Patents Assigned to Zimmer GmbH
  • Patent number: 10322004
    Abstract: A prosthetic femoral component (10) for an orthopaedic prosthesis has a canted patellar groove adapted for optimal patella/component interaction, with the component configured to have a medial or lateral cant depending upon the method of implantation. The femoral component defines a distal “component transverse plane,” which is a plane tangent to the distal-most points of the component condyles (12, 14). In a “mechanical” implantation, the component transverse plane is substantially normal to the mechanical femoral axis of the femur after the component has been implanted. Where the femoral component is configured to be “mechanically oriented” in this manner, the component has a medially canted patellar groove. On the other hand, an “anatomic” implantation is one in which, after the component has been implanted, the component transverse plane is substantially parallel to an “anatomic” transverse plane.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: June 18, 2019
    Assignee: ZIMMER GMBH
    Inventors: Cosimo Donno, Adam D. Henderson
  • Patent number: 10130483
    Abstract: A cemented tibial prosthesis having a bone-contacting surface with a porous outer rim. With the bone-contacting surface seated against a resected proximal tibia, bone cement or another suitable adhesive will travel into the pores of the porous outer rim to enhance the connection between the tibial prosthesis and the tibia.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: November 20, 2018
    Assignee: Zimmer GmbH
    Inventors: Andrew J. Jukes, Rosemary E. Thompson, Jorg Zimmermann
  • Patent number: 10076371
    Abstract: The present disclosure provides an orthopedic plate, in particular a plate for osteosynthesis. The plate (31) comprising a body (33). The body (33) has a distal surface (15) adapted to be arranged facing the fractured bone and a proximal surface (13) adapted to be arranged facing away from the fractured bone. The surfaces (13, 15) define a distal and a proximal face of the plate (31), respectively. The body (33) further has a length measured along a longitudinal direction (23), a width measured along a transverse direction (51), and a thickness measured from the distal surface (15) to the proximal surface (13). The body (33) comprises two longitudinal plate ends (35) delimiting the body (33) in the longitudinal direction (23). The body (33) comprises at least one slotted longitudinal section (47). The slotted section (47) extends over a part of the length of the body (33), wherein within the slotted section (47) at least one slot (37) is arranged.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: September 18, 2018
    Assignee: Zimmer GmbH
    Inventors: Jordan Velikov, Thomas Teschke
  • Patent number: 9993275
    Abstract: The invention relates to a surgical locking screw for fastening bone parts in the event of a heel fracture, comprising a front end, a rear driving end having a drive for turning the locking screw, and an external thread, which has a constant thread pitch continuously over the axial extent of the external thread, wherein a major diameter of the external thread is constant in a first axial segment of the locking screw and increases with increasing distance from the front end in a second axial segment adjacent to the first axial segment in the direction of the rear end, wherein a minor diameter of the external thread is constant in the first and second axial segments, wherein the external thread extends, at least approximately, axially continuously over the entire axial extent of the locking screw, and wherein the minor diameter of the external thread extends over the entire axial extent of the external thread.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: June 12, 2018
    Assignee: Zimmer GmbH
    Inventors: Alexander Mildner, Vladko Kotuljac
  • Patent number: 9968390
    Abstract: An implantable device is described, comprising an implant (12), wherein the implant comprises at least one opening (22), at least one anchoring element (14) for fixing the implant to at least one bone, wherein the respective anchoring element comprises a shank (20) and a head (18) and wherein at least a part of the shank can be guided through the respective opening while the head can be seated in the respective opening, and a locking mechanism with a fixation element (16) and a radially deformable annular element (26) that can be pressed against the head of the anchoring element by actuation of the fixation element, in order to fix the head in the opening of the implant. The opening of the implant has a recess (28) having a support surface (24) for the head of the anchoring element.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 15, 2018
    Assignee: ZIMMER GMBH
    Inventor: Markus Kuster
  • Patent number: 9867708
    Abstract: A prosthetic femoral component (10) for an orthopedic prosthesis has a canted patellar groove adapted for optimal patella/component interaction, with the component configured to have a medial or lateral cant depending upon the method of implantation. The femoral component defines a distal “component transverse plane,” which is a plane tangent to the distal-most points of the component condyles (12, 14). In a “mechanical” implantation, the component transverse plane is substantially normal to the mechanical femoral axis of the femur after the component has been implanted. Where the femoral component is configured to be “mechanically oriented” in this manner, the component has a medially canted patellar groove. On the other hand, an “anatomic” implantation is one in which, after the component has been implanted, the component transverse plane is substantially parallel to an “anatomic” transverse plane.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: January 16, 2018
