FR2799115A1 - Modular shank for hip prosthesis comprises medullary pin with cylindrical surface for thrust member, stops and support - Google Patents

Modular shank for hip prosthesis comprises medullary pin with cylindrical surface for thrust member, stops and support Download PDF

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Publication number
FR2799115A1
FR2799115A1 FR9912271A FR9912271A FR2799115A1 FR 2799115 A1 FR2799115 A1 FR 2799115A1 FR 9912271 A FR9912271 A FR 9912271A FR 9912271 A FR9912271 A FR 9912271A FR 2799115 A1 FR2799115 A1 FR 2799115A1
Authority
FR
France
Prior art keywords
nail
revolution
support piece
support
cylindrical portion
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
FR9912271A
Other languages
French (fr)
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FR2799115B1 (en
Inventor
Jean Claude Bouvet
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Individual
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Individual
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Publication date
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Priority to FR9912271A priority Critical patent/FR2799115B1/en
Publication of FR2799115A1 publication Critical patent/FR2799115A1/en
Application granted granted Critical
Publication of FR2799115B1 publication Critical patent/FR2799115B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary pins, nails or other devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8625—Shanks, i.e. parts contacting bone tissue
    • A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A61B17/8645—Headless screws, e.g. ligament interference screws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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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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    • A61F2/30721—Accessories
    • A61F2/30749—Fixation appliances for connecting prostheses to 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
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/367—Proximal or metaphyseal parts of shafts
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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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    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/3676—Distal or diaphyseal parts of shafts
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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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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30224—Three-dimensional shapes cylindrical
    • 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
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    • 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
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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
    • A61F2002/30339—Double cones, i.e. connecting element having two conical connections, one at each of its opposite ends
    • 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
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    • 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
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    • A61F2002/30433—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels, rivets or washers e.g. connecting screws
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
    • A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30594—Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
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Abstract

The modular shank consists of a a central medullary pin (1) with a cylindrical portion (3) at its proximal end (2), a thrust member (4) with a cylindrical bore (5) to fit the cylindrical portion, lower (6) and upper (9) stops for the thrust member and a support (7) to carry the male component of the prosthesis' spherical joint. The lower stop is in the form of a conical surface (11) on a crown (12) forming part of the medullary pin, while the upper stop is a conical surface (22) on the support.

Description

La présente invention concerne les tiges modulaires pour prothèses de hanche, qui sont aptes à porter la partie mâle de la rotule sphérique de ces prothèses, et notamment celles qui trouvent des applications particulièrement avantageuses, mais non exclusivement, comme tiges de prothèses de reprise, de révision, de reconstruction, etc. The present invention relates to modular rods for hip prostheses, which are capable of carrying the male part of the spherical ball joint of these prostheses, and in particular those which find particularly advantageous applications, but not exclusively, as rods of recovery prostheses, revision, reconstruction, etc.

Il est déjà connu un certain nombre de réalisations de tiges modulaires pour prothèses de hanche pour soutenir la partie mâle des rotules sphériques de ces prothèses, c'est-à-dire de tiges qui sont destinées à être disposées par enfichage dans le canal médullaire du fémur. Les réalisations actuelles des tiges modulaires pour prothèses de hanche présentent des inconvénients, notamment sur le plan de leur solidité. En effet, elles sont généralement constituées d'une queue de prothèse, d'une tête de tige et de moyens pour fixer la tête de tige sur le sommet de la queue de prothèse. Or, malgré tout le soin possible apporté à la réalisation de ces moyens de fixation, cette structure peut présenter un point de faiblesse au niveau de la liaison entre la tête de tige et la queue de prothèse. It is already known a number of embodiments of modular rods for hip prostheses to support the male part of the spherical ball joints of these prostheses, that is to say rods which are intended to be arranged by plugging into the medullary canal of the femur. The current embodiments of modular rods for hip prostheses have drawbacks, particularly in terms of their solidity. Indeed, they generally consist of a prosthesis tail, a stem head and means for fixing the stem head on the top of the prosthesis tail. However, despite all the possible care taken in the production of these fixing means, this structure may have a point of weakness at the connection between the stem head and the prosthesis tail.

Aussi, la présente invention a-t-elle pour but de réaliser upe tige modulaire pour prothèse de hanche qui tente de pallier les inconvénients des tiges modulaires de l'art antérieur, tout en présentant une structure qui permet au praticien de l'implanter facilement dans le canal médullaire du fémur. Also, the present invention aims to achieve upe modular rod for hip prosthesis which attempts to overcome the drawbacks of modular rods of the prior art, while having a structure which allows the practitioner to implant it easily in the medullary canal of the femur.

