Humeral Bone Patents (Class 623/19.14)
  • Patent number: 10595916
    Abstract: This disclosure includes apparatus and methods to attach an orthopedic device to a bone. The method can comprise locating a baseplate on a glenoid of a patient, the base plate including at least a first fastener bore, creating a first post hole in the glenoid for locating a first fixation post, the first fixation post including a quasi-spherical head and a porous metal sleeve, and driving the first fixation post through the first fastener bore and into the first post hole. The porous metal sleeve can engage the first post hole and the quasi-spherical head can contact at least the first wall of the first fastener bore to removeably lock the quasi-spherical head to the baseplate. Driving the first fixation post can create an initial compression between the baseplate and the glenoid. The porous metal sleeve can receive bone ingrowth to maintain the initial compression.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: March 24, 2020
    Assignee: Zimmer, Inc.
    Inventor: Andrew Rolfe Hopkins
  • Patent number: 10588752
    Abstract: A modular bone model can include a bone component and an implant component that can be positioned on the bone component. The implant component can be shaped and sized to correspond to a head component of a medical implant to simulate an articulating surface of the head component. Similarly, the bone component can be shaped to simulate a natural bone to which the medical implant can be mounted. Alternatively, the head component of the medical implant can be mounted directly to the bone component to simulate the mounting on the natural bone.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: March 17, 2020
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nathan A. Winslow, Clinton E. Kehres
  • Patent number: 10368999
    Abstract: A humeral head implant system includes a head component including a first articulating surface, a second bottom surface extending from the first spherical articulating surface, a first cavity extending a first distance into the head component from the second bottom surface, and a second cavity extending into the head component along a cavity axis. The head component defines a head axis extending through a center of the first articulating surface parallel to the cavity axis. A base component defines a slot extending from a first width to a second width. An insert component includes an insert body, a first engagement feature, and a slot engagement feature. The first engagement feature is received in the second cavity along the cavity axis. The insert body has an insert thickness less than the first distance, and the slot engagement feature slides into the slot in a direction transverse to the cavity axis.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: August 6, 2019
    Inventor: Raymond Michael Greiwe
  • Patent number: 10226349
    Abstract: Methods and devices are disclosed for joint (e.g., shoulder) arthroplasty. In one aspect, there is provided a device for determining inclination and/or version of a prosthetic head with respect to a prosthetic stem. In another aspect, there is provided a joint (e.g., shoulder) prosthesis. In another aspect, there is provided a method for setting an inclination angle and/or a version angle of a prosthetic head with respect to a stem implanted or to be implanted in a bone of a joint (e.g., shoulder).
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: March 12, 2019
    Assignee: Mayo Foundation for Medical Education and Research
    Inventors: John W. Sperling, Aaron C. Treat, Bruce R. Kline, Michael B. Larson
  • Patent number: 10098745
    Abstract: A hip implant having two distinct bodies, a neck body and a bone fixation body. The neck body is formed from a solid metal and has an interface for connecting to a femoral ball. The bone fixation body has an elongated shape and is formed as a porous structure that is inserted into an intramedullary canal of a patient.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: October 16, 2018
    Inventor: Philip Scott Lyren
  • Patent number: 10034759
    Abstract: Embodiments of the present invention include a convertible prosthesis that is capable of conversion from a humeral head replacement to a reverse reconstruction without any removal of parts integrated into the patient's bony anatomy (e.g. implant stems). A desired overall implant inclination angle may be achieved by matching various implant stems with various reverse inserts, thus permitting a resection surface to be matched with an implant stem selection while also permitting a desired overall implant inclination angle to be achieved through the selection of an appropriate insert.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: July 31, 2018
    Assignee: Tornier Orthopedics Ireland Ltd.