    Assignee: ZIMMER GMBH
    Inventors: Cosimo Donno, Adam D. Henderson
  • Patent number: 9775655
    Abstract: The present disclosure provides an intramedullary nail assembly comprising an intramedullary nail and an insert sleeve. The intramedullary nail has a nail longitudinal axis and comprises a cavity being accessible from a nail proximal end, the cavity being confined by a nail inner wall, the cavity having a cavity longitudinal axis. The nail inner wall is provided with a predominantly longitudinal groove and a predominantly transverse groove, the transverse groove and the longitudinal groove communicating with each other at a junction. The insert sleeve is configured to be received within the cavity and comprises a cam radially protruding from the insert sleeve and sized to mate with each of the longitudinal and transverse grooves such that the cam is displaceable within the longitudinal groove from a longitudinal groove proximal end to the junction and is further displaceable towards a terminal end of the transverse groove.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: October 3, 2017
    Assignee: ZIMMER GMBH
    Inventors: Andy Schwammberger, Reto Senger
  • Patent number: 9763797
    Abstract: The present disclosure relates to a shoulder prosthesis comprising a glenoidal component having a glenoidal articulation surface and a humeral component having a humeral articulation surface, and a separate mobile glenohumeral bearing component comprising a glenoidal bearing surface and a humeral bearing surface arranged on opposite sides of the glenohumeral bearing component. The glenoidal bearing surface contacts in an implanted state the glenoidal articulation surface and/or the humeral bearing surface contacts in an implanted state the humeral articulation surface. At least one of the glenoidal and humeral bearing surfaces is concave. The glenohumeral bearing component is disposed in an implanted state between the glenoidal component and the humeral component. Both the glenoidal and humeral articulation surfaces are convex.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: September 19, 2017
    Assignee: ZIMMER GMBH
    Inventors: Andrew Hopkins, Philippe Hardy
  • Patent number: 9763790
    Abstract: The invention relates to a shaft for a femoral neck prosthesis, which comprises an anchoring area (27, 29) which is arranged inside the femur in order to anchor the prosthesis into bone, a head area which is axially adjacent to the anchoring area (27, 29) on the proximal side, said head area comprising a device (13) which is connected to the prosthesis head (15), in addition to a distal end which is arranged opposite the head area in the axial direction of the anchoring area (27, 29). The invention is characterised in that the maximum cross-sectional dimension of the head area is at the most equal and, in particular, smaller than the maximum diameter of the anchoring area (27, 29), in such a manner that the maximum cross-sectional dimension of the shaft (11) is in the anchoring area (27, 29).
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 19, 2017
    Assignee: Zimmer GmbH
    Inventors: Guido Grappiolo, Roland Willi
  • Patent number: 9763677
    Abstract: Rasps for preparing bones of various patients to receive a prosthetic implant and a method for using the same. Multiple rasps may be provided as a set. Within the set, the rasps generally correspond to the size and shape of a single prosthetic implant, such as a prosthetic femoral hip stem, and have a range of bone removal and bone compression capabilities to account for unique bone characteristics of the various patients. A surgeon may select a desired rasp from the set provided depending on the patient's unique bone characteristics.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: September 19, 2017
    Assignee: Zimmer GmbH
    Inventors: Sergio Romagnoli, Roland Willi
  • Patent number: 9745462
    Abstract: Certain embodiments described herein are directed to polymer compositions including a base material, a secondary material and an antioxidant. The composition also includes crystalline regions and amorphous regions with the crystalline regions comprising at least 62% by volume of the composition. In some embodiments, the base material is an ultra high molecular weight polyethylene material and the secondary material is a polyethylene material that is different than the base material.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: August 29, 2017
    Assignee: Zimmer GmbH
    Inventors: Ming C. Shen, Werner Schneider
  • Patent number: 9707020
    Abstract: A femur fixation device including an elongated nail configured for insertion into the medullary canal of the femur and a buttress element extending from the elongated nail. The buttress element is configured to reinforce the lesser trochanter region of the femur and assist in stabilizing the head portion of the femur.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: July 18, 2017
    Assignee: Zimmer GmbH
    Inventor: Kyu Hyun Yang
  • Patent number: 9668794
    Abstract: The present disclosure relates to bone plates that are configured for use with bones having periprosthetic fractures. For example, in the event that a proximal femur is fractured in an area that is adjacent to a prosthetic component, such as a femoral stem used in a hip replacement, the periprosthetic bone plates of the present invention may be used. In one exemplary embodiment, the periprosthetic bone plates include a periprosthetic zone having a plurality of central apertures and a plurality of outer apertures that are offset from the central apertures. The periprosthetic zone may further include a plurality of indentations, each indentation extending longitudinally between adjacent outer apertures to narrow a width of the bone plate.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 6, 2017
