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FR2721200A1 - Hip prosthesis with variable articulation - Google Patents

Hip prosthesis with variable articulation Download PDF

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Publication number
FR2721200A1
FR2721200A1 FR9407556A FR9407556A FR2721200A1 FR 2721200 A1 FR2721200 A1 FR 2721200A1 FR 9407556 A FR9407556 A FR 9407556A FR 9407556 A FR9407556 A FR 9407556A FR 2721200 A1 FR2721200 A1 FR 2721200A1
Authority
FR
France
Prior art keywords
removable
neck
rod
removable neck
hip prosthesis
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
Application number
FR9407556A
Other languages
French (fr)
Other versions
FR2721200B1 (en
Inventor
Jacques Rebouillat
Francois Lecuire
Michel Chattot
Philippe Caudal
Yannick Cherbakow
Jean Marie Leleu
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.)
CREMASCOLI FRANCE
Original Assignee
CREMASCOLI FRANCE
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 CREMASCOLI FRANCE filed Critical CREMASCOLI FRANCE
Priority to FR9407556A priority Critical patent/FR2721200B1/en
Publication of FR2721200A1 publication Critical patent/FR2721200A1/en
Application granted granted Critical
Publication of FR2721200B1 publication Critical patent/FR2721200B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A61F2/32—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
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—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
    • 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
    • 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
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • 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
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A61F2002/30334—Cone of elliptical or oval 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
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • A61F2002/30339—Double cones, i.e. connecting element having two conical connections, one at each of its opposite ends
    • 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
    • A61F2002/30354—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
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • 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
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30795—Blind bores, e.g. of circular cross-section
    • A61F2002/308—Blind bores, e.g. of circular cross-section oblong
    • 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
    • A61F2002/3611—Heads or epiphyseal parts of femur
    • 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
    • A61F2002/3625—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
    • 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
    • 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
    • A61F2002/3652—Connections of necks to 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
    • 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

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

The prosthesis consists of a shank (2) with a recess in its upper end to receive a movable neck (8) which connects with a spherical head (13). The recess in the shank's upper end is elliptical in section, and has a blind hole in its base to receive a tip on the end of the neck. The neck has a truncated conical base of elliptical cross-section to fit into the cavity. Its upper end can be offset in any direction or at any angle.

Description

L'invention a pour objet une prothèse de hanche. The invention relates to a hip prosthesis.

I1 existe déjà des prothèses de hanche, de type modulaire, qui sont prévues pour être adaptées en fonction des caractéristiques géométriques particulières de chaque articulation à opérer. I1 already exists hip prostheses, modular type, which are provided to be adapted according to the particular geometric characteristics of each joint to operate.

FR-A-2. 626.168 : l'invention concerne une prothèse de hanche, de type modulaire, prévue pour être adaptée en fonction des caractéristiques géométriques particulières de chaque articulation à opérer. FR-A-2. 626.168: the invention relates to a hip prosthesis, of the modular type, designed to be adapted as a function of the particular geometric characteristics of each joint to be operated.

La prothèse comporte une tige de longueur appropriée, dont la partie supérieure comprend un logement pour un collet conçu pour recevoir une tête sphérique, et un cotyle coopérant avec la tige et pouvant être orienté ou ancré dans l'acétabule. The prosthesis comprises a rod of appropriate length, the upper part of which comprises a housing for a collar designed to receive a spherical head, and a cup cooperating with the rod and which can be oriented or anchored in the acetabulum.

Auparavant, les prothèses de hanche ne comportaient pas de col amovible. Il y avait lieu de préparer le site par des opérations d'élaboration et de fabrication. Previously, hip prostheses did not have a removable collar. The site had to be prepared by development and manufacturing operations.

La prothèse permet la réalisation de toutes sortes d'articulations différentes quelles que soient les dimensions et sans qu'il soit nécessaire d'y apporter des modifications particulières ou complexes. The prosthesis allows the realization of all kinds of different joints whatever the dimensions and without the need to make any particular or complex modifications.

