ES2085604T3 - Tuerca para union a rosca para implantes. - Google Patents

Tuerca para union a rosca para implantes.

Info

Publication number
ES2085604T3
ES2085604T3 ES92810079T ES92810079T ES2085604T3 ES 2085604 T3 ES2085604 T3 ES 2085604T3 ES 92810079 T ES92810079 T ES 92810079T ES 92810079 T ES92810079 T ES 92810079T ES 2085604 T3 ES2085604 T3 ES 2085604T3
Authority
ES
Spain
Prior art keywords
nut
housing part
implants
locking cams
contact shoulder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES92810079T
Other languages
English (en)
Inventor
Walter Moser
Roland Willi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Protek AG
Sulzer Medizinaltechnik AG
Original Assignee
Protek AG
Sulzer Medizinaltechnik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Protek AG, Sulzer Medizinaltechnik AG filed Critical Protek AG
Application granted granted Critical
Publication of ES2085604T3 publication Critical patent/ES2085604T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30749—Fixation appliances for connecting prostheses to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/041—Releasable devices
    • F16B37/043—Releasable devices with snap action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30495—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking ring
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/305—Snap connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
    • A61F2002/30571—Leaf springs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Transplantation (AREA)
  • Cardiology (AREA)
  • Mechanical Engineering (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Dental Prosthetics (AREA)
  • Transmission Devices (AREA)

Abstract

LA INVENCION MUESTRA UNA TUERCA (1) PARA ATORNILLAMIENTOS IMPLANTADOS CON UNA ESPALDILLA DE PRESION (4) SALIENTE RADIALMENTE QUE PRESIONA AXIALMENTE CONTRA LA PIEZA DE LA CARCASA (5), CON UNA ROSCA INTERIOR APROPIADA PARA EL TORNILLO (12) Y CON ELEMENTOS MOLDEADOS (14) SOBRE EL LADO APARTADO DE LA PIEZA DE LA CARCASA PARA APLICAR UN INSTRUMENTO PARA APRETAR EL TORNILLO (1). SEGUN LA INVENCION SE FORMAN RESORTES DE LAMINA SALIENTES (2) EN DIRECCION AXIAL AL TORNILLO (1) QUE TERMINAN COMO GATILLOS DE LEVA (3). POR UNA PRESION DEL TORNILLO (1) SOBRE LA PIEZA DE LA CARCASA (5) SE ENCLAVAN LOS GATILLOS DE LEVA (3), DESCANSANDO LA ESPALDILLA DE PRESION (4) EN UNA ESCOTADURA (6) JUNTO A LA PIEZA DE LA CARCASA (5) PARA EVITAR UN DESPRENDIMIENTO DEL TORNILLO (1) DE LA PIEZA DE LA CARCASA.
ES92810079T 1991-03-07 1992-02-05 Tuerca para union a rosca para implantes. Expired - Lifetime ES2085604T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH69291 1991-03-07

Publications (1)

Publication Number Publication Date
ES2085604T3 true ES2085604T3 (es) 1996-06-01

Family

ID=4192932

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92810079T Expired - Lifetime ES2085604T3 (es) 1991-03-07 1992-02-05 Tuerca para union a rosca para implantes.

Country Status (5)

