FR2800269A1 - Femoral stem for a hip prosthesis comprises a prosthetic foot with distal and proximal ends and implanted in the medullar channel of a femur, a sheath of compressible elastic material, etc. - Google Patents
Femoral stem for a hip prosthesis comprises a prosthetic foot with distal and proximal ends and implanted in the medullar channel of a femur, a sheath of compressible elastic material, etc. Download PDFInfo
- Publication number
- FR2800269A1 FR2800269A1 FR9913652A FR9913652A FR2800269A1 FR 2800269 A1 FR2800269 A1 FR 2800269A1 FR 9913652 A FR9913652 A FR 9913652A FR 9913652 A FR9913652 A FR 9913652A FR 2800269 A1 FR2800269 A1 FR 2800269A1
- Authority
- FR
- France
- Prior art keywords
- insert
- femoral stem
- proximal end
- hemispherical cap
- sheath
- 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.)
- Granted
Links
Classifications
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- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
-
- 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
- A61F2/32—Joints for the hip
-
- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30069—Properties of materials and coating materials elastomeric
- A61F2002/3007—Coating or prosthesis-covering structure made of elastic material, e.g. of elastomer
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30084—Materials having a crystalline structure
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
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- 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
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- 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
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
- A61F2002/30349—Conically- or frustoconically-shaped protrusion and recess the male and female complementary cones being of different conicities, i.e. for reducing the contact area
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
-
- 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
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30362—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
- A61F2002/3037—Translation along the common longitudinal axis, e.g. piston
- A61F2002/30372—Translation along the common longitudinal axis, e.g. piston with additional means for limiting said translation
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- 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
- A61F2002/30448—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
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- 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
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- 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
- A61F2002/30474—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using an intermediate sleeve interposed between both prosthetic parts to be coupled
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- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
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- 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
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- A61F2/02—Prostheses implantable into the body
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- A61F2/02—Prostheses implantable into the body
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- A61F2/02—Prostheses implantable into the body
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- A61F2/02—Prostheses implantable into the body
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- 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
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- 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
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/365—Connections of heads to necks
-
- 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
-
- 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
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
-
- 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
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
La présente invention concerne les tiges fémorales pour prothèses de hanche, et plus particulièrement les tiges fémorales comportant, en partie mâle de la rotule cotyloïdienne destinée à remplacer la tête de fémur endommagée suite par exemple à une maladie, un accident, etc., une tête hémisphérique en un matériau comme une céramique ou analogue. The present invention relates to femoral stems for hip prostheses, and more particularly to femoral stems comprising, partly male of the acetabular patella intended to replace the head of femur damaged following for example a disease, an accident, etc., a head hemispherical in a material like ceramic or the like.
Il est tout d'abord rappelé que certaines têtes hémisphériques de rotules cotyloïdiennes pour prothèses de hanche sont réalisées en matériau métallique, d'autres en céramique ou analogue, alors que les pattes de prothèse aptes à être implantées dans le canal médullaire du fémur et sur lesquelles les têtes hémisphériques doivent être adaptées, sont réalisées en matériau métallique. En conséquence, si l'adaptation d'une tête hémisphérique de rotule cotyloïdienne en matériau métallique sur une patte fémorale ne pose pas de problèmes techniques majeurs, il n'en est pas de même pour les têtes hémisphériques en céramique ou analogue. It is first of all recalled that certain hemispherical heads of acetabular ball joints for hip prostheses are made of metallic material, others of ceramic or the like, while the prosthetic legs capable of being implanted in the medullary canal of the femur and on which the hemispherical heads must be adapted, are made of metallic material. Consequently, if the adaptation of a hemispherical head of an acetabular ball joint of metallic material on a femoral leg does not pose major technical problems, it is not the same for the hemispherical heads of ceramic or the like.
Cependant, comme les têtes de prothèses en céramique présentent des avantages par rapport aux têtes métalliques, des solutions ont été recherchées pour résoudre les problèmes d'adaptation de ces têtes sur les pattes fémorales métalliques. However, as the heads of ceramic prostheses have advantages compared to metal heads, solutions have been sought to solve the problems of adaptation of these heads on the metal femoral legs.