    Inventors: Pierric Deransart, Vincent Gaborit, Brian Maroney, Brian C. Hodorek, Shawn Gargac, Pascal Boileau, Gilles Walch, Luc Favard, Philippe Clavert, François Sirveaux, James Kelly, Sumant Krishnan, Daniel Mole, Cédric Comte, Eric Rundstadler, François Mondi, Christopher R. Chuinard, Thomas Bradley Edwards
  • Patent number: 10010424
    Abstract: An implant, prosthesis and method of use are described. The implant comprises an articulation component having a bearing surface and a reverse surface arranged to couple to a proximal neck portion of an arthroplasty implant coupled to a bone. A collar is arranged to couple to the reverse surface of the articulation component. The collar defines a neck hole arranged to pass around the coupling between the articulation component and the proximal neck portion of the arthroplasty implant. The collar and the articulation component comprise complementary coupling features to secure the collar to the articulation component. The collar further comprises a plurality of attachment portions to couple the collar to bone fragments or soft tissues. The prosthesis comprises the implant and an arthroplasty implant having a distal portion arranged to be coupled to an end of a long bone and a proximal neck portion.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: July 3, 2018
    Assignee: DEPUY IRELAND UNLIMITED COMPANY
    Inventors: Anders Ekelund, Sylvain Gauthier
  • Patent number: 9956083
    Abstract: The present invention is directed to a modular assembly for an arthroplasty in a long bone and methods for achieving an anatomically accurate reconstruction. A modular arthroplasty assembly includes the components of: a convertible offset coupler bounded on a first side by an implant surface adapted to receive an implant component, and bounded on an opposite second side by a bone anchor engagement surface, prosthesis component and a bone anchor configured to be inserted in bone and adapted for engagement with the convertible offset coupler. Together, the components of the system, including the array of selectable engagement orientations of the components, enables adaptation to the existing anatomy of the patient and the ability to most closely achieve the native anatomy of the healthy shoulder joint so as to provide the patient with the most natural use of the joint.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: May 1, 2018
    Assignee: Deltoid, LLC
    Inventor: C. Scott Humphrey
  • Patent number: 9918854
    Abstract: A method of aligning implant components includes placing a first implant component in bone, followed by: coupling a first intermediate member to the first implant component; coupling a first alignment member to the first intermediate member; rotating the members as a unit to place the first intermediate member in an alignment position; removing the first alignment member from the first intermediate member; coupling a second alignment member to a second intermediate member; coupling the second intermediate member to the first intermediate member and rotating the second alignment member and the second intermediate member as a unit relative to the first intermediate member to provide a desired orientation of the second intermediate member. An alignment system for aligning first and second members includes a first alignment member having an offset channel dimensioned to receive the first member, and a second alignment member having a channel dimensioned to receive the second member.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: March 20, 2018
    Assignee: Smith & Nephew, Inc.
    Inventors: Henry Keith Bonin, Jr., David Edward Chreene, Alexander Iwan Seidl, Claude Mathieu, Daniel Zimmerman, Francis X. Mendoza
  • Patent number: 9907664
    Abstract: A tibial augment for use with a knee joint prosthesis, composed of annular members of different stock sizes, each size being configured to fit within a cavity formed in a human tibia. The augment may include a stepped distal surface. A provisional (temporary) tibial augment used to ensure a proper fit for the permanent augment is also provided. The provisional may include grooves configured to cooperate with a set of ribs on a tong-like holder used for removing the provisional from the cavity. A pusher for use implanting the tibial augment is also provided. In addition, a system for creating a cavity in a human tibia is also described. The system preferably includes a guide with a slot therein and a set of osteotomes that are inserted within different portions of the slot.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: March 6, 2018
    Assignee: Zimmer, Inc.
    Inventors: Jeff Blaylock, Michael Cook, Ron Donkers, Scott Dykema, David Jones, John E. Meyers, Stephen J Vankoski, Arlen D. Hanssen, David Lewallen
  • Patent number: 9877757
    Abstract: An arthroplasty plate and method of use to repair a fractured end of a bone are described. The arthroplasty plate comprises a fixation plate arranged to be secured to a surface of a bone and a connector assembly comprising a barrel extending from the fixation plate and having a bore which opens through the fixation plate. A connector rod is arranged to slide within the bore of the barrel. An articulation component comprises a bearing surface coupled to or arranged to couple to an end of the connector rod which extends from the barrel away from the fixation plate. The connector assembly incorporates an adjustment mechanism arranged to cause the connector rod to slide into or out of the barrel and a locking mechanism arranged to lock the position of the connector rod within the barrel to rigidly space the articulation component apart from the fixation plate.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: January 30, 2018
    Assignee: DEPUY IRELAND UNLIMITED COMPANY
    Inventors: David Berchoux, Sylvain Gauthier, Anders Ekelund
  • Patent number: 9867710
    Abstract: A modular humeral prosthesis suitable for implant in a humeral seating of a humerus comprises an articulation component, a distal joint element able to be inserted into said humeral seating along an insertion axis, and an adapter body provided with a support positionable in the humeral seating and that has a coupling seating to connect said articulation component and provided with a connection unit inserted into said support to connect said distal joint element to said adapter body in a releasable manner. The connection unit comprises a clamping element associated in a selectively releasable manner to the distal joint element and the support has a through coupling seating configured to receive and position said clamping element inside it, and also configured to allow the insertion and extraction of said distal joint element through said support without removing said support from the humeral seating.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: January 16, 2018
    Assignee: LIMACORPORATE S.P.A.