Country Link
US (1) US5330535A (es)
EP (1) EP0502815B1 (es)
AT (1) ATE137103T1 (es)
DE (1) DE59206078D1 (es)
ES (1) ES2085604T3 (es)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9212879U1 (de) * 1992-09-24 1994-01-27 Waldemar Link GmbH & Co, 22339 Hamburg Kniegelenkendoprothese zum Ersatz der Schienbein-Gelenkflächen
FR2702368B1 (fr) * 1993-03-10 1995-06-09 Medinov Sa Implant tibial pour prothèse du genou.
EP0666068B1 (de) * 1994-02-07 1999-09-08 Sulzer Orthopädie AG Aussenschale zu einer mindestens zweischaligen Gelenkpfanne einer Hüftgelenkprothese und Hüftgelenkprothese mit einer derartigen Aussenschale
DE29506419U1 (de) * 1995-04-13 1996-08-14 Waldemar Link GmbH & Co, 22339 Hamburg Endoprothese, insbesondere für das Sternum-Clavicular-Gelenk
ATE218053T1 (de) * 1995-06-21 2002-06-15 Sulzer Orthopaedie Ag Tibiaplattform zu einer kniegelenkprothese und kniegelenkprothese mit einer derartigen tibiaplattform
US5755808A (en) * 1996-06-27 1998-05-26 Joint Medical Products, Corporation Connector plug for multi-component orthopedic implant
EP0832620A3 (en) * 1996-09-25 1999-01-13 Biomet, Inc. Modular component connector
TW385883U (en) * 1997-05-29 2000-03-21 Whitaker Corp System for fastening an assembly to a surface
FR2769056B1 (fr) * 1997-09-30 1999-11-12 Schneider Electric Sa Dispositif de fixation d'un ecrou dans une piece, adaptateur d'accessoire pour appareil de coupure, appareil de coupure equipe d'un tel adaptateur et procede pour realiser ce dispositif
US6086614A (en) * 1998-01-23 2000-07-11 Sulzer Orthopedics Inc. Orthopedic prosthesis having anti-backout screw
ATE268579T1 (de) 1998-10-15 2004-06-15 Synthes Ag Teleskopierende wirbelprothese
US6090146A (en) * 1999-06-16 2000-07-18 Bristol-Myers Squibb Company Fastener for a modular implant
FR2805151B1 (fr) * 2000-02-21 2003-08-15 Cremascolli Ortho S A Prothese trapezo-metacarpienne a mobilite amelioree
US6413259B1 (en) 2000-12-14 2002-07-02 Blackstone Medical, Inc Bone plate assembly including a screw retaining member
AR038680A1 (es) 2002-02-19 2005-01-26 Synthes Ag Implante intervertebral
US7001389B1 (en) 2002-07-05 2006-02-21 Navarro Richard R Fixed and variable locking fixation assembly
MXPA05004596A (es) 2002-10-28 2005-08-16 Blackstone Medical Inc Montaje de placa para hueso proporcionado con mecanismos de cierre roscado.
US8172885B2 (en) 2003-02-05 2012-05-08 Pioneer Surgical Technology, Inc. Bone plate system
AU2003201614B2 (en) 2003-02-06 2008-02-14 Synthes Gmbh Intervertebral implant
DE602004001398T2 (de) * 2003-03-20 2007-06-14 Stryker Trauma S.A. Knochenverbindungsvorrichtung
WO2004084742A1 (en) 2003-03-24 2004-10-07 Theken Surgical Llc Spinal implant adjustment device
US7857839B2 (en) 2003-09-03 2010-12-28 Synthes Usa, Llc Bone plate with captive clips
US7909860B2 (en) 2003-09-03 2011-03-22 Synthes Usa, Llc Bone plate with captive clips
US20050049595A1 (en) 2003-09-03 2005-03-03 Suh Sean S. Track-plate carriage system
US8900277B2 (en) 2004-02-26 2014-12-02 Pioneer Surgical Technology, Inc. Bone plate system
US7740649B2 (en) 2004-02-26 2010-06-22 Pioneer Surgical Technology, Inc. Bone plate system and methods
US7544208B1 (en) 2004-05-03 2009-06-09 Theken Spine, Llc Adjustable corpectomy apparatus
US7455695B2 (en) * 2004-06-28 2008-11-25 Depuy Products, Inc. Modular prosthesis and locking nut therefor