Parmi les solutions qui ont donné de bons résultats, on peut par exemple citer la réalisation décrite dans le FR-A-2 580 170. Among the solutions which have given good results, mention may for example be made of the embodiment described in FR-A-2 580 170.
Dans ce document, il est décrit une tige fémorale pour prothèse de hanche, comprenant une patte de prothèse comportant deux extrémités respectivement distale et proximale, cette patte étant apte à être implantée dans le canal médullaire d'un fémur par son extrémité distale, son extrémité proximale demeurant en dehors dudit canal étant conformée en tronc de cône, un manchon comportant, d'une part un logement en creux en forme de tronc de cône sensiblement complémentaire de l'extrémité proximale de la patte de prothèse de façon que ce manchon puisse être emmanché sur cette extrémité proximale par emboîtement conique mâle- femelle, et d'autre part une surface extérieure de forme cylindrique, la surface extérieure cylindrique étant bordée à une extrémité par un anneau d'épaulement défini dans un plan perpendiculaire à l'axe du logement en tronc de cône, et une calotte hémisphérique comportant une cavité cylindrique de forme sensiblement complémentaire de la surface extérieure cylindrique du manchon, la cavité débouchant par un méplat réalisé sur la calotte, ce méplat étant apte à reposer sur l'anneau d'épaulement du manchon. In this document, a femoral stem for hip prosthesis is described, comprising a prosthetic leg having two ends respectively distal and proximal, this leg being able to be implanted in the medullary canal of a femur by its distal end, its end proximal remaining outside said channel being shaped as a truncated cone, a sleeve comprising, on the one hand a hollow housing in the form of a truncated cone substantially complementary to the proximal end of the prosthetic tab so that this sleeve can be fitted on this proximal end by male-female conical fitting, and on the other hand an external surface of cylindrical shape, the external cylindrical surface being bordered at one end by a shoulder ring defined in a plane perpendicular to the axis of the housing in a truncated cone, and a hemispherical cap comprising a cylindrical cavity of substantially shaped complementary to the cylindrical outer surface of the sleeve, the cavity emerging through a flat formed on the cap, this flat being able to rest on the shoulder ring of the sleeve.
Dans la réalisation selon ce document, la liaison entre la calotte et le manchon était obtenue par une soudure ou analogue. Or, malgré toutes les précautions qui pouvaient être prises lors de la fabrication de ces prothèses, ce type de liaison ne permettait pas toujours de compenser, par exemple, les différences de tolérances d'usinage et, par sécurité, il fallait éliminer un nombre relativement important de prothèses ainsi réalisées afin de ne pas faire courir le moindre risque aux patients sur lesquels pouvaient être implantées ces prothèses. In the embodiment according to this document, the connection between the cap and the sleeve was obtained by welding or the like. However, despite all the precautions that could be taken during the manufacture of these prostheses, this type of connection did not always make it possible to compensate, for example, the differences in machining tolerances and, for security reasons, it was necessary to eliminate a relatively large number large number of prostheses thus produced in order not to run the slightest risk to the patients on whom these prostheses could be implanted.
Aussi, la présente invention a-t-elle pour but de réaliser une tige fémorale pour prothèse de hanche, dans laquelle, notamment dans le cas où elle comporte une tête hémisphérique en céramique ou analogue, la nature de la liaison entre cette tête hémisphérique et la patte fémorale permet de pallier les inconvénients mentionnés ci-dessus des tiges de prothèses similaires de l'art antérieur. The object of the present invention is therefore to produce a femoral stem for a hip prosthesis, in which, in particular in the case where it comprises a hemispherical ceramic head or the like, the nature of the connection between this hemispherical head and the femoral leg overcomes the drawbacks mentioned above of the stems of similar prostheses of the prior art.
