • Patent number: 10350071
    Abstract: A hemi-prosthesis implant comprises a replacement-joint part with an articulation surface for tribological pairing with a joint surface of a natural joint counterpart. The articulation surface is embodied with a coating applied on a substrate. The substrate provides a relief for the adhesion of the coating. The relief may comprise one or more of a plurality of grooves, a plurality of teeth, a ribbing, and a roughened surface. The relief may be embodied entirely or partially outside the articulation surface. The replacement joint part may optionally comprise a ventilation feature, and the articulation surface may be formed by injection molding on the substrate. The hemi-prosthesis implant may be part of an implant set that includes both a hemi-prosthesis implant and a total prosthesis implant, either of which can be chosen intraoperatively.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 16, 2019
    Assignee: Mathys AG Bettlach
    Inventors: Reto Lerf, Stefan Scheurer
  • Patent number: 10219909
    Abstract: A system for modifying a talocalcaneal spatial relationship in a foot in a body, including a subtalar spacer having an articulating surface and implanted in the sinus tarsi of the foot and a fastener that fastens the subtalar spacer to a bone surface in the foot, in which the articulating surface of the subtalar spacer directs relative movement between the calcaneus and the talus of the foot.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: March 5, 2019
    Assignee: FOOT INNOVATIONS, LLC.
    Inventors: Roy W. Sanders, Sergio Gutierrez
  • Patent number: 10130481
    Abstract: A method and implant to treat anterior cruciate ligament (ACL) injuries are disclosed. The method involves advancing the insertion of the patellar ligament to the proximal tibia. The implant includes a spacer (30) which is inserted between the patellar ligament and the tibia and fixed to the tibia. The spacer decreases the angle between the patellar ligament and the tibia plateau and consequently modifies the internal joint force, restoring stability to the joint even if the ACL is ruptured. The method and implants are applicable to both human and canine patients.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: November 20, 2018
    Assignee: Kyon AG
    Inventors: Slobodan Tepic, Inja Tepic
  • Patent number: 10123878
    Abstract: Ankle prosthesis (400) comprising a tibial component (100), a talar component (200) and an intermediate component (300) interposed between said tibial component (100) and said talar component (300). The prosthesis has an anatomical shape and enables restoration of articular functionalities. Also described are a tool for the shaping of a talus, which shaping is aimed at the implant of the talar component (200) of said prosthesis (400), and a surgical tool for enabling a shaping of the tibia aimed at the implantation of the tibial component (100).
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 13, 2018
    Assignees: CIQUADRO SNC DI CARBONI SEBASTIANO, FH ORTHOPEDICS, FOURNITURES HOSPITALIERES INDUSTRIE
    Inventors: Anna Impero, Anna Cossu, Hans-Peter Abt
  • Patent number: 10117749
    Abstract: A subtalar joint implant (20) is disclosed for replacing a natural subtalar joint existing between the talus (102) and calcaneum (104) bones of a patient. In an embodiment the implant comprises talar (22) and calcaneal (24) portions that are configured to slide over each other in the implanted state. The implant is shaped so that the sliding is constrained to trajectories that involve pivoting of the talar portion relative to the calcaneal portion about a pivot point (36) or a line (38) of pivot points.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: November 6, 2018
    Assignee: UCL Business, LLC
    Inventors: Andy Goldberg, Gordon Blunn
  • Patent number: 10092325
    Abstract: Devices and methods are disclosed for joint replacement.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 9, 2018
    Inventors: Jonathan T. Deland, Albert H. Burstein
  • Patent number: 9993347
    Abstract: The invention is a subtalar implantable to expand after implantation. The subtalar implant has two or more expansion segments or wings. In all forms, the expansion wings are hinged on the distal portion of the subtalar implant which causes only the proximal portion of the wing to expand relative to the midplane of the implant. The expansion wings and the entire subtalar implant are threaded to prevent the implant from backing out of the sinus tarsi once implanted. In one form, the subtalar implant includes an integral expansion screw that, when rotated, expands the expansion wings. In another form, the subtalar implant includes a separate expansion screw that, when rotated, expands the expansion wings. The integral and the separate expansion screw includes a socket that accepts a like driver tool for rotating the expansion screw and expanding the expansion wings.
    Type: Grant
    Filed: September 4, 2016
    Date of Patent: June 12, 2018
    Assignee: Life Spine, Inc.