    Inventors: Paolo Dalla Pria, Michele Pressacco, Simone Ursella
  • Patent number: 9848990
    Abstract: A method for implanting a reverse modular humeral implant into a humerus that includes a natural humeral shaft and a natural humeral head. The implant includes a humeral stem implantable into the natural humeral shaft, and an adapter couplable to the humeral stem, the adapter including an anchoring projection configured to be coupled to a convex bearing.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: December 26, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nathan A. Winslow, John M. McDaniel
  • Patent number: 9844439
    Abstract: A prosthesis to replace a portion of the anatomy, such as the humerus, can include a first shell. A second prosthesis can be positioned relative to the shell to provide the bearing surface to articulate with a glenoid prosthesis or glenoid. The second prosthesis can include a connection portion to engage a connection portion in the shell.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: December 19, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nicholas J. Katrana, Nathan A. Winslow
  • Patent number: 9622870
    Abstract: An implant (20), prosthesis and method of use are described. The implant comprises an articulation component (24) having a bearing surface (60) and a reverse surface (62) arranged to couple to a proximal neck portion (26) of an arthroplasty implant (22) coupled to a bone. A collar (28) is arranged to couple to the reverse surface of the articulation component. The collar defines a neck hole (70) arranged to pass around the coupling between the articulation component and the proximal neck portion of the arthroplasty implant. The collar and the articulation component comprise complementary coupling features to secure the collar to the articulation component. The collar further comprises a plurality of attachment portions (74) to couple the collar to bone fragments or soft tissues. The prosthesis comprises the implant and an arthroplasty implant having a distal portion arranged to be coupled to an end of a long bone and a proximal neck portion.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: April 18, 2017
    Assignee: DEPUY (IRELAND)
    Inventors: Anders Ekelund, Sylvain Gauthier
  • Patent number: 9615928
    Abstract: The invention provides an implantable medical device for treatment of a proximal humerus fracture, comprising a base element to be anchored in the medullar cavity of the humeral shaft, a support element to be fixed with respect to the base element, wherein the support element is configured to support one or more bone fragments, wherein the medical device comprises positioning members configured to position the support element with respect to the base element in a range of rotational positions and axial positions, and wherein the medical device comprises a fixation device to fixate the support element, within the range of rotational positions and axial positions, in a desired rotational and axial position with respect to the base element. In an embodiment, the medical device is a non-occluding medical device, wherein after implantation the medullar cavity is not occluded by the medical device due to the open and non canal filling structure of the device preserving blood flow to the reattached bone fragments.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: April 11, 2017
    Assignee: IMPLANT SERVICE B.V.