Plus précisément, la présente invention a pour objet une tige fémorale pour prothèse de hanche, comprenant une patte de prothèse comportant deux extrémités respectivement distale et proximale, ladite patte de prothèse étant apte à être implantée dans le canal médullaire d'un fémur par son extrémité distale, son extrémité proximale demeurant en dehors dudit canal étant conformée en tronc de cône, un insert comportant, d'une part un logement en creux en forme de tronc de cône sensiblement complémentaire de l'extrémité proximale de la patte de prothèse de façon que ledit insert puisse être emmanché sur cette extrémité proximale par emboîtement conique mâle-femelle congruent, et d'autre part une surface extérieure de forme cylindrique, ladite surface extérieure cylindrique étant bordée, à une extrémité, par un anneau d'épaulement défini dans un plan sensiblement perpendiculaire à l'axe du logement en creux en tronc de cône, et une calotte hémisphérique comportant une cavité cylindrique sensiblement complémentaire de la surface extérieure cylindrique de l'insert, mais d'une section supérieure, la cavité débouchant sur un méplat réalisé sur la calotte hémisphérique, ce méplat étant apte à reposer sur l'anneau d'épaulement de l'insert, caractérisée par le fait qu'elle comporte en outre une butée réalisée sur l'extrémité proximale de la patte de prothèse pour limiter un enfoncement supplémentaire de cette extrémité proximale dans le logement en creux de l'insert par déformation élastique radiale de cet insert, après que l'emboîtement congruent ait été réalisé, et une gaine en un matériau élastiquement compressible et extansible interposée au contact au moins partiellement entre la paroi de la cavité de la calotte hémisphérique et la surface extérieure cylindrique de l'insert, les valeurs respectives de la section de la cavité de la calotte hémisphérique et de la section de la surface extérieure cylindrique de l'insert étant déterminées de façon que, lorsque l'extrémité proximale de la patte de prothèse est enfoncée dans le logement en creux de l'insert et que ledit insert vient au contact de ladite butée, la compression de ladite gaine n'atteint pas la valeur au-delà de laquelle la gaine dépasse sa limite de compressibilité élastique. More specifically, the present invention relates to a femoral stem for hip prosthesis, comprising a prosthetic leg having two ends respectively distal and proximal, said prosthetic leg being able to be implanted in the medullary canal of a femur by its end. distal, its proximal end remaining outside said channel being shaped as a truncated cone, an insert comprising, on the one hand a hollow housing in the form of a truncated cone substantially complementary to the proximal end of the prosthetic tab so that said insert can be fitted onto this proximal end by conical male-female conical fitting, and on the other hand an outer surface of cylindrical shape, said cylindrical outer surface being bordered, at one end, by a shoulder ring defined in a plane substantially perpendicular to the axis of the recess in a truncated cone shape, and a cal hemispherical cap comprising a cylindrical cavity substantially complementary to the cylindrical outer surface of the insert, but of an upper section, the cavity opening onto a flat formed on the hemispherical cap, this flat being able to rest on the shoulder ring of the insert, characterized in that it further comprises a stop formed on the proximal end of the prosthesis tab to limit an additional depression of this proximal end in the hollow housing of the insert by radial elastic deformation of this insert, after the congruent interlocking has been produced, and a sheath made of an elastically compressible and expandable material interposed at least partially in contact between the wall of the cavity of the hemispherical cap and the cylindrical outer surface of the insert, the respective values of the section of the cavity of the hemispherical cap and of the section of the cylindrical outer surface of the insert being determined so that, when the proximal end of the prosthesis tab is pressed into the hollow housing of the insert and said insert comes into contact with said stop, the compression of said sheath does not reach the value beyond which the sheath exceeds its elastic compressibility limit.
D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description suivante donnée en regard du dessin annexé à titre illustratif mais nullement limitatif, dans lequel la figure unique représente, dans une vue en coupe longitudinale et partiellement en écorché, un mode de réalisation d'une partie d'une tige fémorale pour prothèse de hanche selon l'invention. Other characteristics and advantages of the present invention will appear during the following description given with reference to the drawing annexed by way of illustration but in no way limiting, in which the single figure represents, in a view in longitudinal section and partially cut away, a mode for producing part of a femoral stem for hip prosthesis according to the invention.
La tige fémorale pour prothèse de hanche illustrée sur la figure unique comprend une patte de prothèse l comportant deux extrémités respectivement distale 2 et proximale 3. The femoral stem for hip prosthesis illustrated in the single figure comprises a prosthetic leg l having two ends respectively distal 2 and proximal 3.