Plus précisément, la présente invention a pour objet une tige modulaire pour prothèse de hanche, apte à porter la partie mâle de la rotule sphérique de ladite prothèse de hanche, caractérisée par le fait qu'elle comporte un clou centromédullaire, ledit clou comportant, à sa partie proximale, une portion cylindrique de révolution, une pièce d'appui comportant une percée traversante cylindrique de révolution complémentaire de ladite portion cylindrique de révolution du clou, des premiers moyens d'appui en butée de référence pour définir la position de ladite pièce d'appui par rapport audit clou quand ladite pièce d'appui est enfichée sur ladite portion cylindrique de révolution du clou, une pièce de support apte à porter la partie mâle de la rotule sphérique, ladite pièce de support comportant une percée traversante cylindrique de révolution complémentaire de ladite portion cylindrique de révolution du clou, et des seconds moyens d'appui en butée de référence pour définir la position ladite pièce de support par rapport à ladite pièce d'appui quand ladite pièce de support est enfichée sur ladite portion cylindrique de révolution du clou après que ladite pièce d'appui ait été enfichée cette même portion cylindrique du clou. More specifically, the subject of the present invention is a modular rod for hip prosthesis, capable of carrying the male part of the spherical ball joint of said hip prosthesis, characterized in that it comprises a centromedullary nail, said nail comprising, at its proximal part, a cylindrical portion of revolution, a support piece comprising a cylindrical through-hole of revolution complementary to said cylindrical portion of revolution of the nail, first support means in reference stop for defining the position of said piece d support relative to said nail when said support piece is inserted on said cylindrical portion of revolution of the nail, a support piece capable of carrying the male part of the spherical ball joint, said support piece comprising a cylindrical through-hole of complementary revolution of said cylindrical portion of revolution of the nail, and second support means i as a reference stop to define the position of said support piece with respect to said support piece when said support piece is inserted on said cylindrical portion of revolution of the nail after said support piece has been inserted in this same cylindrical portion of the nail.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description suivante donnée en regard des dessins annexés à titre illustratif mais nullement limitatif, dans lesquels figure 1 représente une vue en coupe longitudinale schématique d'un mode de réalisation d'une partie de la tige modulaire pour prothèse de hanche selon l'invention Les figures 2 à 4 représentent, respectivement en vues de face, de côté et de dessous, un mode de réalisation industriel de la tige modulaire selon l'invention en accord avec le schéma selon la figure 1, la figure 2 représentant une vue en coupe longitudinale partielle référencée II sur la figure 3, la figure 3 représentant une vue en coupe longitudinale partielle référencée 111-1I1 sur la figure 2 et la figure 4 représentant une vue en coupe transversale 'férencée IV-IV sur la figure 2, et La figure 5 est une vue en éclaté de la tige modulaire selon l'invention telle que représentée sur les figures 1 à 4. Other characteristics and advantages of the invention will appear during the following description given with reference to the accompanying drawings by way of illustration but in no way limitative, in which FIG. 1 represents a schematic longitudinal section view of an embodiment of a part of the modular rod for hip prosthesis according to the invention FIGS. 2 to 4 represent, respectively in front, side and bottom views, an industrial embodiment of the modular rod according to the invention in accordance with the diagram according to Figure 1, Figure 2 showing a partial longitudinal sectional view referenced II in Figure 3, Figure 3 showing a partial longitudinal sectional view referenced 111-1I1 in Figure 2 and Figure 4 showing a cross-sectional view 'referenced IV-IV in Figure 2, and Figure 5 is an exploded view of the modular rod according to the invention as shown su r Figures 1 to 4.

II est tout d'abord précisé que, sur l'ensemble des figures, les mêmes 'férences désignent les mêmes éléments, quelle que soit la figure sur laquelle elles apparaissent quel que soit le mode de représentation de ces éléments. It is firstly specified that, on all the figures, the same 'ferences designate the same elements, whatever the figure on which they appear regardless of the mode of representation of these elements.

présente invention concerne les tiges de prothèses, et plus particulièrement tiges modulaires prothèses de hanche, aptes à porter la partie mâle de la rotule sphérique de ces protheses. The present invention relates to prosthetic rods, and more particularly modular hip prosthesis rods, capable of carrying the male part of the spherical ball joint of these prostheses.

Par référence à l'ensemble des figures 1 à 5, la tige modulaire comporte un clou centromédullaire 1 de forme sensiblement oblongue et ayant une forme comme celle qui est plus particulièrement illustrée sur les figures 2, 3 et 5. Ce clou comporte deux parties respectivement proximale 2 et distale 13 aboutées l'une à l'autre, sa partie proximale 2 comportant une portion 3 de forme cylindrique de révolution. With reference to all of FIGS. 1 to 5, the modular rod comprises a centromedullary nail 1 of substantially oblong shape and having a shape like that which is more particularly illustrated in FIGS. 2, 3 and 5. This nail has two parts respectively proximal 2 and distal 13 abutted to each other, its proximal part 2 comprising a portion 3 of cylindrical shape of revolution.