    Inventor: Cornelis Pieter Jan Visser
  • Patent number: 9610084
    Abstract: A hip replacement method in which includes making an anterior incision and a lateral incision proximate the hip joint. The method next includes preparing a femoral passage directed along an axis of the femoral neck of the femur. An acetabulum reamer coupled to a femoral elongate element installed in the femoral passage is used to ream the acetabulum. The femoral head is prepared using a tool coupled to a femoral elongate element installed in the femoral passage. An acetabular prosthesis is then installed using a femoral elongate element installed in the femoral passage. A femoral prosthesis is installed using a femoral elongate element installed in the femoral passage. All of the foregoing steps are performed without dislocating the hip joint.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 4, 2017
    Inventor: Peter Michael Sutherland Walker
  • Patent number: 9510839
    Abstract: A medical procedure for use in connection with a patient suffering from cuff tear arthropathy is disclosed. The medial procedure includes securing a prosthetic head component having a glenoid-bearing portion and an acromion-bearing portion to a humerus of a patient so that the glenoid-bearing portion is positioned in bearing contact with a glenoid surface of a scapula of the patient. The method further includes abducting the humerus so as to move the acromion-bearing portion of the prosthetic head component into direct contact with an acromion of the patient.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: December 6, 2016
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Brian J. Maroney, Ian A. Trail
  • Patent number: 9504581
    Abstract: A modular humeral head resurfacing implant including a head, an anchoring stem, and a modular extended articulation flange. The head includes an exterior hemispherical articulating surface defining a terminating rim, an interior concave surface opposite to the exterior articulating surface, and a first coupling mechanism proximate to the terminating rim. The anchoring stem is coupled to the interior concave surface and extends along a stem axis that extends through an axial center of the head. The articulation flange includes a second coupling mechanism configured to cooperate with the first coupling mechanism to fasten the articulation flange to the head and an outer articulating surface that is curved along substantially its entire length and is substantially flush with the exterior hemispherical articulating surface when the articulation flange is fastened to the head.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: November 29, 2016
    Assignee: Biomet Manufacturing, LLC
    Inventors: Russell M. Parrott, Nathan A. Winslow
  • Patent number: 9498344
    Abstract: A modular reverse shoulder prosthesis according to embodiments of the present invention includes a stem having a proximal taper and a primary stem axis, the proximal taper extending from the stem about a metaphyseal axis, the metaphyseal axis at an angle with respect to the primary stem axis, a metaphysis having a proximal end, a distal end, a first aperture in the distal end configured to be placed over the proximal taper, and a second aperture in the proximal end having an insert axis that is eccentrically offset from the metaphyseal axis, the metaphysis configured for attachment to the stem at any rotational position of the metaphysis about the metaphyseal axis, and a reverse insert, the reverse insert having a proximal end and a distal end, wherein the proximal end comprises a concave cup formed about a cup axis and configured to receive a glenosphere.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 22, 2016
    Assignee: TORNIER ORTHOPEDICS IRELAND, LTD.
    Inventors: Brian C. Hodorek, Shawn Martin Gargac
  • Patent number: 9402730
    Abstract: A humeral prosthesis includes a stem component with a lateral stem body and a head component joined by an inclination component or block. The stem component and the inclination component are provided with openings/holes/fenestrations/eyelets that allow attachment of soft tissue (and optional fracture repair). A first plurality of suture holes are provided to the lateral stem body and a second plurality of suture holes are provided on the medial aspect of the inclination block. These suture holes are intended for subscapularis or lesser tuberosity reattachments. Inclination angle, radial offset, and version are adjustable and are separately and independently set and fixed.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: August 2, 2016
    Assignee: Arthrex, Inc.
    Inventors: Evan S. Lederman, Reuben Gobezie, Gregory A. Guederian
  • Patent number: 9364333
    Abstract: Methods and systems for transosseous access and repair of joint surface are disclosed wherein one embodiment of the method comprises inserting a reaming rod through a bone tunnel positioned perpendicular to a first joint surface, connecting a reaming blade to the reaming rod, reaming the first joint surface with the reaming blade and removing the reaming blade and the reaming rod. In some embodiments, the reaming blade is configured to be inserted into the joint through an arthroscopic access portal. In some embodiments, an implant system comprises an implant anchor and an implant surface cap and the implant anchor is adapted to couple with a fixation element to anchor the implant anchor in a bone.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: June 14, 2016
    Assignee: The Lonnie and Shannon Paulos Trust
    Inventor: Lonnie E. Paulos
  • Patent number: 9301847
    Abstract: A humeral prosthesis includes a stem component and a head component joined by an inclination component. The inclination component is provided with an opening that is designed to accommodate a pair of expandable tabs extending from a side of a plate. The plate is also provided with a taper extending opposite to the pair of expandable tabs. Inclination angle, radial offset, and version are adjustable and are separately and independently set and fixed.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 5, 2016
    Assignee: Arthrex, Inc.