    Inventors: Garrett D. Lauf, Michael S. Butler, Matthew S. Coyne
  • Patent number: 9949839
    Abstract: In some embodiments, a surgical method includes creating an incision in a patient, exposing a multi-component prosthesis implanted in a patient, disassembling at least one component of the multi-component prosthesis, and coupling a first revision implant component to a first component of the multi-component prosthesis. The revision implant component has a body including at least one of a projection or an opening that is complementary to a feature of the first component of the multi-component prosthesis for coupling the revision implant component to the first component of the multi-component prosthesis.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: April 24, 2018
    Assignee: Wright Medical Technology, Inc.
    Inventor: Elizabeth Sander
  • Patent number: 9925054
    Abstract: A prosthetic ankle comprising a talar component and a tibial component. At least a portion of top surface of the talar component has a convex curvature, relative to a location above the top surface, in the anterior to posterior direction as viewed in a sagittal plane cross-section, a concave curvature relative to a location above the top surface, in the medial to lateral direction, and an average radius of curvature of at least a major portion of the medial side of the top surface of the talar component is larger than an average radius of curvature of at least a major portion of the lateral side of the top surface of the talar component as viewed in sagittal plane cross-sections on the lateral and medial sides. A bearing component for location between the tibial and talar component is also described.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: March 27, 2018
    Assignee: Drexel University
    Inventors: Sorin Siegler, Jason R. Toy
  • Patent number: 9907561
    Abstract: Surgical methods for multi-component ankle prosthesis are provided that include use of a guide arm, a ratchet arm frame configured to be coupled slidably to the guide arm, a ratchet arm configured to be coupled to the ratchet arm frame, and a sagittal sizing guide body configured to be coupled to the ratchet arm. Methods including a sagittal sizing guide body include positioning a first radiopaque object at a first position and a second radiopaque object located at a second position that is spaced apart from the first position.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: March 6, 2018
    Assignee: Wright Medical Technologies, Inc.
    Inventors: Ramon Luna, Murray Penner
  • Patent number: 9795425
    Abstract: A bone plate for fixation to a phalanx includes a head extending from a first end to a second end and having first and second fixation element holes extending therethrough, a connection portion extending from the second end of the head to a third end along the central longitudinal axis, the connection portion including an oblong hole elongated in a direction parallel to the central longitudinal axis, and a shaft extending from the third end of the connection portion to a fourth end along the central longitudinal axis. The shaft includes third and fourth fixation element holes extending along the central longitudinal axis. The shaft includes a plurality of first projections and a plurality of second projections. The first and second projections include corresponding projection fixation element holes extending therethrough and being connected to the shaft. The first and second projections are alternatingly provided on the shaft.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: October 24, 2017
    Assignee: DEPUY SYNTHES PRODUCTS, INC.
    Inventors: Adam Hashmi, Mirko Rocci, Lynn Kelly, Fabienne Fischer
  • Patent number: 9775717
    Abstract: A subtalar joint prosthesis that is adapted to replace the natural subtalar joint that exists between a patient's talus and calcaneus bones includes talar and calcaneal components. Each of these is configured to have a shape that is herein defined as being a portion of the boundary surface of a frustum. Meanwhile, these components' inner surfaces are configured to: (a) generally follow the anatomic contour of the original joint surface to which each component is to be attached, and (b) minimize each components's average thickness, consistent with providing sufficient strength and rigidity for the components, so as to require minimum bone resection for the implantation of these components.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: October 3, 2017
    Inventors: Lew C. Schon, Christopher Chiodo, Brent G. Parks, David Aaron, Zeynep B. Dine
  • Patent number: 9757244
    Abstract: A bone implant is disclosed. The implant comprises a body having a bone contact surface and an articulation surface. A first flange extends longitudinally from the bone contact surface. The flange defines a first screw hole configured to receive a targeted screw therethrough. The targeted screw couples the implant to a bone.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: September 12, 2017
    Assignee: Wright Medical Technology, Inc.
    Inventor: Elizabeth J. Sander
  • Patent number: 9681958
    Abstract: An endoprosthesis for replacing the ankle joint includes a lower component which is configured to be connected to the ankle bone, an upper component which is configured to be connected to the shin bone, and an intermediate part which forms a slide joint both with the lower and upper components. The intermediate part, which is wedge-shaped in sagittal section, is provided in order to compensate for anatomical or surgical irregularities. The upper component can also be wedge-shaped in frontal or sagittal section.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: June 20, 2017
    Assignee: Stryker European Holdings I, LLC
    Inventors: Hakon Kofoed, Arnold Keller, Helmut D. Link
  • Patent number: 9622871
    Abstract: A revision implant component comprising a body having a plurality of screw holes and a tapered head configured to engage a talar dome component of a multi-component ankle prosthesis. A surgical method is disclosed which includes creating an incision in a patient, exposing a multi-component ankle prosthesis implanted in a patient, disassembling at least one component of the multi-component ankle prosthesis, affixing a revision implant component to non-damaged bone using screws, and coupling the revision implant component to a talar dome of the multi-component ankle prosthesis.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: April 18, 2017
    Assignee: Wright Medical Technology, Inc.