Cette patte de prothèse est apte à être implantée dans le canal médullaire d'un fémur de façon connue par son extrémité distale 2, son extrémité proximale 3 demeurant en dehors du canal. En outre, cette extrémité proximale 3 est conformée en tronc de cône, comme visible sur la figure. This prosthetic leg is adapted to be implanted in the medullary canal of a femur in a known manner by its distal end 2, its proximal end 3 remaining outside the canal. In addition, this proximal end 3 is shaped as a truncated cone, as visible in the figure.
Elle comporte aussi un insert 4 comportant, d'une part un logement en creux 5 en forme de tronc de cône sensiblement complémentaire de l'extrémité proximale 3 de la patte de prothèse de façon que cet insert 4 puisse être emmanché sur cette extrémité proximale par emboîtement conique mâle-femelle congruent, et d'autre part une surface extérieure 6 de forme cylindrique, cette surface extérieure cylindrique 6 étant bordée, à une extrémité 7, par un anneau d'épaulement 8 défini dans un plan 9 sensiblement perpendiculaire à l'axe 10 du logement en creux 5 en tronc de cône, Elle comporte aussi une calotte hémisphérique 11 comportant une cavité cylindrique 12 sensiblement complémentaire de la surface extérieure cylindrique 6 de l'insert 4, mais d'une section supérieure, la cavité 12 débouchant sur un méplat 13 réalisé sur la calotte hémisphérique, ce méplat étant apte à reposer sur l'anneau d'épaulement 8 de l'insert 4. Cette tige fémorale comporte en outre, selon des caractéristiques essentielles de l'invention, une butée 20 réalisée sur l'extrémité proximale 3 de la patte de prothèse 1 pour limiter l'enfoncement supplémentaire de cette extrémité proximale dans le logement en creux de l'insert par déformation élastique radiale de cet insert, après que l'emboîtement congruent ait été réalisé, et une gaine 30 en un matériau élastiquement compressible et extansible interposée au contact au moins partiellement entre la paroi de la cavité 12 de la calotte hémisphérique 11 et la surface extérieure cylindrique 6 de l'insert. It also includes an insert 4 comprising, on the one hand a hollow housing 5 in the form of a truncated cone substantially complementary to the proximal end 3 of the prosthesis tab so that this insert 4 can be fitted onto this proximal end by Conical male-female fitting congruent, and on the other hand an outer surface 6 of cylindrical shape, this cylindrical outer surface 6 being bordered, at one end 7, by a shoulder ring 8 defined in a plane 9 substantially perpendicular to the axis 10 of the recessed recess 5 in a truncated cone, it also comprises a hemispherical cap 11 comprising a cylindrical cavity 12 substantially complementary to the cylindrical external surface 6 of the insert 4, but of an upper section, the cavity 12 opening onto a flat 13 made on the hemispherical cap, this flat being able to rest on the shoulder ring 8 of the insert 4. This femora rod the further comprises, according to essential characteristics of the invention, a stop 20 produced on the proximal end 3 of the prosthesis tab 1 to limit the further insertion of this proximal end into the hollow housing of the insert by radial elastic deformation of this insert, after the congruent nesting has been produced, and a sheath 30 of an elastically compressible and expandable material interposed at least partially between the wall of the cavity 12 of the hemispherical cap 11 and the external surface cylindrical 6 of the insert.
De plus, les valeurs respectives de la section de la cavité 12 de la calotte hémisphérique 11 et de la section de la surface extérieure cylindrique 6 de l'insert 4 sont déterminées de façon que, lorsque l'extrémité proximale 3 de la patte de prothèse 1 est enfoncée dans le logement en creux 5 de l'insert 4 et que l'insert vient au contact de la butée 20, la compression de la gaine 30 n'atteint pas la valeur au-delà de laquelle la gaine dépasse sa limite de compressibilité élastique. In addition, the respective values of the section of the cavity 12 of the hemispherical cap 11 and the section of the cylindrical outer surface 6 of the insert 4 are determined so that, when the proximal end 3 of the prosthetic tab 1 is pressed into the hollow housing 5 of the insert 4 and the insert comes into contact with the stop 20, the compression of the sheath 30 does not reach the value beyond which the sheath exceeds its limit of elastic compressibility.