La tige modulaire comporte en outre une pièce d'appui 4 comportant percée traversante 5 cylindrique de révolution complémentaire de la portion cylindrique de révolution 3 du clou 1, des premiers moyens d'appui en butée de référence 6 pour définir la position de la pièce d'appui 4 par rapport au clou I quand la pièce d'appui 4 est enfichée sur la portion cylindrique de révolution 3, une pièce de support 7 apte à porter la partie ma de la rotule sphérique de la prothèse, cette pièce de support comportant une percée traversante 8 cylindrique de révolution complémentaire de la portion cylindrique de révolution 3 du clou 1, et seconds moyens d'appui en butée de référence 9 pour définir la position de la pièce support 7 par rapport à la pièce d'appui 4 quand la pièce de support est enfichée sur la portion cylindrique de révolution 3 du clou 1 après que la pièce d'appui 4 ait été enfichée sur cette même portion cylindrique 3. The modular rod further comprises a support piece 4 comprising through-hole 5 cylindrical of revolution complementary to the cylindrical portion of revolution 3 of the nail 1, first support means in reference stop 6 to define the position of the piece d 'support 4 relative to the nail I when the support piece 4 is plugged into the cylindrical portion of revolution 3, a support piece 7 capable of carrying the part ma of the spherical ball joint of the prosthesis, this support piece comprising a through breakthrough 8 cylindrical of revolution complementary to the cylindrical portion of revolution 3 of the nail 1, and second support means in reference stop 9 to define the position of the support piece 7 relative to the support piece 4 when the piece of support is inserted on the cylindrical portion of revolution 3 of the nail 1 after the support piece 4 has been inserted on this same cylindrical portion 3.

La partie mâle de la rotule sphérique de la prothèse est généralement constituée par sphère, par exemple en titane, céramique, etc., qui est enfichée par exemple sur un cône morse 10. Cette sphère de rotule n'a pas été représentée, mais simplement évoquée en traits interrompus sur la figure 5, car elle est bien connue en elle-même. The male part of the spherical ball joint of the prosthesis is generally constituted by a sphere, for example made of titanium, ceramic, etc., which is plugged, for example, into a Morse cone 10. This ball joint sphere has not been shown, but simply mentioned in broken lines in Figure 5, because it is well known in itself.

Dans une réalisation préférentielle, les premiers moyens d'appui en butée de référence pour définir la position de la pièce d'appui par rapport au clou quand elle est enfichée la portion cylindrique de révolution du clou, sont constitués par une première surface de référence 11 réalisée sur une couronne 12 solidaire du clou et située à la frontière entre parties proximale 2 et distale 13 du clou 1, et une seconde surface de référence 14 réalisée la pièce d'appui 4, cette seconde surface de référence 14 ayant une forme sensiblement complémentaire de la première surface de référence 11 de façon que ces deux première seconde surfaces de référence se superposent par congruence lorsque la pièce d'appui 4 enfichée sur la portion cylindrique de révolution 3 du clou 1. Avantageusement, ces deux première 11 et seconde 14 surfaces de référence complémentaires sont tronconiques révolution, la surface femelle 14 étant réalisée sur la pièce d'appui 4 et la surface mâle 11 étant donc réalisée sur la couronne 12 pour former un emboîtement de type cône morse. In a preferred embodiment, the first reference abutment support means for defining the position of the support piece relative to the nail when it is inserted the cylindrical portion of revolution of the nail, are constituted by a first reference surface 11 produced on a crown 12 integral with the nail and situated at the border between proximal 2 and distal 13 of the nail 1, and a second reference surface 14 produced by the support piece 4, this second reference surface 14 having a substantially complementary shape of the first reference surface 11 so that these two first second reference surfaces overlap by congruence when the bearing piece 4 inserted on the cylindrical portion of revolution 3 of the nail 1. Advantageously, these two first 11 and second 14 surfaces of complementary reference are frustoconical revolution, the female surface 14 being produced on the piece of a ppui 4 and the male surface 11 therefore being produced on the crown 12 to form an interlocking of the Morse taper type.