    Inventor: Elizabeth J. Sander
  • Patent number: 9579210
    Abstract: A talar implant is disclosed. The implant comprises a body comprising a bone contact surface and an articulation surface. A stem extends longitudinally from the bone contact surface. The stem comprises one or more features sized and configured to prevent rotational movement, anterior/posterior movement, and medial/lateral movement. The stem is configured to be received within a hole a talus.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: February 28, 2017
    Assignee: Wright Medical Technology, Inc.
    Inventor: Kian-Ming Wong
  • Patent number: 9539044
    Abstract: A system comprising instrumentalities and methods for removing intramedullary stem component pieces of a tibial implant from a distal tibia.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: January 10, 2017
    Inventor: George John Lian
  • Patent number: 9492281
    Abstract: The invention relates to an ankle prosthesis including a talar implant, a tibial implant, and an intermediate implant designed to be mounted to move relative to said talar implant in order to impart mobility to the ankle, said prosthesis further including embedded adjustment structure designed to alternate between a releasing state, in which they allow the intermediate implant to move relative to the tibial implant, and a locking state, in which they hold the prosthesis in the chosen assembly configuration, said prosthesis being characterized in that said adjustment structure can be controlled to be operable while the prosthesis is in the assembled state in vivo.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: November 15, 2016
    Assignee: European Foot Platform SC
    Inventors: Guillaume Francois Antoine Rouyer, Damien Sandoz-Othenin
  • Patent number: 9480571
    Abstract: A position adjustment device having a tool holder is locked to at least two pins projecting from respective anterior facing locations near a distal end of a tibia of a patient. The position adjustment device is adjusted. The position adjustment device is locked with the tool holder at first coordinates in the proximal-distal and medial-lateral directions. The distal end of the tibia is resectioned with a tool positioned on the tool holder, while the tool holder is in the first coordinates in the proximal-distal and medial-lateral directions. The tool is removed from the tool holder. A tibia trial is placed on the resectioned tibia using the tool holder, while the tool holder is in the first coordinates in the proximal-distal and medial-lateral directions. The tibia trial has a size and shape of a tibial tray of an ankle replacement system.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 1, 2016
    Assignee: Wright Medical Technology, Inc.
    Inventors: Shawn E. McGinley, Braham K. Dhillon, Ramon Luna, Robert M. Howles
  • Patent number: 9480486
    Abstract: Devices and methods are disclosed for joint replacement.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 1, 2016
    Inventors: Albert H. Burstein, Jonathan T. Deland
  • Patent number: 9474619
    Abstract: A glenoid component is provided to reduce glenoid loosening when implanted in orthopedic joint replacement/reconstruction, such for a shoulder. The glenoid component can include pegs or a keel and articulating surface geometry that uses complex, non-spherical geometry to recreate a level of constraint that is adequate, but not excessive, to thereby mitigate loosening of the glenoid component after implantation. In addition, some embodiments provide that peak stresses both within cement and at an interface of the cement and a supportive component can be reduced. Further, geometry of the pegs can allow stresses to be evenly applied to a cement mantle formed in the supportive component. Finally, the pegs can be configured to desired lengths in order to avoid placement in areas of the supportive component, for example, that have insufficient bone stock.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: October 25, 2016
    Assignee: Tornier, Inc.