Dans une réalisation préférentielle, la butée 20 est constituée, comme illustré sur la figure, par une couronne d'épaulement réalisée par usinage dans la même pièce que la patte fémorale 1 définie ci-dessus. In a preferred embodiment, the stop 20 is constituted, as illustrated in the figure, by a shoulder ring produced by machining in the same part as the femoral leg 1 defined above.
II est tout d'abord précisé que les formes tronconiques, respectivement de la partie proximale 3 de la patte fémorale et du logement en creux 5 de l'insert, sont déterminées pour qu'il y ait emboîtement mâle-femelle conique congruent avant que l'insert 4 vienne au contact de la butée 20 et que, lorsque l'insert 4 est emmanché sur la patte fémorale 1, il ne vient normalement pas au contact de la butée 20. Il prend, par rapport à cette butée, une position comme celle qui est illustrée sur la figure unique. It is firstly specified that the frustoconical shapes, respectively of the proximal part 3 of the femoral leg and of the hollow housing 5 of the insert, are determined so that there is a congruent conical male-female fitting before the insert 4 comes into contact with the stop 20 and when the insert 4 is fitted onto the femoral leg 1, it does not normally come into contact with the stop 20. It takes, in relation to this stop, a position as that which is illustrated in the single figure.
Si une surcharge de pression, par exemple accidentelle, s'applique sur la calotte hémisphérique 11, cette surcharge est transmise à l'insert 4 via le méplat 13 qui s'appuie sur l'anneau d'épaulement 8. L'insert a alors tendance à descendre le long de l'extrémité proximale 3 de la patte fémorale 1. De façon relative, cette extrémité proximale 3 va s'enfoncer dans le logement 5 de l'insert 4 qui subit en conséquence une déformation par dilatation radiale élastique. Cependant, du fait de la présence de la butée 20, cette dilatation de l'insert sera automatiquement limitée à un certain seuil puisque, dès qu'il est au contact de cette butée, l'insert 4 ne peut plus se dilater radialement. If a pressure overload, for example accidental, applies to the hemispherical cap 11, this overload is transmitted to the insert 4 via the flat 13 which rests on the shoulder ring 8. The insert then has tendency to descend along the proximal end 3 of the femoral leg 1. Relatively, this proximal end 3 will sink into the housing 5 of the insert 4 which consequently undergoes deformation by elastic radial expansion. However, due to the presence of the stop 20, this expansion of the insert will be automatically limited to a certain threshold since, as soon as it is in contact with this stop, the insert 4 can no longer expand radially.
Corrélativement, la gaine 30 va se comprimer sous l'effet de la dilatation radiale de l'insert, mais sans pour autant atteindre sa limite de compressibilité élastique. II n'y aura donc pas, suite à cette surcharge accidentelle, de transmission d'efforts de dilatation radiale sur la calotte hémisphérique 11, et tout risque de rupture de la calotte hémisphérique est donc presque totalement annihilé. Correlatively, the sheath 30 will compress under the effect of the radial expansion of the insert, but without reaching its elastic compressibility limit. There will therefore be, following this accidental overload, transmission of radial expansion forces on the hemispherical cap 11, and any risk of rupture of the hemispherical cap is therefore almost completely annihilated.
En outre, pour que la calotte hémisphérique 11 puisse rester constamment solidaire de l'insert de façon fiable, la gaine 30 est avantageusement réalisée en un matériau apte à créer une liaison adhésive entre la surface extérieure de forme cylindrique 6 de l'insert 4 et la paroi de la cavité 12 de la calotte hémisphérique, par exemple une colle à base de silicone ou analogue. In addition, so that the hemispherical cap 11 can remain permanently integral with the insert in a reliable manner, the sheath 30 is advantageously made of a material capable of creating an adhesive bond between the outer cylindrical surface 6 of the insert 4 and the wall of the cavity 12 of the hemispherical cap, for example a silicone-based adhesive or the like.