Quant aux seconds moyens d'appui en butée de référence 9 pour définir la position de la pièce de support par rapport à la pièce d'appui quand la pièce de support est enfichée sur la portion cylindrique de révolution du clou après que la pièce d'appui ait été enfichée sur cette même portion cylindrique de révolution, ils sont constitués par une troisième surface de référence 21 réalisée sur la pièce d'appui 4 et une quatrième surface de référence 22 réalisée sur la pièce de support 7, cette quatrième surface de référence 22 ayant une forme sensiblement complémentaire de la troisième surface de référence 21 de façon que ces deux troisième et quatrième surfaces de référence se superposent lorsque la pièce de support 7 est enfichée, après la pièce d'appui 4, sur la portion cylindrique de révolution 3 du clou 1. Avantageusement, les deux troisième 21 et quatrième 22 surfaces de référence complémentaires sont tronconiques de révolution, la surface 21 étant réalisée sur la pièce d'appui 4 et la surface 22 sur la pièce de support 7. De façon préférentielle, la tige modulaire comporte en outre des moyens 30 pour indexer angulairement la position de la pièce support 7 par rapport à la pièce d'appui 4 quand elles sont enfichées sur la portion cylindrique de révolution 3 du clou 1. Ces moyens 30 comportent par exemple une goupille 31 montée solidaire de l'une des deux pièces 4, 7, en l'occurrence la pièce de support dans la réalisation illustrée sur les figures, et une pluralité de n logements 32 réalisés sur l'autre pièce 7, en l'occurrence sur la pièce d'appui 4, la goupille 31 et les logements 32 étant agencés respectivement sur les deux pièces de façon que, lorsque la pièce de support 7 subit pas à pas des rotations successives autour de la portion cylindrique de révolution 3 du clou, la goupille puisse coopérer avec successivement les n logements 32 et que la pièce de support 7 puisse ainsi prendre n positions angulaires par rapport à la pièce d'appui 4, ces n positions angulaires étant matérialisées sur la figure 4 par n rayons et donc sept positions avec la réalisation illustrée. Dans le mode de réalisation illustré, les logements 32 sont au nombre de sept, comme plus particulièrement visible sur la figure 4, et la pièce de support 7 peut donc prendre sept positions angulaires différentes par rapport à la pièce d'appui 4. As for the second reference abutment support means 9 for defining the position of the support piece with respect to the support piece when the support piece is inserted on the cylindrical portion of revolution of the nail after the piece of support has been plugged into this same cylindrical portion of revolution, they are constituted by a third reference surface 21 produced on the support piece 4 and a fourth reference surface 22 produced on the support piece 7, this fourth reference surface 22 having a shape substantially complementary to the third reference surface 21 so that these two third and fourth reference surfaces are superimposed when the support piece 7 is inserted, after the support piece 4, on the cylindrical portion of revolution 3 of the nail 1. Advantageously, the two third 21 and fourth 22 complementary reference surfaces are frustoconical of revol ution, the surface 21 being formed on the support piece 4 and the surface 22 on the support piece 7. Preferably, the modular rod further comprises means 30 for angularly indexing the position of the support piece 7 relative to to the support part 4 when they are plugged into the cylindrical portion of revolution 3 of the nail 1. These means 30 comprise for example a pin 31 mounted integral with one of the two parts 4, 7, in this case the part support in the embodiment illustrated in the figures, and a plurality of n housings 32 produced on the other part 7, in this case on the support part 4, the pin 31 and the housings 32 being arranged respectively on the two parts so that, when the support part 7 undergoes successive rotations around the cylindrical portion of revolution 3 of the nail, the pin can cooperate successively with the n housings 32 and the part support 7 can thus take n angular positions relative to the support piece 4, these n angular positions being embodied in FIG. 4 by n radii and therefore seven positions with the illustrated embodiment. In the illustrated embodiment, there are seven housings 32, as more particularly visible in FIG. 4, and the support piece 7 can therefore take seven different angular positions relative to the support piece 4.

En outre et de façon connue, dans le but parfaitement assujettir le clou médullaire à la paroi osseuse du fémur, la partie distale 13 du clou médullaire 1 comporte au moins un orifice traversant 40 suivant un axe 41 sensiblement perpendiculaire à l'axe longitudinal 42 du clou. Cependant, selon une caractéristique de l'invention, au moins une portion 43 de la paroi latérale 44 de cet orifice traversant présente une forme sensiblement tronconique de révolution apte à recevoir une portion correspondante 45 d'une vis de fixation osseuse 46, figures 2 et 5. Dans une réalisation avantageuse, pour permettre la fixation par l'un ou l'autre des côtés du clou, la paroi latérale 44 de cet orifice traversant 40 présente la forme de deux troncs de cônes de révolution opposés par leur petite base sensiblement sur l'axe longitudinal du clou, les deux grandes bases étant situées sur la surface extérieure du clou. In addition and in a known manner, with the aim of perfectly securing the medullary nail to the bone wall of the femur, the distal part 13 of the medullary nail 1 comprises at least one through orifice 40 along an axis 41 substantially perpendicular to the longitudinal axis 42 of the nail. However, according to a characteristic of the invention, at least a portion 43 of the side wall 44 of this through orifice has a substantially frustoconical shape of revolution capable of receiving a corresponding portion 45 of a bone fixation screw 46, FIGS. 2 and 5. In an advantageous embodiment, to allow fixing by one or the other of the sides of the nail, the side wall 44 of this through hole 40 has the shape of two trunks of cones of revolution opposite by their small base substantially on the longitudinal axis of the nail, the two large bases being located on the exterior surface of the nail.

Enfin, la tige modulaire comporte en outre des moyens 50 pour bloquer l'empilement de la pièce de support 7 sur la pièce d'appui 4 lorsqu'elles sont enfichées sur la partie cylindrique de révolution 3 du clou 1. Comme illustré, ces moyens de blocage 50 sont constitués par une vis de fixation 51 qui se visse dans l'extrémité proximale du clou 1 en emprisonnant l'empilement des deux pièces d'appui 4 et de support 7 entre sa tête 52 et la couronne 12.  Finally, the modular rod further comprises means 50 for blocking the stacking of the support piece 7 on the support piece 4 when they are plugged into the cylindrical part of revolution 3 of the nail 1. As illustrated, these means locking 50 are constituted by a fixing screw 51 which is screwed into the proximal end of the nail 1 while trapping the stack of the two support pieces 4 and support 7 between its head 52 and the crown 12.

L'implantation, dans le canal médullaire d'un fémur, d'une tige modulaire de prothèse selon l'invention comme décrite ci-dessus, ne pose aucune difficulté, d'autant plus que sa structure permet implantation anatomique aussi bien dans un fémur droit que dans un fémur gauche. The implantation, in the medullary canal of a femur, of a modular prosthesis rod according to the invention as described above, poses no difficulty, especially since its structure allows anatomical implantation as well in a femur right than in a left femur.