    Inventors: Gregory A. Guederian, Zhixu Guan
  • Patent number: 9283075
    Abstract: An implant system for total shoulder arthroplasties, hemi shoulder arthroplasties, and “reverse” total shoulder arthroplasties including a humeral stem having an enlarged head portion with interfaces adapted to removably receive various modular interchangeable components, such as articulating liners, spacers, and adapter inserts. The humeral stem functions as a universal platform that may be used in either conventional or “reverse” total shoulder arthroplasties, as well as hemi shoulder arthroplasties, and may remain implanted in place during a revision in which the implant system is converted between the foregoing configurations, for example.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 15, 2016
    Assignee: Zimmer, Inc.
    Inventors: Roy C. Wiley, Brian C. Hodorek
  • Patent number: 9039777
    Abstract: A method of forming an orthopedic implant, the method comprising the steps of providing a first implant component and a second implant component, the first implant component having a stem and a second implant component including a head defining a female taper sized to receive the stem; coupling the stem to the female taper of the head; forming a modular injunction between the stem and head; applying a seal to the modular injunction to limit bodily fluid from contacting the modular injunction; and forming the orthopedic implant.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: May 26, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventors: Mukesh Kumar, Robert M. Ronk, Daniel E. Williamson
  • Publication number: 20150134066
    Abstract: A humerus implant has a stem, cup shaped body and a locking adapter. The cup shaped body is locked to the stem by a key-slot mechanism. The cup shaped body has a center portion and a plurality of flexible first sidewall segments and second sidewall segments, with gaps between neighbored sidewall segments. The first sidewall segments have a plurality of locking fins while the second sidewall segments having a plurality of recesses and holes. The locking adapter has means for fixing the locking adapter to the cup shaped body and a locking ring for locking the sidewall segments into their final positions.
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Applicant: Arthrex, Inc.
    Inventor: Samuel Bachmaier
  • Patent number: 8998994
    Abstract: A shoulder can include a fixed bearing having a generally spherical articulating surface configured to be coupled to a glenoid. The implant can also include a floating bearing member defining a first spherical bearing surface and a second planar articulating bearing surface. The implant can include a stem defining a stem planar bearing surface coupled to the second planar articulating bearing surface. The second planar articulating bearing surface can cooperate with the stem planar bearing surface to enable the floating bearing to translate relative to the stem.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: April 7, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nathan A. Winslow, John M. McDaniel
  • Patent number: 8992623
    Abstract: The present disclosure relates to a stemless shoulder prosthesis comprising a fixation device for fixing the prosthesis to a resected humerus bone, the fixation device comprising a base portion (11, 31, 32) and anchoring means (12, 12?), the base portion (11, 31, 32) having a distal side adapted to contact a resection plane of the bone and a proximal side for carrying a humeral head. The anchoring means (12, 12?) are connected to the distal side of the base portion (11, 31, 32) and adapted to fix the prosthesis to the bone. The anchoring means (12, 12?) define a central axis (C), wherein the anchoring means (12, 12?) comprise a plurality of protrusions (13, 13?, 13a, 13b, 13c) projecting from the base portion (11, 31, 32), each protrusion (13, 13?, 13a, 13b, 13c) extending between an inner end (I) and an outer end (O). The protrusions (13, 13?, 13a, 13b, 13c) define a free central space (F) around the central axis (C).
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: March 31, 2015
    Assignee: Zimmer GmbH
    Inventors: Andrew Hopkins, Levent Kusogullari
  • Patent number: 8974537
    Abstract: A humeral prosthesis includes a stem component and a humeral head component. The humeral head component has a configuration that is similar to the curvature of the humeral head to allow the head to reconstruct the anatomy of the damaged humerus. The stem component is threaded and cannulated and engages the humeral head component. The stem component is configured to be inserted within the humeral diaphyseal channel. When engaged the humeral head component and the stem component form an articulated joint allowing the humeral head component to articulate with respect to the stem component.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: March 10, 2015
    Assignee: Arthrex, Inc.
    Inventor: Peter J. Dreyfuss
  • Publication number: 20150066149
    Abstract: A modular humeral head resurfacing implant including a head, an anchoring stem, and a modular extended articulation flange. The head includes an exterior hemispherical articulating surface defining a terminating rim, an interior concave surface opposite to the exterior articulating surface, and a first coupling mechanism proximate to the terminating rim. The anchoring stem is coupled to the interior concave surface and extends along a stem axis that extends through an axial center of the head. The articulation flange includes a second coupling mechanism configured to cooperate with the first coupling mechanism to fasten the articulation flange to the head and an outer articulating surface that is curved along substantially its entire length and is substantially flush with the exterior hemispherical articulating surface when the articulation flange is fastened to the head.