Pour améliorer l'adhérence entre la gaine 30 et au moins la surface extérieure de forme cylindrique 6 de l'insert 4, la surface extérieure cylindrique de l'insert comporte des parties en creux 22 constituées par au moins l'un des éléments suivants : filetage, stries, gorges, rainures, schématiquement illustrés sur la figure unique jointe à la présente description. To improve the adhesion between the sheath 30 and at least the cylindrical external surface 6 of the insert 4, the cylindrical external surface of the insert comprises recessed portions 22 constituted by at least one of the following elements: thread, grooves, grooves, grooves, schematically illustrated in the single figure attached to this description.
La gaine 30 est avantageusement constituée par une épaisseur de colle appliquée sur la surface cylindrique 6 de l'insert 4 avant que celui-ci ne soit introduit dans la cavité 12 de la calotte hémisphérique et, pour être certain d'obtenir une bonne adhérence, il est préférable d'appliquer une quantité de colle en excès. Cependant, ce trop plein de colle ne doit pas gêner la mise en place de la calotte sur l'insert, ni le contact du méplat 13 sur l'anneau d'épaulement 8 comme représenté sur la figure. The sheath 30 is advantageously constituted by a thickness of adhesive applied to the cylindrical surface 6 of the insert 4 before the latter is introduced into the cavity 12 of the hemispherical cap and, to be certain of obtaining good adhesion, it is best to apply an excess amount of glue. However, this excess of glue should not hinder the establishment of the cap on the insert, or the contact of the flat 13 on the shoulder ring 8 as shown in the figure.
Dans ce but, la tige fémorale comporte en outre au moins une cuvette 24 apte à recevoir un trop plein de colle. Cette cuvette, de préférence de forme annulaire, est réalisée dans l'anneau d'épaulement 8 de façon à être en communication fluidique avec l'espace 26 compris entre la paroi de la cavité 12 de la calotte hémisphérique 11 et la surface extérieure cylindrique 6 de l'insert 4, cette mise en communication étant obtenue par le fait que, comme illustré sur la figure, un bord de la cuvette s'ouvre sur l'espace 26 défini ci-dessus. For this purpose, the femoral stem further comprises at least one cup 24 capable of receiving an overflow of glue. This bowl, preferably of annular shape, is produced in the shoulder ring 8 so as to be in fluid communication with the space 26 between the wall of the cavity 12 of the hemispherical cap 11 and the cylindrical outer surface 6 of the insert 4, this communication being obtained by the fact that, as illustrated in the figure, an edge of the bowl opens onto the space 26 defined above.
De façon connue, une telle tige de prothèse est destinée à être montée en coopération avec un cotyle ou analogue placé dans la cavité cotyloïdienne de la hanche, et cette tige doit pouvoir subir, par rapport au bassin, des rotations sensiblement identiques à celles d'une jambe valide. In known manner, such a prosthesis rod is intended to be mounted in cooperation with an acetabulum or the like placed in the acetabular cavity of the hip, and this rod must be able to undergo, relative to the pelvis, rotations substantially identical to those of a valid leg.
Il est donc nécessaire que la rotation de la tige fémorale par rapport au cotyle ne soit en aucune façon limitée à un angle de faible valeur. It is therefore necessary that the rotation of the femoral stem relative to the acetabulum is in no way limited to an angle of small value.
Aussi, selon une autre caractéristique de la présente invention, lorsque le méplat 13 de la calotte hémisphérique 11 repose sur l'anneau d'épaulement 8 de l'insert 4 comme illustré sur la figure jointe, l'anneau d'épaulement 8 est inscrit dans la sphère 28 définie par la calotte hémisphérique 11. Cette caractéristique permet à la tige fémorale d'effectuer, par rapport au cotyle, des rotations dans un angle solide d'une valeur (3 relativement grande. En effet, si les valeurs des angles solides d'ouverture du cotyle et de la partie basse 14 de l'insert sont respectivement égales à y et à a, la valeur P est égale à y - a. Dans le cas où l'anneau d'épaulement 8 est inscrit dans la sphère 28 définie par la calotte hémisphérique 11,a est plus faible que si l'anneau d'épaulement dépassait hors de cette sphère 28, et la valeur 5 est donc relativement grande. Also, according to another characteristic of the present invention, when the flat 13 of the hemispherical cap 11 rests on the shoulder ring 8 of the insert 4 as illustrated in the attached figure, the shoulder ring 8 is inscribed in the sphere 28 defined by the hemispherical cap 11. This characteristic allows the femoral stem to perform, relative to the acetabulum, rotations in a solid angle of a value (3 relatively large. Indeed, if the values of the angles solids of opening of the acetabulum and of the lower part 14 of the insert are respectively equal to y and to a, the value P is equal to y - a. In the case where the shoulder ring 8 is inscribed in the sphere 28 defined by the hemispherical cap 11, a is smaller than if the shoulder ring protruded outside of this sphere 28, and the value 5 is therefore relatively large.