    Inventors: Leo M. Reubelt, Peter L. Verrillo
  • Patent number: 9468532
    Abstract: A semi-constrained polyaxial ankle joint replacement implant has a dual bearing component, a tibial component or plate adapted for attachment to a tibia or fibula bone, and a talar component or plate adapted for attachment to a talus or calceneus bone of the foot. The dual bearing component includes a superior bearing providing gliding articulation/translation between it and the tibial component, and an inferior bearing providing gliding articulation/translation between it and the talar component. The tibial plate has peripheral transversely extending flanges that semi constrain or limit movement relative to the superior bearing and/or vice versa. The inferior bearing has a flange extending upwardly from the superior surface thereof that is received in an opening in the intermediate plate to semi constrain or limit movement relative between the two components.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: October 18, 2016
    Inventor: Adam D. Perler
  • Patent number: 9370429
    Abstract: A system for modifying a talocalcaneal spatial relationship in a foot in a body, including a subtalar spacer having an articulating surface and implanted in the sinus tarsi of the foot and a fastener that fastens the subtalar spacer to a bone surface in the foot, in which the articulating surface of the subtalar spacer directs relative movement between the calcaneus and the talus of the foot.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 21, 2016
    Assignee: Foot Innovations, LLC
    Inventors: Roy Sanders, Sergio Gutierrez
  • Patent number: 9339389
    Abstract: An acetabular cup prosthesis comprising an acetabular cup having a rim and comprising a metal band applied around the outer circumference of the acetabular cup prosthesis and adjacent to said rim.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 17, 2016
    Assignee: FINSBURY (DEVELOPMENT) LIMITED
    Inventors: Michael Antony Tuke, Andrew Clive Taylor
  • Patent number: 9308097
    Abstract: A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: April 12, 2016
    Assignee: Inbone Technologies, Inc.
    Inventor: Mark A. Reiley
  • Patent number: 9168100
    Abstract: Devices, instruments and associated methods for the subchondral treatment of osteoarthritis in small joints are provided. In addition, a method for treating joint pain in small joints is provided. These small joints may be ankle, elbow or wrist joints. The methods may target one of many different access points having trajectories with a common focal point at or near the small joint. The instruments may limit access to areas within or near the small joint by providing predefined entry paths that avoid damage to surrounding tissues.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: October 27, 2015
    Assignee: ZIMMER KNEE CREATIONS, INC.
    Inventors: Shaun B. Hanson, Christopher D. Mandeen, Jamie A. Carroll, Guido Laporta
  • Patent number: 9144500
    Abstract: Ankle replacement devices are disclosed. Methods of making and using ankle replacement devices are also disclosed.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: September 29, 2015
    Inventor: Michael G. Harding, Jr.
  • Patent number: 9132018
    Abstract: An ankle replacement prosthesis includes a tibial component, attached within a cavity formed in the tibia, and a talocalcaneal component, attached within a slot formed within a talocalcaneal compound, previously formed by fusing the talus and the calcaneus. Preferably, the talocalcaneal component includes a neck, to which a head, having a contact surface engaging a contact surface within the tibial component, is adjustably attached. These contact surfaces may both be spherical, with the contact surface of the talocalcaneal component being formed as a ball fitting within a socket formed by the contact surface of the tibial component, or these contact surfaces may include mating feature that limit inversion/eversion rotation of the foot, while providing for dorsal/plantar rotation thereof.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: September 15, 2015
    Inventor: Mohammed A. Hajianpour
  • Patent number: 9119642
    Abstract: Devices and methods are disclosed for joint replacement.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: September 1, 2015
    Inventors: Albert H. Burstein, Jonathan T. Deland
  • Patent number: 9095439
    Abstract: An ankle replacement prosthesis comprising a cannulated tibial prosthetic stem component formed by a plurality of cannulated modular stem component pieces and tibial prosthetic instrumentalities and methods for installing the cannulated modular stem component pieces into a distal tibia and removing the cannulated modular stem component pieces from a distal tibia.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: August 4, 2015
    Inventor: George John Lian
  • Patent number: 9044325
    Abstract: The elbow prosthesis includes an ulnar component that has a bearing end and a stem. The stem is attached to the bearing end and extends in a distal direction from it. The elbow prosthesis also has a humeral component that includes a holder end and a stem with the stem extending in a proximal direction from the holder end. The prosthesis further includes at least one bearing member that is connected to the holder end with the bearing end being attached within the holder end to allow for rotation and articulation against the at least one bearing member. The bearing end and holder end are attached to each other by a coupling mechanism that includes an opening positioned on the posterior aspect of the holder end and a mating surface on the bearing body. A method of using the elbow prosthesis and a total elbow prosthesis kit are also disclosed.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 2, 2015
    Assignee: Bluefish Orthopedics, LLC
    Inventors: Andrew K. Palmer, Dale Dellacqua
  • Publication number: 20150134071
    Abstract: A prosthesis suited for orthopedic implantation comprising a modular intramedullary rod that provides intramedullary guidance and that supports an artificial joint surface that can articulate with another artificial joint surface in various ways. Intramedullary guidance systems and methods introduce some and/or all surgical tools and ankle prostheses components through the tibia, using minimal invasive exposure. The systems and methods align the talus and tibia for the installation of one or more ankle prostheses components, and also maintain that alignment during the installation using intramedullary guidance.