-FR-A-2.636.837 : l'invention décrit une prothèse de hanche qui comporte un corps allongé de section sensiblement elliptique, allant en se rétrécissant vers son extrémité inférieure et définissant dans sa partie supérieure un cône conçu pour recevoir une petite tête d'accouplement, ledit corps allongé comportant une paroi intermédiaire de profil constant quelles que soient les dimensions de la prothèse et une paroi latérale dont le profil varie en fonction desdites dimensions. -FR-A-2.636.837: the invention describes a hip prosthesis which comprises an elongated body of substantially elliptical section, tapering towards its lower end and defining in its upper part a cone designed to receive a small head coupling, said elongated body comprising an intermediate wall of constant profile whatever the dimensions of the prosthesis and a side wall whose profile varies as a function of said dimensions.

La partie supérieure du corps allongé comporte des rainures. The upper part of the elongated body has grooves.

Les rainures sont ménagées sur tout le pourtour du corps allongé, et s'étendent sur un tiers de sa longueur totale. The grooves are formed around the entire periphery of the elongated body, and extend over a third of its total length.

Les têtes d'accouplement comportent un logement de profondeur variable selon la longueur du col du cône du corps allongé. The coupling heads have a housing of variable depth according to the length of the cone neck of the elongated body.

L'angle entre l'axe longitudinal du corps allongé et l'axe longitudinal du cône augmente aves les dimensions dudit corps allongé. The angle between the longitudinal axis of the elongated body and the longitudinal axis of the cone increases with the dimensions of said elongated body.

L'angle entre l'axe longitudinal du corps et l'axe longitudinal du cône est compris entre 1329 et 142Q.  The angle between the longitudinal axis of the body and the longitudinal axis of the cone is between 1329 and 142Q.

- Demande de brevet no-92 00427 déposée en FRANCE le 13.01.92 : l'invention décrit une prothèse de hanche du type comportant une coupole métallique, qui est susceptible d'être fixée par des vis dans le bassin d'un patient, laquelle coupole reçoit un noyau en matière plastique dont une partie au moins de la face externe épouse une partie au moins de la face interne de ladite coupole, caractérisée par le fait que ledit noyau comporte une cavité, qui peut recevoir la tête d'une tige qui peut être fixée au fémur dudit patient, ladite tige est pourvue d'un cône fixe, dit cône "morse" qui reçoit les têtes prothétiques qui entrent dans le noyau, l'angle cervico-diaphysaire augmente selon la taille de la tige. - Patent application no-92 00427 filed in FRANCE on 01/13/92: the invention describes a hip prosthesis of the type comprising a metal dome, which is capable of being fixed by screws in the pelvis of a patient, which dome receives a plastic core, at least part of the external face of which matches at least part of the internal face of said dome, characterized in that said core comprises a cavity, which can receive the head of a rod which can be fixed to the femur of said patient, said rod is provided with a fixed cone, said "walrus" cone which receives the prosthetic heads which enter the nucleus, the cervico-diaphyseal angle increases according to the size of the rod.

La prothèse de hanche selon l'invention est du type comportant une tige de longueur appropriée, avec dans sa partie supérieure un logement pour recevoir un col amovible prévu pour être fixé à une tête sphérique, et un cotyle coopérant avec ladite tige et conçu pour être cimenté ou ancré dans l'acétabule. The hip prosthesis according to the invention is of the type comprising a rod of suitable length, with in its upper part a housing for receiving a removable neck intended to be fixed to a spherical head, and a cup cooperating with said rod and designed to be cemented or anchored in the acetabulum.

La partie supérieure de la tige comporte une cavité sensiblement elliptique, un trou borgne forme un logement ménagé dans la partie centrale de ladite cavité, l'une des extrémités du col amovible est ancrée dans ledit logement et l'autre extrémité dudit col amovible est conçue pour être reliée à une tête sphérique pour coopérer avec un cotyle pouvant être fixé dans l'acétabule du bassin. The upper part of the rod has a substantially elliptical cavity, a blind hole forms a housing formed in the central part of said cavity, one end of the removable neck is anchored in said housing and the other end of said removable neck is designed to be connected to a spherical head to cooperate with a cup which can be fixed in the acetabulum of the pelvis.