Sur la figure unique jointe à la présente description, la valeur y de l'angle d'ouverture du cotyle est évoquée schématiquement et, à titre d'exemple, est égale à 7E. In the single figure appended to this description, the value y of the opening angle of the acetabulum is shown diagrammatically and, by way of example, is equal to 7E.
Bien entendu, de préférence, les troncs de cônes formant respectivement l'extrémité proximale 3 de la patte de prothèse 1 et le logement en creux 5 de l'insert 4 sont des surfaces de révolution. Of course, preferably, the trunks of cones respectively forming the proximal end 3 of the prosthesis tab 1 and the hollow housing 5 of the insert 4 are surfaces of revolution.
En outre, pour obtenir, lors de l'emboîtement de l'extrémité proximale 3 dans le logement en creux 5, une très bonne congruence entre la paroi du logement en creux et la surface de l'extrémité proximale, il est très avantageux que l'angle au sommet du tronc de cône formant l'extrémité proximale 3 de la patte de prothèse 1 soit légèrement supérieur à l'angle au sommet du tronc de cône formant le logement en creux 5 de l'insert 4, par exemple de quelques dizaines de secondes d'angle pour une prothèse prévue pour une personne adulte. In addition, to obtain, when the proximal end 3 fits into the hollow housing 5, a very good congruence between the wall of the hollow housing and the surface of the proximal end, it is very advantageous that the angle at the top of the truncated cone forming the proximal end 3 of the prosthetic leg 1 is slightly greater than the angle at the top of the truncated cone forming the hollow housing 5 of the insert 4, for example a few tens of seconds of angle for a prosthesis intended for an adult person.
Enfin, il est à noter que la structure de tige fémorale selon l'invention telle qu'illustrée sur la figure unique jointe à la présente description, est particulièrement avantageuse dans le cas où la calotte hémisphérique 11 est réalisée dans au moins l'un des matériaux suivants céramique, matériau monocristallin, matériau polycristallin, l'insert 4 étant réalisé dans un matériau métallique, par exemple un alliage de titane ou analogue. Finally, it should be noted that the femoral stem structure according to the invention as illustrated in the single figure appended to this description, is particularly advantageous in the case where the hemispherical cap 11 is produced in at least one of the following materials ceramic, monocrystalline material, polycrystalline material, the insert 4 being made of a metallic material, for example a titanium alloy or the like.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9913652A FR2800269B1 (en) | 1999-11-02 | 1999-11-02 | FEMALE ROD FOR HIP PROSTHESIS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9913652A FR2800269B1 (en) | 1999-11-02 | 1999-11-02 | FEMALE ROD FOR HIP PROSTHESIS |
Publications (2)
Publication Number | Publication Date |
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FR2800269A1 true FR2800269A1 (en) | 2001-05-04 |
FR2800269B1 FR2800269B1 (en) | 2003-08-08 |
Family
ID=9551589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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FR9913652A Expired - Fee Related FR2800269B1 (en) | 1999-11-02 | 1999-11-02 | FEMALE ROD FOR HIP PROSTHESIS |
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FR (1) | FR2800269B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2832309A1 (en) * | 2001-11-21 | 2003-05-23 | Jean Claude Bouvet | Femoral rod for hip prosthesis has foot with femoral rod receiving insert with shoulder to engage hemispherical cap |