    Type: Application
    Filed: March 14, 2014
    Publication date: May 14, 2015
    Inventors: Ramon Luna, Matthew Talley, Christine M. Petteys, David Reynolds, Paul Stemniski, Richard Obert
  • Patent number: 9005301
    Abstract: A system for modifying a talocalcaneal spatial relationship in a foot in a body, including a subtalar spacer having an articulating surface and implanted in the sinus tarsi of the foot and a fastener that fastens the subtalar spacer to a bone surface in the foot, in which the articulating surface of the subtalar spacer directs relative movement between the calcaneus and the talus of the foot.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: April 14, 2015
    Assignee: Foot Innovations, LLC
    Inventors: Roy W. Sanders, Sergio GutiƩrrez
  • Patent number: 8979937
    Abstract: A multi-component ankle joint assembly incorporated into reconditioned end surfaces established between an upper tibia bone and an opposing and lower talus bone. A first component is anchored into the upper tibia reconditioned end surface and exhibits a first exposed support surface. A second component is anchored into the lower talus reconditioned end surface of and exhibits a second exposed support surface. A spherical shaped intermediate component is supported in at least one of eccentric or rotational fashion between the first and second anchored components. The spherical shaped component includes a multi-layer composition having a softer outer layer and at least one harder interior layer establishing an eccentric rotational interface therebetween.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: March 17, 2015
    Assignee: Linares Medical Devices, LLC
    Inventors: Miguel A. Linares, Miguel A. Linares, Jr.
  • Publication number: 20150057761
    Abstract: A first prosthetic ankle component (10) comprising: a first bearing surface (12) configured to engage a second bearing surface (22) of a second prosthetic ankle component (20); and a protrusion (16) or slot (26) on the first bearing surface, the protrusion or slot being configured to engage a respective slot (26) or protrusion (16) in the second bearing surface of the second prosthetic ankle component, wherein the protrusion or slot is further configured such that the interaction with the respective slot or protrusion permits the first and second prosthetic ankle components to slide with respect to one another in an interface plane defined by the interface between the first and second bearing surfaces, and wherein the protrusion or slot is further configured to restrict the first and second prosthetic ankle components moving away from one another in a direction with a component perpendicular to the interface plane.
    Type: Application
    Filed: April 4, 2013
    Publication date: February 26, 2015
    Applicant: Biomet UK Healthcare Limited
    Inventor: Paul Smirthwaite
  • Patent number: 8961615
    Abstract: A prosthesis for reconstructing a multibone joint such as a wrist. A patient's scaphoid is removed to create a void. The scaphoid has a plurality of adjacent bones, each of the adjacent bones comprising a surface generally facing the void. The surface of at least two of the adjacent bones is prepared by affixing a magnetic element thereto and a magnetic scaphoid implant is inserted into the void. A magnetic relationship exists between the magnetic elements and the magnetic scaphoid implant.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: February 24, 2015
    Inventor: Richard A. Rogachefsky
  • Publication number: 20150051706
    Abstract: A subtalar joint prosthesis that is adapted to replace the natural subtalar joint that exists between a patient's talus and calcaneus bones includes talar and calcaneal components. Each of these is configured to have a shape that is herein defined as being a portion of the boundary surface of a frustum. Meanwhile, these components' inner surfaces are configured to: (a) generally follow the anatomic contour of the original joint surface to which each component is to be attached, and (b) minimize each components's average thickness, consistent with providing sufficient strength and rigidity for the components, so as to require minimum bone resection for the implantation of these components.