Le col amovible est composé d'une première partie composée d'un axe qui entre dans le trou borgne de la partie supérieure de la tige, et d'une partie massive sensiblement elliptique qui entre dans la cavité elliptique de la tige. The removable neck is composed of a first part composed of an axis which enters the blind hole of the upper part of the rod, and a solid, substantially elliptical part which enters the elliptical cavity of the rod.

La seconde partie du col amovible est conçue pour être reliée à la tête sphérique pour coopérer avec un cotyle pouvant être fixé dans l'acétabule du bassin. The second part of the removable neck is designed to be connected to the spherical head to cooperate with a cup which can be fixed in the acetabulum of the pelvis.

Les deux parties du col amovible sont dans l'axe longitudinal l'une de l'autre de manière à ce que l'ensemble soit droit. The two parts of the removable neck are in the longitudinal axis of each other so that the assembly is straight.

Selon un autre mode de réalisation, les deux parties sont désaxées latéralement l'une par rapport à l'autre. According to another embodiment, the two parts are offset laterally with respect to each other.

Selon un autre mode de réalisation, le plan principal de chaque partie du col amovible forme un angle avec le plan principal de l'autre partie en rétroversion ou en antéversion de 150 et 80. According to another embodiment, the main plane of each part of the removable neck forms an angle with the main plane of the other part in retroversion or anteversion of 150 and 80.

Selon un autre mode de réalisation, les deux parties du col amovible bien que coaxiales sont tournées en rotation angulaire de 80 l'une par rapport à l'autre, soit en position varus (tourné vers l'intérieur) soit en position valgus (tourné vers 1 'extérieur).  According to another embodiment, the two parts of the removable neck although coaxial are turned in angular rotation by 80 relative to each other, either in the varus position (turned inward) or in the valgus position (turned outward).

Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent un mode de réalisation préféré selon l'invention. Ils permettront de comprendre aisément l'invention. The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.

La figure 1 est une vue schématique d'une prothèse de hanche vue en perspective de côté. Figure 1 is a schematic view of a hip prosthesis seen in perspective from the side.

La figure 2 est une vue schématique de la prothèse selon la figure 1, mais vue de face. Figure 2 is a schematic view of the prosthesis according to Figure 1, but front view.

La figure 3 est une vue de la tige avec un col amovible
DROIT.Figure 3 is a view of the rod with a removable neck
LAW.

La figure 4 est une vue de la tige dans un autre mode de réalisation avec un col amovible LATERALISE. Figure 4 is a view of the rod in another embodiment with a removable LATERALIZED neck.

Les figures 5, 6, 7, 8 sont des vues des différents cols amovibles selon l'invention. Figures 5, 6, 7, 8 are views of the various removable necks according to the invention.

La figure 5 est une vue d'un col amovible droit. Figure 5 is a view of a removable right collar.

La figure 6 est une vue d'un col amovible dit latéralisé ou médialisé. Figure 6 is a view of a removable collar said lateralized or medialized.

La figure 7 est une vue d'un col amovible tourné vers l'extérieur ou vers l'intérieur du type antéversion ou du type rétroversion. Figure 7 is a view of a removable collar facing outward or inward of the anteversion type or the retroversion type.

La figure 8 est une vue d'un col amovible du type varus ou du type valgus. FIG. 8 is a view of a removable collar of the varus type or of the valgus type.

La prothèse de hanche 1 selon l'invention est du type comportant une tige 2 de longueur appropriée, avec dans sa partie supérieure un logement 3 pour recevoir un col amovible 8 prévu pour être fixé à une tête sphérique 13 représentée dans les figures 3 et 4, et un cotyle non représenté coopérant avec ladite tige 2 et conçu pour être cimenté ou ancré dans l'acétabule. The hip prosthesis 1 according to the invention is of the type comprising a rod 2 of suitable length, with in its upper part a housing 3 for receiving a removable neck 8 intended to be fixed to a spherical head 13 shown in Figures 3 and 4 , and a cup not shown cooperating with said rod 2 and designed to be cemented or anchored in the acetabulum.