    Type: Application
    Filed: November 12, 2014
    Publication date: March 5, 2015
    Inventors: Russell Parrott, Nathan A. Winslow
  • Publication number: 20150045898
    Abstract: The system and method serves in facilitating replacement of comminuted bone fractures or portions thereof adjacent bone joints. The system and method employs a prosthesis to replace at least a portion of the comminuted bone fractures. The prosthesis serves in reproducing the articular surface of the portion or portions of the comminuted bone fractures that are replaced. In doing so, the prosthesis serves in restoring joint viability and corresponding articulation thereof.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Inventor: Eduardo Gonzalez-Hernandez
  • Patent number: 8945234
    Abstract: The present invention is directed to a prosthesis for an arthroplasty in a long bone and a methods for achieving a press fit of the metaphyseal element of the prosthesis into a metaphysis of the long bone and the extraction of the prosthesis when indicated. The prosthesis includes a metaphyseal element attached at a proximal end of a stem, the metaphyseal element of the prosthesis is configured to optimize placement of bone marrow about, and in some embodiments, within the metaphyseal element to achieve a press-fit in the metaphysis of the long bone. The prosthesis also includes one or more apertures formed in the joint base member of the prosthesis. Preferably each slot includes a frangible wall which is readily penetrated to accommodate passage of an osteotome of other tool to break the metaphyseal element free from bony in-growth that occurs against the metaphyseal element.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: February 3, 2015
    Assignee: Optimus Orthopedic Designs LLC
    Inventor: C. Scott Humphrey
  • Publication number: 20150025643
    Abstract: A prosthesis may include a stem, a ball stud, an adaptor, and a head. The stem may include a longitudinal axis and a bore having a central axis that is angled relative to the longitudinal axis. The ball stud may include a cylindrical shaft and a ball end. The cylindrical shaft may be received in the bore of the stem. The adaptor may include a tapered outer surface and a ball socket rotatably receiving the ball end of the stud. The head may be rotatably supported by the adaptor and may include a semispherical articulating surface and a female taper rotatably receiving the tapered outer surface of the adaptor.
    Type: Application
    Filed: October 6, 2014
    Publication date: January 22, 2015
    Inventors: KEVIN T. STONE, NICHOLAS M. CORDARO
  • Publication number: 20150025641
    Abstract: A shock-absorbing shoulder replacement system has a glenoid cup suitable for affixing to the glenoid surface of a scapula, ahead positioned so as to bear against the glenoid cup, a rod affixed to or integral with the head on the side of the head opposite the glenoid cup, a humeral component having a shaft suitable for receipt by the humerus and having a portion extending outwardly of the humerus, and a resilient member cooperative between humeral component and the bead such that the head is resiliently mounted in relation to the humeral component. The portion of the humeral component has a receptacle therein suitable for receiving an end of the rod therein. The rod has a threaded surface that can be connected to a nut such that a distance between the head and the humeral component can be adjusted.
    Type: Application
    Filed: November 18, 2013
    Publication date: January 22, 2015
    Inventor: Marcos V. MASSON
  • Patent number: 8936646
    Abstract: A modular humeral head resurfacing implant including a head, an anchoring stem, and a modular extended articulation flange. The head includes an exterior hemispherical articulating surface defining a terminating rim, an interior concave surface opposite to the exterior articulating surface, and a first coupling mechanism proximate to the terminating rim. The anchoring stem is coupled to the interior concave surface and extends along a stem axis that extends through an axial center of the head. The articulation flange includes a second coupling mechanism configured to cooperate with the first coupling mechanism to fasten the articulation flange to the head and an outer articulating surface that is curved along substantially its entire length and is substantially flush with the exterior hemispherical articulating surface when the articulation flange is fastened to the head.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: January 20, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventors: Russell Parrott, Nathan A. Winslow
  • Patent number: 8936645
    Abstract: A surgical process for resurfacing a head of a humerus has the steps of applying a jig over a surface of the head so as to define a separation line between the head and the humeral shaft, sawing along the separation line so as to separate the head and the humeral shaft so as to expose an end of the shaft, applying a resurface implant over an exterior surface of the head, and affixing the head having the resurface implant thereon onto the exposed end of the shaft. The head is shaped so as to smooth the exterior surface of the head prior to the step of applying the jig. A hole is formed through the head so as to extend into the shaft. A stem of the resurface implant extends through the hole in the head and into the hole in the shaft.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: January 20, 2015
    Inventor: Marcos V. Masson
  • Publication number: 20140379088
    Abstract: A partial reverse shoulder prosthesis comprising a humeral stem and a variable angle tray comprising a plate including a through hole including at least two cutouts oriented horizontally across from one another, and a repositionable variable angle stem occupying at least a portion of an internal cavity defined by the through hole and comprising a first washer including threads at least partially defining a first opening, a post at least partially occupying the internal cavity, and a pin insertable into the first opening and having a threaded head sized to engage the threads of at least one of the first washer and the post; wherein the wall of the internal cavity is sized to retain the first washer and at least a portion of the post.