    Type: Application
    Filed: August 15, 2011
    Publication date: February 19, 2015
    Inventors: Lew C. Schon, Christopher Chiodo, Brent G. Parks, David Aaron, Zeynep B. Dine
  • Publication number: 20150045902
    Abstract: A semi-constrained polyaxial ankle joint replacement implant has a dual bearing component, a tibial component or plate adapted for attachment to a tibia or fibula bone, and a talar component or plate adapted for attachment to a talus or calceneus bone of the foot. The dual bearing component includes a superior bearing providing gliding articulation/translation between it and the tibial component, and an inferior bearing providing gliding articulation/translation between it and the talar component. The tibial plate has peripheral transversely extending flanges that semi constrain or limit movement relative to the superior bearing and/or vice versa. The inferior bearing has a flange extending upwardly from the superior surface thereof that is received in an opening in the intermediate plate to semi constrain or limit movement relative between the two components.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 12, 2015
    Inventor: Adam D. Perler
  • Publication number: 20150045903
    Abstract: A method of manufacturing an orthopedic implant is provided. The method includes creating a 3D model of an orthopedic implant having a solid portion and a porous portion and selectively adjusting a physical property of at least one of porosity of the porous portion, lattice thickness of the porous portion, beam profile of the porous portion, and topography of the 3D model. The entire implant is then additively manufactured based on the 3D model.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 12, 2015
    Inventor: David J. Neal
  • Publication number: 20140371867
    Abstract: A talonavicular joint prosthesis (1) adapted to replace the natural talonavicular joint that exists between a patient's talus and navicular bones, after appropriate surgical preparation of the joint-related portions of these bones so as to create a new joint space to accommodate this prosthesis, includes talar (2) and navicular (4) components. Each of these have inner (8, 28) and outer (6, 26) surfaces whose average separate distance is defined as the component's average thickness. These components inner (8, 28) surfaces are configured to: (a) generally follow the anatomic contour of the original joint surface to which each component is to be attached, and (b) minimize each component's average thickness, consistent with providing sufficient strength and rigidity for the components, so as to require minimum bone resection in the creation of the new prosthesis-accommodating, joint space.
    Type: Application
    Filed: September 4, 2010
    Publication date: December 18, 2014
    Inventors: Lew C. Schon, Christopher Chiodo, Brent G. Parks, Josh Nadaud, Zeynep Busra Dinc
  • Publication number: 20140350688
    Abstract: A talus surface implant has an arc shaped body with a top side interfacing to the tibia and a bottom side having at least one post for interfacing with holes in the talus and a plurality of spikes for interfacing with the surface of the talus. Preferably the implant is double arc shaped.
    Type: Application
    Filed: August 7, 2014
    Publication date: November 27, 2014
    Applicant: Arthrex, Inc.
    Inventors: Gerlinde Michel, Samuel Bachmaier
  • Publication number: 20140336775
    Abstract: A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventor: Mark A. Reiley
  • Patent number: 8852286
    Abstract: Implant devices, and method of using the same, are provided. The implant devices have an articular end and a stem, the stem having an oval-shaped cross-section. The articular end has an upper surface, a side surface, and a lower surface. The upper surface and lower surface each intersect the side surface. The upper surface has a first surface curvature, a central surface curvature, and a second surface curvature. The stem extends from the lower surface in a direction away from the upper surface of the articular end.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: October 7, 2014
    Assignee: Fellowship of Orthopaedic Researchers, Inc.
    Inventors: Stephen D. Cook, Peter Strzepa, Shoib Bajaj
  • Publication number: 20140296995
    Abstract: A prosthesis suited for orthopedic implantation possesses a multi-piece stem component that supports an artificial joint surface that can articulate with another artificial joint surface in various ways. The prosthesis can be assembled in a snap fit and/or interlocking fashion that provides positive locking means without the use of screws or other fasteners. The prosthesis can accommodate fitment of a plastic joint surface made, e.g., from ultra high molecular weight polyethylene. The prosthesis is well suited for use in an ankle replacement system that can be installed using minimally invasive intramedullary guidance established with respect to the major axis of the tibia by minimally invasive access through the calcaneus, through an incision in the bottom of the foot. The prosthesis makes possible the installation of a total ankle system using minimally invasive anterior access to the ankle joint for making bony cuts and to install prosthesis components.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Inventors: Mark A. Reiley, Louis E. Greenberg, R. Garrett Mauldin
  • 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
  • Patent number: 8808389
    Abstract: A total ankle replacement system, novel surgical method for total ankle replacement, and novel surgical tools for performing the surgical method are described. The total ankle replacement system includes the calcaneus in fixation of a lower prosthesis body, thereby significantly increasing the amount of bone available for fixation of the lower prosthesis body and allowing the lower prosthesis body to be anchored with screws. The total ankle replacement system further includes a long tibial stem which can also be anchored into the tibia with, for example, screws, nails, anchors, or some other means of attachment. The novel surgical arthroscopic method allows introduction of ankle prostheses into the ankle joint through an exposure in the tibial tubercle. Various novel surgical instruments, such as a telescoping articulating reamer and a talo-calcaneal jig, which facilitate the novel surgical method, are also described.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: August 19, 2014
    Assignee: Inbone Technologies, Inc.
    Inventor: Mark A. Reiley