La partie supérieure 5 de la tige 2 comporte une cavité sensiblement elliptique 3 faisant office de logement, un ttou borgne 6 forme un logement ménagé dans la partie centrale de ladite cavité 3, l'une des extrémités 7 du col amovible 8 est ancrée dans ledit logement 3 et l'autre extrémité 9 dudit col amovible 8 est conçue pour être reliée à une tête sphérique non représentée pour coopérer avec un cotyle pouvant être fixé dans l'acétabule du bassin. The upper part 5 of the rod 2 comprises a substantially elliptical cavity 3 serving as a housing, a blind ttou 6 forms a housing formed in the central part of said cavity 3, one of the ends 7 of the removable neck 8 is anchored in said housing 3 and the other end 9 of said removable neck 8 is designed to be connected to a spherical head not shown to cooperate with a socket which can be fixed in the acetabulum of the pelvis.

Le col amovible 8 est composé d'une première partie 10 composée d'un axe 7 qui entre dans le trou borgne 6 de la partie supérieure 5 de la tige 2, et d'une partie massive 12 sensiblement elliptique qui entre dans la cavité elliptique 3 de la tige 2. The removable neck 8 is composed of a first part 10 composed of an axis 7 which enters the blind hole 6 of the upper part 5 of the rod 2, and a solid part 12 substantially elliptical which enters the elliptical cavity 3 of rod 2.

La seconde partie 11 du col amovible 8 est conçue pour être reliée à la tête sphérique 13 pour coopérer avec un cotyle pouvant être fixé dans l'acétabule du bassin. The second part 11 of the removable neck 8 is designed to be connected to the spherical head 13 to cooperate with a socket which can be fixed in the acetabulum of the pelvis.

Les deux parties 10, 11 du col amovible 8 sont dans l'axe longitudinal l'une de l'autre de manière à ce que l'ensemble soit droit, voir le mode de réalisation représenté à la figure 5. The two parts 10, 11 of the removable neck 8 are in the longitudinal axis of each other so that the assembly is straight, see the embodiment shown in FIG. 5.

Selon un autre mode de réalisation représenté à la figure 6, les deux parties 10,11 sont désaxées latéralement l'une 10 par rapport à l'autre 11. According to another embodiment shown in FIG. 6, the two parts 10, 11 are offset laterally one with respect to the other 11.

Selon un autre mode de réalisation représenté à la figure 7, le plan principal de chaque partie 10, 11 du col amovible 8 forme un angle avec le plan principal de l'autre partie en rétroversion ou en antéversion de 150 et 80. According to another embodiment shown in FIG. 7, the main plane of each part 10, 11 of the removable neck 8 forms an angle with the main plane of the other part in retroversion or in anteversion of 150 and 80.

Selon un autre mode de réalisation représenté à la figure 8, les deux parties 10,11 du col amovible 8 bien que coaxiales sont tournées en rotation angulaire l'une par rapport à l'autre, soit en position varus soit en position valgus
REFERENCES 1. Prothèse de hanche 2. Tige 3. Logement ou cavité elliptique 5. Partie supérieure de la tige 6. Trou borgne 7. Extrémité du col amovible 8. Col amovible 9. Autre extrémité du col amovible 10. Première partie du col 11. Deuxième partie du col 12. Partie massive du cône 13. Tête sphérique According to another embodiment shown in Figure 8, the two parts 10,11 of the removable neck 8 although coaxial are rotated in angular rotation relative to each other, either in the varus position or in the valgus position
REFERENCES 1. Hip prosthesis 2. Rod 3. Elliptical housing or cavity 5. Upper part of the rod 6. Blind hole 7. End of the removable neck 8. Removable neck 9. Other end of the removable neck 10. First part of the neck 11 Second part of the neck 12. Massive part of the cone 13. Spherical head

Claims (5)