Le praticien commence par implanter le clou 1, seul, dans le canal médullaire de façon qu'il suive la courbure naturelle antéropostérieure du fémur. II introduit ensuite une vis 46 dans l'orifice traversant 40 de la partie distale 13 du clou, en traversant paroi osseuse du fémur et de façon la portion tronconique 45 de la vis vienne se loger en emboîtement conique dans la partie tronconique complémentaire 43 de la paroi latérale 44 de l'orifice. Eventuellement, l'implantation de la vis se fait par référence à un repaire réalisé sur la partie haute du clou qui termine la portion cylindrique de révolution 3. The practitioner begins by implanting the nail 1, alone, in the medullary canal so that it follows the natural anteroposterior curvature of the femur. He then introduces a screw 46 into the through hole 40 of the distal part 13 of the nail, crossing the bone wall of the femur and so the frustoconical portion 45 of the screw comes to be housed in conical interlocking in the complementary frustoconical part 43 of the side wall 44 of the orifice. Optionally, the implantation of the screw is done by reference to a mark made on the upper part of the nail which terminates the cylindrical portion of revolution 3.

Lorsque le clou est ainsi implanté dans le canal médullaire du fémur et fixé au fémur, la pièce d'appui est enfichée sur la portion cylindrique de révolution 3 pour qu'elle remplisse sensiblement de façon équilibrée la partie haute du fémur dont tête et le col ont été enlevés. When the nail is thus implanted in the medullary canal of the femur and fixed to the femur, the support piece is plugged into the cylindrical portion of revolution 3 so that it substantially substantially fills the upper part of the femur whose head and neck have been removed.

Quand le praticien a trouvé la place normale de cette pièce d'appui 4, il la bloque sur la surface tronconique de la couronne par emboîtement du type cône morse. Il enfiche ensuite la pièce de support 7 autour de la portion cylindrique de révolution 3 du clou en lui donnant, par rapport à la pièce d'appui 4, la position angulaire choisie pour obtenir la meilleure position possible la partie mâle de la rotule sphérique apte à coopérer avec la partie femelle constituée par un cotyle implanté dans la cavité cotyloïdienne du bassin. La position angulaire de la pièce de support 7 par rapport à la pièce d'appui 4 est figée par coopération de la goupille 31 avec l'un des logements 32. Sa position longitudinale suivant l'axe du clou est bloquée par l'emboîtement conique de type cône morse entre les surfaces de référence tronconiques 21 et 22. When the practitioner has found the normal place for this support piece 4, he blocks it on the frustoconical surface of the crown by interlocking of the Morse cone type. It then plugs the support piece 7 around the cylindrical portion of revolution 3 of the nail by giving it, relative to the support piece 4, the angular position chosen to obtain the best possible position the male part of the suitable spherical ball joint to cooperate with the female part constituted by a cup implanted in the acetabular cavity of the pelvis. The angular position of the support piece 7 relative to the support piece 4 is fixed by cooperation of the pin 31 with one of the housings 32. Its longitudinal position along the axis of the nail is blocked by the conical fitting Morse taper type between the frustoconical reference surfaces 21 and 22.

Ensuite, l'ensemble est maintenu par les moyens de fixation 50, comme la vis 51. Then, the assembly is held by the fixing means 50, like the screw 51.

La description faite ci-dessus met incontestablement en évidence les avantages présentés par la tige modulaire selon l'invention par rapport aux tiges modulaires de l'art antérieur. Notamment, sa structure par habillage de l'extrémité proximale clou à l'aide des deux pièces d'appui 4 et de support 7 évite la création de points de faiblesse et donc le risque d'une rupture de la tige, tout en facilitant son implantation dans le fémur, aussi bien un fémur droit qu'un fémur gauche.The description given above undoubtedly highlights the advantages presented by the modular rod according to the invention compared to the modular rods of the prior art. In particular, its structure by covering the proximal nail end with the two support pieces 4 and support 7 avoids the creation of points of weakness and therefore the risk of breaking the rod, while facilitating its implantation in the femur, both a right femur and a left femur.

Claims (2)