    Assignee: Zimmer GMBH
    Inventors: Markus Kuster, Jordan Velikov, Simona Paganetto
  • Patent number: 9662217
    Abstract: A knee prosthesis has a femoral component with a medial condyle defining a constant bearing spacing relative to a central sagittal component plane SP, and a lateral condyle defining divergent bearing spacing from the central sagittal component plane along an extension-to-flexion path. High congruence between the medial articulation surfaces creates a pivot point for external rotation at the medial contact area, while lower congruence in the lateral articulation surfaces allows the lateral femoral condyle to track anteriorly and posteriorly during flexion. The amount of lateral condyle bearing spacing divergence is calculated to produce a substantially linear anteroposterior motion profile of the lateral femoral condyle upon the lateral tibia articular surface throughout a wide range of flexion.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: May 30, 2017
    Assignee: Zimmer GmbH
    Inventors: Marco A. H. Heggendorn, Matthias Schäpper, Roger Scherrer
  • Patent number: 9655731
    Abstract: A cemented tibial prosthesis having a bone-contacting surface with a porous outer rim. With the bone-contacting surface seated against a resected proximal tibia, bone cement or another suitable adhesive will travel into the pores of the porous outer rim to enhance the connection between the tibial prosthesis and the tibia.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 23, 2017
    Assignee: Zimmer GmbH
    Inventors: Andrew J. Jukes, Rosemary E. Thompson, Jörg Zimmermann
  • Patent number: 9642659
    Abstract: The present disclosure relates to an insert sleeve (19) designed for being inserted into a through hole (17) of an implant (11), comprising a body (21) with a through hole (23) defining an axial direction (29) for receiving a bone anchoring element (25), in particular a bone screw, said body (21) being made of a material having a first modulus of elasticity and including multiple recesses (27) arranged in circumferential direction around said through hole (23) of said insert sleeve (19) for reducing a stiffness of said insert sleeve (19) in a direction transverse (31, 33) to said axial direction (29). At least one of said recesses (27) is filled with a filler material (41) having a second modulus of elasticity different from said first modulus of elasticity.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: May 9, 2017
    Assignee: Zimmer GMBH
    Inventors: Jordan Velikov, Thomas Teschke
  • Patent number: 9642656
    Abstract: The invention relates to an intramedullary locking bone screw for fixing the metatarsophalangeal joint of the big toe in foot surgery that can be completely received in the bone, said locking bone screw extending along a longitudinal axis (L), with a first outside thread section (6) having a first thread pitch and with at least one second outside thread section (7), preferably designed to be self-tapping, having a pitch that is different from the first thread pitch.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: May 9, 2017
    Assignee: ZIMMER GMBH
    Inventors: Vladko Kotuljac, Michael Vitek
  • Patent number: 9597129
    Abstract: An orthopedic implant assembly is disclosed for the treatment of fracture or other trauma to a long bone. The implant assembly includes an intramedullary nail and a lag screw that extends through a transverse bore of the intramedullary nail. The intramedullary nail includes an elongated body and one or more enlarged portions positioned adjacent to the transverse bore to reinforce the intramedullary nail.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: March 21, 2017
    Assignee: Zimmer GmbH
    Inventors: Samuel Keller, Jordan Velikov, Reto Senger
  • Patent number: 9562008
    Abstract: A process for the recovery of ?-caprolactam from extract water of polycaprolactam obtained by hydrolytic polymerization, wherein the extract water is concentrated, subsequently contained oligomers are depolymerized, non-depolymerizable impurities are separated, water and low-boiling impurities are removed, wherein for adjusting the purity of the recovered ?-caprolactam and the energy consumption used for the process a part of the product is removed from the process as intermediate products.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: February 7, 2017
    Assignee: Technip Zimmer GmbH
    Inventors: Andreas Bormann, Manfred Albrecht, Franz Samlitschka
  • Patent number: 9532818
    Abstract: An orthopedic nail of generally rod-like shape having a through hole extending from a first side to a second side of the orthopedic nail and being adapted to receive a screw and/or a pin, a first end of the through hole at the first side defining a rim region, wherein at least one surface notch is provided in the rim region at and restricted to an outer circumferential surface of the orthopedic nail, the surface notch being arranged transverse to a nail axis of the orthopedic nail, a width (W) of the surface notch in the direction of the nail axis being smaller than a diameter of the through hole.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: January 3, 2017
    Assignee: Zimmer GmbH
    Inventors: Andreas E. Schwammberger, Jordan Velikov, Rolf Dittmann