    Type: Application
    Filed: July 23, 2014
    Publication date: December 25, 2014
    Inventor: NICHOLAS KATRANA
  • Publication number: 20140379089
    Abstract: A humerus implant includes a cup shaped body and a locking adapter. The cup shaped body has a center portion and a plurality of flexible first sidewall segments and second sidewall segments, with gaps between neighbored sidewall segments. The first sidewall segments have a plurality of locking fins while the second sidewall segments having a plurality of recesses and holes. The locking adapter has means for fixing the locking adapter to the cup shaped body and a locking ring for locking the sidewall segments into their final positions.
    Type: Application
    Filed: July 8, 2013
    Publication date: December 25, 2014
    Inventor: Samuel Bachmaier
  • Patent number: 8906103
    Abstract: A prosthesis may include a stem, an adaptor and a head. The stem may include a longitudinal axis. The adaptor may include a first taper having a first taper axis of symmetry. The head may be rotatably supported by the adaptor and may include a semispherical articulating surface defined by a central axis of symmetry that is angled relative to the first taper axis of symmetry. The head may be coupled to the first taper and may be positionable relative to the stem through relative rotation between the head and the stem about the first taper axis of symmetry to adjust a radial offset of the head relative to the longitudinal axis of the stem. The head may be adapted to be received in a glenoid cavity of a scapula.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: December 9, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Kevin T. Stone, Nicholas M. Cordaro
  • Publication number: 20140358239
    Abstract: A prosthesis is provided and includes a central body having an outer surface and a longitudinal axis extending between a first end having an opening operable to receive an installation tool and a second end spaced apart from the first end. The outer surface extends between and connects the first end and the second end and defines the length of the central body. The prosthesis additionally includes a plurality of arms each attached to the outer surface of the central body and having an outer shape defined by a porous coating independent from a shape of the central body. The porous coating completely covers the outer surface of the central body between the first end and the second end.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Nicholas J. Katrana, Nathan A. Winslow
  • Publication number: 20140358240
    Abstract: A prosthesis is provided and includes a central body having an outer surface and a longitudinal axis extending between a first end having an opening operable to receive an installation tool and a second end spaced apart from the first end. The outer surface extends between and connects the first end and the second end and defines the length of the central body. The prosthesis additionally includes a plurality of arms each attached to the outer surface of the central body and having an outer shape defined by a porous coating independent from a shape of the central body. The porous coating completely covers the outer surface of the central body between the first end and the second end.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Nicholas J. Katrana, Nathan A. Winslow
  • Publication number: 20140343680
    Abstract: 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). A tool kit for preparing a humerus to receive a prosthesis is also disclosed.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Jack F. Long, Michael E. Coon
  • Patent number: 8882776
    Abstract: A kit for use in performing joint arthroplasty, the kit including a prosthesis to be fitted to a long bone and a cutting guide. The cutting guide including a housing having an attachment mechanism adapted to couple the housing to the bone during arthroplasty and a wall defining a continuous path and a blade for cutting the bone, the blade fitting within and sliding along the continuous path such that the blade cuts the bone in a shape matching the second body articulating surface.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: November 11, 2014
    Assignee: DePuy Synthes Products, LLC
    Inventors: Jack F Long, Clinton E Kehres, David M Warlop
  • Patent number: 8876908
    Abstract: A prosthesis is provided and may include a central body having a longitudinal axis and an opening that receives an installation tool. The prosthesis may additionally include a plurality of arms each including a solid body attached to the central body and a porous coating covering the solid body. The porous coating may provide each of the plurality of arms with an outer shape having a different shape than the solid body.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 4, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Nicholas J. Katrana, Nathan A. Winslow