REVENDICATIONS 1. Tige modulaire pour prothèse de hanche, apte à porter la partie mâle la rotule sphérique de ladite prothèse de hanche, caractérisée par le fait qu'elle comporte un clou centromédullaire (1), ledit clou comportant, à sa partie proximale (2), une portion cylindrique de révolution (3), une pièce d'appui (4) comportant une percée traversante (5) cylindrique révolution complémentaire de ladite portion cylindrique de révolution (3) du clou (1), des premiers moyens d'appui en butée de référence ((6) pour définir la position de ladite pièce d'appui (4) par rapport audit clou (1) quand ladite pièce d'appui est enfichée sur ladite portion cylindrique de révolution (3) du clou, pièce de support (7) apte à porter la partie mâle de la rotule sphérique, ladite pièce de support comportant une percée traversante (8) cylindrique de révolution complémentaire de ladite portion cylindrique de révolution (3) du clou (1), et seconds moyens d'appui en butée de référence (9) pour définir la position de ladite pièce de support (7) par rapport à ladite pièce d'appui (4) quand ladite pièce de support est enfichée sur ladite portion cylindrique de révolution (3) du clou (1) après que ladite pièce d'appui (4) ait été enfichée sur cette même portion cylindrique du clou.1. Modular rod for hip prosthesis, capable of carrying the male part of the spherical ball joint of said hip prosthesis, characterized in that it comprises a centromedullary nail (1), said nail comprising, at its proximal part (2) , a cylindrical portion of revolution (3), a support piece (4) comprising a through breakthrough (5) cylindrical revolution complementary to said cylindrical portion of revolution (3) of the nail (1), first support means in reference stop ((6) for defining the position of said support piece (4) relative to said nail (1) when said support piece is inserted on said cylindrical portion of revolution (3) of the nail, support piece (7) able to carry the male part of the spherical ball joint, said support part comprising a through-hole (8) cylindrical of revolution complementary to said cylindrical portion of revolution (3) of the nail (1), and second support means in abutment of r reference (9) to define the position of said support piece (7) relative to said support piece (4) when said support piece is inserted on said cylindrical portion of revolution (3) of the nail (1) after said support piece (4) has been inserted on this same cylindrical portion of the nail. 2. Tige modulaire selon la revendication 1, caractérisée par le fait que les premiers moyens d'appui en butée de référence (6) pour définir la position de la pièce d'appui par rapport au clou quand elle est enfichée sur la portion cylindrique de révolution du clou sont constitués par une première surface de référence (11) réalisée sur une couronne (1 solidaire du clou ladite couronne étant située à la frontière entre les parties proximale et distale (13) dudit clou, et une seconde surface de référence (14) réalisée sur la pièce d'appui (4), cette seconde surface de référence (14) ayant une forme sensiblement complémentaire de la première surface de référence (11) de façon que ces deux première et seconde surfaces de référence superposent lorsque la pièce d'appui (4) est enfichée sur la portion cylindrique de révolution (3) du clou (1). Tige modulaire selon la revendication 2, caractérisée par le fait les deux première (11) et seconde (14) surfaces de référence complémentaires sont tronconiques de révolution. 4. Tige modulaire selon l'une des revendications 1 à 3, caractérisée par le fait que les seconds moyens d'appui en butée de référence (9) pour définir la position de la pièce de support par rapport à la pièce d'appui quand la pièce de support est enfichée sur la portion cylindrique de révolution du clou après que la pièce d'appui ait été enfichée sur cette même portion cylindrique de révolution sont constitués par une troisième surface de référence (21) réalisée sur la pièce d'appui (4) et une quatrième surface de référence (22) réalisée sur la pièce de support (7), cette quatrième surface de référence (22) ayant une forme sensiblement complémentaire de la troisième surface de référence (21) de façon que ces deux troisième quatrième surfaces de référence se superposent lorsque la pièce de support (7) est enfichée après la pièce d'appui sur la portion cylindrique de révolution (3) du clou (1). 5. Tige modulaire selon la revendication 4, caractérisée par le fait que les deux troisième (21) et quatrième (22) surfaces de référence complémentaires sont tronconiques de révolution. 6. Tige modulaire selon l'une des revendications 1 à 5, caractérisée par le fait qu'elle comporte en outre moyens (30) pour indexer angulairement la position de la pièce de support (7) par rapport à la pièce d'appui (4) quand elles sont enfichées sur la portion cylindrique de révolution (3) du clou (1). 7. Tige modulaire selon la revendication 6, caractérisée par le fait que les moyens (30) pour indexer angulairement la position de la pièce de support par rapport à la pièce d'appui quand elles sont enfichées sur la portion cylindrique de révolution du clou comportent une goupille (31) montee solidaire de l'une des deux pièces (4, 7) et une pluralité de n logements (32) réalisés sur l'autre pièce (7, 4), ladite goupille (31) et lesdits logements (32) étant agencés respectivement sur les deux pièces de façon que, lorsque la pièce de support (7) subit pas à pas des rotations successives autour de la portion cylindrique de révolution (3) du clou, ladite goupille (3 puisse coopérer avec successivement les n logements (32) et que la pièce de support (7) puisse ainsi prendre n positions angulaires par rapport à la pièce d'appui (4). 8. Tige modulaire selon l'une des revendications 1 à 7, caractérisée par le fait que la partie distale (13) du clou médullaire (1) comporte au moins un orifice traversant (40) suivant un axe (41) sensiblement perpendiculaire à l'axe longitudinal (42) du clou (1), au moins une portion (43) de la paroi latérale (44) dudit orifice traversant présentant une forme sensiblement tronconique de révolution. 9. Tige modulaire selon la revendication 8, caractérisée par le fait que la paroi latérale (44) dudit orifice traversant (40) présente la forme de deux troncs de cônes de révolution opposés par leur petite base sensiblement sur longitudinal dudit clou, les deux grandes bases étant situées sur la surface extérieure du clou. 10. Tige modulaire selon l'une des revendications 1 à 9, caractérisée par le fait qu'elle comporte en outre des moyens (50) pour bloquer l'empilement de la pièce de support (7) sur la pièce d'appui (4) lorsqu'elles sont enfichées la partie cylindrique de révolution (3) du clou (1).2. Modular rod according to claim 1, characterized in that the first reference abutment support means (6) for defining the position of the support piece relative to the nail when it is inserted on the cylindrical portion of nail revolution consist of a first reference surface (11) formed on a crown (1 integral with the nail, said crown being situated at the border between the proximal and distal parts (13) of said nail, and a second reference surface (14 ) produced on the support piece (4), this second reference surface (14) having a shape substantially complementary to the first reference surface (11) so that these two first and second reference surfaces overlap when the piece d the support (4) is plugged into the cylindrical portion of revolution (3) of the nail (1). Modular rod according to claim 2, characterized in that the two first (11) and second (1 4) complementary reference surfaces are tapered in revolution. 4. Modular rod according to one of claims 1 to 3, characterized in that the second support means in reference stop (9) for defining the position of the support part relative to the support part when the support piece is plugged into the cylindrical portion of revolution of the nail after the support piece has been plugged into this same cylindrical portion of revolution consist of a third reference surface (21) produced on the support piece ( 4) and a fourth reference surface (22) produced on the support piece (7), this fourth reference surface (22) having a shape substantially complementary to the third reference surface (21) so that these two third fourth reference surfaces are superimposed when the support piece (7) is inserted after the support piece on the cylindrical portion of revolution (3) of the nail (1). 5. Modular rod according to claim 4, characterized in that the two third (21) and fourth (22) complementary reference surfaces are frustoconical of revolution. 6. Modular rod according to one of claims 1 to 5, characterized in that it further comprises means (30) for angularly indexing the position of the support piece (7) relative to the support piece ( 4) when they are plugged into the cylindrical portion of revolution (3) of the nail (1). 7. Modular rod according to claim 6, characterized in that the means (30) for angularly indexing the position of the support part with respect to the support part when they are inserted on the cylindrical portion of revolution of the nail comprise a pin (31) mounted integral with one of the two parts (4, 7) and a plurality of n housings (32) produced on the other part (7, 4), said pin (31) and said housings (32 ) being arranged respectively on the two pieces so that, when the support piece (7) undergoes successive rotations around the cylindrical portion of revolution (3) of the nail, said pin (3 can cooperate successively with the n housing (32) and that the support piece (7) can thus take n angular positions relative to the support piece (4) 8. Modular rod according to one of claims 1 to 7, characterized in that the distal part (13) of the medullary nail re (1) comprises at least one through orifice (40) along an axis (41) substantially perpendicular to the longitudinal axis (42) of the nail (1), at least a portion (43) of the side wall (44) of said through orifice having a substantially frustoconical shape of revolution. 9. Modular rod according to claim 8, characterized in that the side wall (44) of said through orifice (40) has the shape of two trunks of cones of revolution opposite by their small base substantially on longitudinal of said nail, the two large bases being located on the exterior surface of the nail. 10. Modular rod according to one of claims 1 to 9, characterized in that it further comprises means (50) for blocking the stacking of the support piece (7) on the support piece (4 ) when plugged in the cylindrical part of revolution (3) of the nail (1).
FR9912271A 1999-10-01 1999-10-01 MODULAR ROD FOR HIP PROSTHESIS Expired - Fee Related FR2799115B1 (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1175877A2 (en) * 2000-07-29 2002-01-30 Draenert, Klaus, Prof.Dr.med. Modular revision prosthesis
EP1197182A2 (en) * 2000-09-09 2002-04-17 Aesculap AG & Co. KG Modular endoprosthesis with adjusting device and drill-guide
FR2842725A1 (en) * 2002-07-26 2004-01-30 Jean Louis Dore Range of prosthesis femoral hip implants each have slit through distal portion emerging in distal end, with slit proximal end emerging in transverse hole in same direction as slit, and hole diameter being variable between implants
JP2004249105A (en) * 2003-02-18 2004-09-09 Zimmer Technology Inc Constituent for tibia of knee prostheses member, its assembling tool, and its usage
WO2008064037A2 (en) * 2006-11-17 2008-05-29 Synthes (U.S.A.) Intramedullary nail including stable locking bolts
US7799086B2 (en) 2002-04-25 2010-09-21 Zimmer Technology, Inc. Modular bone implant, tools, and method
US8048163B2 (en) 2002-02-20 2011-11-01 Zimmer, Inc. Knee arthroplasty prosthesis
US8690951B2 (en) 2005-11-18 2014-04-08 Zimmer, Gmbh Base platform for an artificial joint