US7674296B2 (en) 2005-04-21 2010-03-09 Globus Medical, Inc. Expandable vertebral prosthesis
SI1764014T1 (sl) 2005-09-20 2009-04-30 Nestec Sa Naprava za pripravo napitka na osnovi termičnega bloka s kuhalnimi komorami
US20100305704A1 (en) 2006-02-27 2010-12-02 Synthes Gmbh Intervertebral implant with fixation geometry
AU2007333133B2 (en) * 2006-12-12 2013-07-04 Exactech, Inc. Constrained acetabular cup liner locking ring and polyethylene liner congruency feature
DE102007028087B4 (de) 2007-06-11 2014-05-15 Aesculap Ag Modularer Implantatteil und Kniegelenkprothese
US8361126B2 (en) 2007-07-03 2013-01-29 Pioneer Surgical Technology, Inc. Bone plate system
US8623019B2 (en) 2007-07-03 2014-01-07 Pioneer Surgical Technology, Inc. Bone plate system
BRPI0820172A2 (pt) 2007-11-16 2015-06-16 Synthes Gmbh Implante intervertebral de perfil baixo
DE102008014837A1 (de) 2008-03-07 2009-09-10 Aesculap Ag Medizinisches Implantat und Kniegelenkendoprothese
CN101551089B (zh) * 2008-03-31 2011-05-04 海洋王照明科技股份有限公司 防松脱锁紧结构及具有该锁紧结构的投射灯
JP2012508044A (ja) 2008-11-07 2012-04-05 ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング 脊椎椎体間スペーサ及び連結プレートアセンブリ
US8721723B2 (en) 2009-01-12 2014-05-13 Globus Medical, Inc. Expandable vertebral prosthesis
US8246664B2 (en) * 2009-02-24 2012-08-21 Osteomed Llc Multiple bone fusion plate
US8529608B2 (en) * 2009-04-28 2013-09-10 Osteomed Llc Bone plate with a transfixation screw hole
DE102009034665A1 (de) * 2009-07-24 2011-01-27 Neumayer Tekfor Holding Gmbh Befestigungsvorrichtung und Befestigungssystem
US8870880B2 (en) 2010-04-12 2014-10-28 Globus Medical, Inc. Angling inserter tool for expandable vertebral implant
US8282683B2 (en) 2010-04-12 2012-10-09 Globus Medical, Inc. Expandable vertebral implant
US9301850B2 (en) 2010-04-12 2016-04-05 Globus Medical, Inc. Expandable vertebral implant
US8591585B2 (en) 2010-04-12 2013-11-26 Globus Medical, Inc. Expandable vertebral implant
US9241809B2 (en) 2010-12-21 2016-01-26 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US9220604B2 (en) 2010-12-21 2015-12-29 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US9101479B2 (en) 2013-03-15 2015-08-11 Depuy (Ireland) Prosthetic components and methods for joint line access
US9603649B2 (en) 2013-03-15 2017-03-28 Depuy Ireland Unlimited Company Instruments for use in disassembling implants
US9138321B2 (en) 2013-03-15 2015-09-22 Depuy (Ireland) Prosthetic components with secondary retention
US9867718B2 (en) 2014-10-22 2018-01-16 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
KR101683581B1 (ko) * 2014-12-18 2016-12-09 주식회사 코렌텍 오프셋 어뎁터 유닛
US11877779B2 (en) 2020-03-26 2024-01-23 Xtant Medical Holdings, Inc. Bone plate system
CN111637129B (zh) * 2020-05-22 2022-01-04 海信视像科技股份有限公司 一种电视机

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CH638391A5 (en) * 1979-08-07 1983-09-30 Sulzer Ag Endoprosthesis for the head of the femur
US4822366A (en) * 1986-10-16 1989-04-18 Boehringer Mannheim Corporation Modular knee prosthesis
US4936853A (en) * 1989-01-11 1990-06-26 Kirschner Medical Corporation Modular knee prosthesis

Also Published As

Publication number Publication date
EP0502815B1 (de) 1996-04-24
DE59206078D1 (de) 1996-05-30
ATE137103T1 (de) 1996-05-15
EP0502815A1 (de) 1992-09-09
US5330535A (en) 1994-07-19

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