  • Patent number: 8876909
    Abstract: A method for centering a stem of an implant at an implantation site. The method includes implanting at the implantation site the implant having a sleeve rigidly mounted to the stem of the implant, the stem extends through an interior area of the sleeve. The method further includes compressing the sleeve by applying force to the sleeve to expand a mesh portion of the sleeve outward from the stem and into engagement with sidewalls of the implantation site to thereby center the stem at the implantation site.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: November 4, 2014
    Assignee: Biomet Manufacturing, LLC
    Inventors: Jason D. Meridew, John R. White, Mark A. Bollinger
  • Patent number: 8876907
    Abstract: A prosthetic glenoid component has a body having a concave bearing surface and a convex glenoid contacting surface. First and second pegs extend outwardly from adjacent respective first and second ends of the bone contacting surface of the body, the first and second pegs have portions with a first diameter at the bone contacting surface extending for a first length and a second diameter extending from the first diameter for a second length, the first diameter larger than the second diameter. A third peg extends outwardly from the bone contacting surface intermediate the first and second pegs. The third peg has a third diameter greater than the second diameter portion of the first and second pegs and a third length greater than the first length of the first diameter portion of the first and second pegs. The third length is less than the sum of the first and second lengths.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: November 4, 2014
    Assignee: Howmedica Osteonics Corp.
    Inventors: Alexandre A. N. Baptista, Jeffrey Duncan Sander, Shawn Michael Kroll, Gerald Rosenberg
  • Publication number: 20140324174
    Abstract: A system for preparing an implant for implantation includes a trial implant including a first dialable component and a datum, a final implant including a second dialable component, and an instrument including (i) a base assembly configured to support the trial implant so that the datum is in a predetermined orientation, (ii) a fixture supported on the base assembly, the fixture including a domed element, and an alignment tool configured to engage the first dialable component when the trial implant is supported by said base assembly, and (iii) a locking assembly including a guide member defining a spherical surface for nested engagement with said domed element, the locking assembly configured to record the angular orientation of said alignment tool relative to said fixture with said alignment tool engaged with the first dialable component, and to replicate the recorded angular orientation with the alignment tool and a second dialable component.
    Type: Application
    Filed: July 14, 2014
    Publication date: October 30, 2014
    Applicant: DEPUY SYNTHES PRODUCTS, LLC
    Inventors: Conrad Klotz, Daren Deffenbaugh, Trent Wilkinson, Edmund Frazee
  • Patent number: 8870963
    Abstract: The system and method serves in facilitating replacement of comminuted bone fractures or portions thereof adjacent bone joints. The system and method employs a prosthesis to replace at least a portion of the comminuted bone fractures. The prosthesis serves in reproducing the articular surface of the portion or portions of the comminuted bone fractures that are replaced. In doing so, the prosthesis serves in restoring joint viability and corresponding articulation thereof.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: October 28, 2014
    Assignee: Toby Orthopaedics, Inc.
    Inventor: Eduardo Gonzalez-Hernandez
  • Publication number: 20140296988
    Abstract: 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.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Inventors: Nathan A. WINSLOW, Russell F. WARREN, Donald H. LEE, Kevin T. Stone, Nicholas M. Cordaro
  • Patent number: 8845742
    Abstract: The present disclosure relates to a stemless shoulder prosthesis comprising a fixation device for fixing the prosthesis to a resected humerous bone, the fixation device comprising a base portion and anchoring means the base portion having a distal side adapted to contact a resection plane of the bone and a proximal side for carrying a humeral head. The anchoring means are connected to the distal side of the base portion and adapted to fix the prosthesis to the bone. The anchoring means define a central axis perpendicular to the distal side of the base portion and a free central space around the central axis.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 30, 2014
    Assignee: Zimmer GmbH
    Inventors: Levent Kusogullari, Andrew Hopkins