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002578A (en) * 1990-05-04 1991-03-26 Venus Corporation Modular hip stem prosthesis apparatus and method
EP0592897A1 (en) * 1992-10-13 1994-04-20 Philipp Rolf Kropf Modular shaft for a hip prothesis
EP0611225A1 (en) * 1993-02-09 1994-08-17 Medinov Sa Phemoral stem for hip prothesis and instrument for medullary canal preparation
FR2705558A1 (en) * 1993-05-24 1994-12-02 Medinov Sa Hip reconstruction prosthesis and fitting apparatus
DE4320086A1 (en) * 1993-06-17 1994-12-22 Peter Brehm Modular shaft for a revision hip prosthesis system
EP0634154A1 (en) * 1993-07-16 1995-01-18 MEC HINT S.r.l. Improvement in the locking among the components of a multicomponent prosthesis for use in traumatology, orthopedics and veterinary medicine
WO1995013757A1 (en) * 1993-11-18 1995-05-26 Kirschner Medical Corporation Modular prosthesis with shape memory alloy elements
FR2730628A1 (en) * 1995-01-27 1996-08-23 Amp Dev Adjustable two=part femoral implant prosthesis for hip replacement
US5725592A (en) * 1996-10-29 1998-03-10 Hayes Medical, Inc. Modular prosthesis having neck component connected to stem component through cavity in body component
EP0841041A2 (en) * 1996-11-12 1998-05-13 Johnson & Johnson Medical Ltd. Hip joint prosthesis
DE19712758A1 (en) * 1997-03-27 1998-10-08 Eska Implants Gmbh & Co Vibration-proof conical clamp connection for bone implants