FR2893247A1 (en) * | 2005-11-17 | 2007-05-18 | Bioprofile Sa | IMPLANT, PARTICULARLY PARTIAL IMPLANT OF THE HEAD OF CUBITUS |
US9763791B2 (en) | 2013-02-06 | 2017-09-19 | Howmedica Osteonics Corp. | Femoral prosthesis head |
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US4650489A (en) * | 1986-01-30 | 1987-03-17 | Massachusetts Institute Of Technology | Prosthetic device for implantation in bone |
EP0406040A2 (en) * | 1989-06-28 | 1991-01-02 | La Biomecanique Integree | Prosthesis ball-joint |
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US5362311A (en) * | 1990-01-05 | 1994-11-08 | Kyocera Corporation | Artificial hip joint |
US5389107A (en) * | 1992-05-11 | 1995-02-14 | Antoine A. Nassar | Shock absorbent prosthetic hip joint |
US5413610A (en) * | 1986-12-25 | 1995-05-09 | Kyocera Corporation | Artificial hip joint |
FR2726473A1 (en) * | 1994-11-04 | 1996-05-10 | Coent Fernand Le | Intra-osseous implant e.g. for hip, knee or tooth prosthesis |
US5735905A (en) * | 1995-04-27 | 1998-04-07 | Southwest Research Institute | Shock absorbing element for a load bearing prosthesis |
EP0864303A2 (en) * | 1997-03-10 | 1998-09-16 | Johnson & Johnson Professional, Inc. | Coated load bearing surface for a prosthetic joint |
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FR2105998A5 (en) * | 1970-08-26 | 1972-04-28 | Gulf Oil Corp | |
FR2580170A1 (en) | 1985-04-12 | 1986-10-17 | Meta Ceram | FEMALE HEAD FOR HIP PROSTHESIS |
US4650489A (en) * | 1986-01-30 | 1987-03-17 | Massachusetts Institute Of Technology | Prosthetic device for implantation in bone |
US5413610A (en) * | 1986-12-25 | 1995-05-09 | Kyocera Corporation | Artificial hip joint |
EP0406040A2 (en) * | 1989-06-28 | 1991-01-02 | La Biomecanique Integree | Prosthesis ball-joint |
US5362311A (en) * | 1990-01-05 | 1994-11-08 | Kyocera Corporation | Artificial hip joint |
US5389107A (en) * | 1992-05-11 | 1995-02-14 | Antoine A. Nassar | Shock absorbent prosthetic hip joint |
EP0597553A1 (en) * | 1992-11-12 | 1994-05-18 | Bristol-Myers Squibb Company | Method of attaching a modular femoral head to the neck of a hip stem prosthesis for the preventation of corrosion therebetween |
FR2726473A1 (en) * | 1994-11-04 | 1996-05-10 | Coent Fernand Le | Intra-osseous implant e.g. for hip, knee or tooth prosthesis |
US5735905A (en) * | 1995-04-27 | 1998-04-07 | Southwest Research Institute | Shock absorbing element for a load bearing prosthesis |
EP0864303A2 (en) * | 1997-03-10 | 1998-09-16 | Johnson & Johnson Professional, Inc. | Coated load bearing surface for a prosthetic joint |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2832309A1 (en) * | 2001-11-21 | 2003-05-23 | Jean Claude Bouvet | Femoral rod for hip prosthesis has foot with femoral rod receiving insert with shoulder to engage hemispherical cap |
FR2893247A1 (en) * | 2005-11-17 | 2007-05-18 | Bioprofile Sa | IMPLANT, PARTICULARLY PARTIAL IMPLANT OF THE HEAD OF CUBITUS |
WO2007057741A2 (en) * | 2005-11-17 | 2007-05-24 | Bioprofile | Implant, especially partial implant of the head of the ulna |
WO2007057741A3 (en) * | 2005-11-17 | 2007-10-04 | Bioprofile | Implant, especially partial implant of the head of the ulna |
US9763791B2 (en) | 2013-02-06 | 2017-09-19 | Howmedica Osteonics Corp. | Femoral prosthesis head |
Also Published As
Publication number | Publication date |
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FR2800269B1 (en) | 2003-08-08 |
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