REVENDICATIONS 1. Prothèse de hanche (1) du type comportant une tige (2) de longueur appropriée, avec dans sa partie supérieure un logement (3) pour recevoir un col amovible (8) prévu pour être fixé à une tête sphérique 13 et un cotyle coopérant avec ladite tige (2) et conçu pour être cimenté ou ancré dans l'acétabule, la partie supérieure (5) de la tige (2) comporte une cavité sensiblement elliptique (3) faisant office de logement, un trou borgne (6) forme un logement ménagé dans la partie centrale de ladite cavité (3), l'une des extrémités (7) du col amovible (8) est ancrée dans ledit logement (3) et l'autre extrémité (9) dudit col amovible (8) est conçue pour être reliée à une tête sphérique 13 caractérisée par le fait 1. Hip prosthesis (1) of the type comprising a rod (2) of suitable length, with in its upper part a housing (3) for receiving a removable collar (8) intended to be fixed to a spherical head 13 and a cup cooperating with said rod (2) and designed to be cemented or anchored in the acetabulum, the upper part (5) of the rod (2) comprises a substantially elliptical cavity (3) serving as a housing, a blind hole (6) forms a housing formed in the central part of said cavity (3), one of the ends (7) of the removable neck (8) is anchored in said housing (3) and the other end (9) of said removable neck (8 ) is designed to be connected to a spherical head 13 characterized by the fact que le col amovible (8) est composé d'une première partie (10) composée d'un axe (7) qui entre dans le trou borgne (6) de la partie supérieure (5) de la tige (2), et d'une partie massive et cônique (12) sensiblement elliptique qui entre dans la cavité elliptique (3) ; la seconde partie (11) du col amovible (8) est conçue pour être reliée à la tête sphérique (13). that the removable neck (8) is composed of a first part (10) composed of an axis (7) which enters the blind hole (6) of the upper part (5) of the rod (2), and d 'a massive and conical part (12) substantially elliptical which enters the elliptical cavity (3); the second part (11) of the removable neck (8) is designed to be connected to the spherical head (13). 2. Prothèse de hanche selon la revendication 1 caractérisée par le fait 2. hip prosthesis according to claim 1 characterized in that que les deux parties (10, 11) du col amovible (8) sont dans l'axe longitudinal par rapport à la partie massive (12) de manière à ce que l'ensemble soit droit. that the two parts (10, 11) of the removable neck (8) are in the longitudinal axis with respect to the solid part (12) so that the assembly is straight. 3. Prothèse de hanche selon la revendication 1 caractérisée par le fait 3. Hip prosthesis according to claim 1 characterized in that que les deux parties (10,11) du col amovible (8) sont désaxées latéralement par rapport à la partie massive (12). that the two parts (10,11) of the removable neck (8) are offset laterally with respect to the solid part (12). 4. Prothèse de hanche selon la revendication 1 caractérisée par le fait 4. Hip prosthesis according to claim 1 characterized in that que le plan principal de chaque partie (10, 11) du col amovible (8) forme un angle par rapport à la partie massive (12) en rétroversion ou en antéversion. that the main plane of each part (10, 11) of the removable neck (8) forms an angle with respect to the solid part (12) in retroversion or in anteversion. 5. Prothèse de hanche selon la revendication 1 caractérisée par le fait 5. Hip prosthesis according to claim 1 characterized in that que les deux parties (10,11) du col amovible (8) sont tournées en rotation angulaire de 80 par rapport à la partie massive (12), soit en position varus, soit en position valgus.  that the two parts (10,11) of the removable neck (8) are rotated in angular rotation by 80 relative to the solid part (12), either in the varus position, or in the valgus position.
FR9407556A 1994-06-17 1994-06-17 Hip prosthesis of the type comprising a rod with housing for removable neck. Expired - Lifetime FR2721200B1 (en)

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FR9407556A FR2721200B1 (en) 1994-06-17 1994-06-17 Hip prosthesis of the type comprising a rod with housing for removable neck.

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WO2005082290A3 (en) * 2004-02-19 2005-12-22 Mathys Ag Femur component of a hip joint endoprosthesis comprising a non-circular or eccentric abutment region
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US10610363B2 (en) 2004-06-15 2020-04-07 Tornier Sas Glenoidal component, set of such components and shoulder prosthesis incorporating such a glenoidal component
US8052758B1 (en) 2005-03-09 2011-11-08 Biomet Manufacturing Corp. Method and apparatus for trialing a modular humeral head
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