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002578A (en) * 1990-05-04 1991-03-26 Venus Corporation Modular hip stem prosthesis apparatus and method
EP0592897A1 (en) * 1992-10-13 1994-04-20 Philipp Rolf Kropf Modular shaft for a hip prothesis
EP0611225A1 (en) * 1993-02-09 1994-08-17 Medinov Sa Phemoral stem for hip prothesis and instrument for medullary canal preparation
FR2705558A1 (en) * 1993-05-24 1994-12-02 Medinov Sa Hip reconstruction prosthesis and fitting apparatus
DE4320086A1 (en) * 1993-06-17 1994-12-22 Peter Brehm Modular shaft for a revision hip prosthesis system
EP0634154A1 (en) * 1993-07-16 1995-01-18 MEC HINT S.r.l. Improvement in the locking among the components of a multicomponent prosthesis for use in traumatology, orthopedics and veterinary medicine
WO1995013757A1 (en) * 1993-11-18 1995-05-26 Kirschner Medical Corporation Modular prosthesis with shape memory alloy elements
FR2730628A1 (en) * 1995-01-27 1996-08-23 Amp Dev Adjustable two=part femoral implant prosthesis for hip replacement
US5725592A (en) * 1996-10-29 1998-03-10 Hayes Medical, Inc. Modular prosthesis having neck component connected to stem component through cavity in body component
EP0841041A2 (en) * 1996-11-12 1998-05-13 Johnson & Johnson Medical Ltd. Hip joint prosthesis
DE19712758A1 (en) * 1997-03-27 1998-10-08 Eska Implants Gmbh & Co Vibration-proof conical clamp connection for bone implants

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1175877A3 (en) * 2000-07-29 2003-10-22 Draenert, Klaus, Prof.Dr.med. Modular revision prosthesis
EP1175877A2 (en) * 2000-07-29 2002-01-30 Draenert, Klaus, Prof.Dr.med. Modular revision prosthesis
EP1197182A2 (en) * 2000-09-09 2002-04-17 Aesculap AG & Co. KG Modular endoprosthesis with adjusting device and drill-guide
EP1197182A3 (en) * 2000-09-09 2002-04-24 Aesculap AG & Co. KG Modular endoprosthesis with adjusting device and drill-guide
US8092546B2 (en) 2002-02-20 2012-01-10 Zimmer, Inc. Knee arthroplasty prosthesis
US9072605B2 (en) 2002-02-20 2015-07-07 Zimmer, Inc. Knee arthroplasty prosthesis
US8048163B2 (en) 2002-02-20 2011-11-01 Zimmer, Inc. Knee arthroplasty prosthesis
US8092545B2 (en) 2002-02-20 2012-01-10 Zimmer, Inc. Knee arthroplasty prosthesis method
US7182786B2 (en) * 2002-04-25 2007-02-27 Zimmer Technology, Inc. Modular bone implant, tool, and method
US7799086B2 (en) 2002-04-25 2010-09-21 Zimmer Technology, Inc. Modular bone implant, tools, and method
US7857858B2 (en) * 2002-04-25 2010-12-28 Zimmer Technology, Inc. Modular bone implant, tool, and method
US8241367B2 (en) 2002-04-25 2012-08-14 Zimmer, Inc. Modular bone implant, tool, and method
US8075628B2 (en) 2002-04-25 2011-12-13 Zimmer, Inc. Modular bone implant, tools, and method
FR2842725A1 (en) * 2002-07-26 2004-01-30 Jean Louis Dore Range of prosthesis femoral hip implants each have slit through distal portion emerging in distal end, with slit proximal end emerging in transverse hole in same direction as slit, and hole diameter being variable between implants
JP4704692B2 (en) * 2003-02-18 2011-06-15 ジンマー テクノロジー，インコーポレイティド Tibial component of knee prosthesis, assembly tool thereof, and method of use thereof
JP2004249105A (en) * 2003-02-18 2004-09-09 Zimmer Technology Inc Constituent for tibia of knee prostheses member, its assembling tool, and its usage
US8690951B2 (en) 2005-11-18 2014-04-08 Zimmer, Gmbh Base platform for an artificial joint
WO2008064037A3 (en) * 2006-11-17 2008-08-07 Synthes Usa Intramedullary nail including stable locking bolts
WO2008064037A2 (en) * 2006-11-17 2008-05-29 Synthes (U.S.A.) Intramedullary nail including stable locking bolts

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