FR2600526A1 - Threaded rod for prosthesis - Google Patents

Threaded rod for prosthesis Download PDF

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Publication number
FR2600526A1
FR2600526A1 FR8608526A FR8608526A FR2600526A1 FR 2600526 A1 FR2600526 A1 FR 2600526A1 FR 8608526 A FR8608526 A FR 8608526A FR 8608526 A FR8608526 A FR 8608526A FR 2600526 A1 FR2600526 A1 FR 2600526A1
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France
Prior art keywords
thread
threaded
depth
barrel
prosthesis
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Granted
Application number
FR8608526A
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French (fr)
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FR2600526B1 (en
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Individual
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Individual
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Priority to FR8608526A priority Critical patent/FR2600526B1/en
Publication of FR2600526A1 publication Critical patent/FR2600526A1/en
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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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • 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
    • 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
    • A61F2002/30433—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
    • 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
    • A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0041—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using additional screws, bolts, dowels or rivets, e.g. connecting screws

Abstract

Prosthesis rod 5 intended to be inserted into a bone, consisting of a shaft 6, at whose external periphery a thread 7 is cut, characterised in that the lower end of the rod 5 comprises four successive separate portions which are connected without any discontinuity, namely in the following order: - a first portion 8 which is threaded 7 in which the depth of the thread 7 is constant; - a second threaded portion 12 in which the depth of the thread 11 progressively decreases to nothing; - a third cylindrical portion 13 which is not threaded; - finally, a fourth rounded portion 14 forming the end proper.

Description

TIGE FILETEE DE PROTHESE.PROSTHESIS THREADED ROD.

L'invention concerne une tige filetée perfectionnée de prothèse. The invention relates to an improved threaded rod for a prosthesis.

On connait depuis longtemps des tiges de prothèse à fixation primaire, c'est-à-dire ne faisant appel à du ciment, dont la caractéristique est d'être constituée par un fût à la périphérie externe duquel est taillé un filetage. Ainsi, par vissage, on peut insérer ces tiges dans l'os à prothéser. Prosthesis rods with primary fixation have been known for a long time, that is to say not using cement, the characteristic of which is to be constituted by a barrel at the outer periphery of which a thread is cut. Thus, by screwing, these rods can be inserted into the bone to be prosthetic.

Les tiges de prothèse réalisées jusqu'à ce jour sont filetées jusqu'à l'extrémité du fût, que celui-ci soit cylindrique ou conique. Ainsi, dans le brevet FR-A2 295 729, on a même précisé que l'extrémité du fût devait comporter des surfaces d'appui destinées à venir buter contre les surfaces osseuses correspondantes. The prosthesis stems produced to date are threaded to the end of the barrel, whether it is cylindrical or conical. Thus, in patent FR-A2 295 729, it was even specified that the end of the barrel must have bearing surfaces intended to abut against the corresponding bone surfaces.

Cette disposition, bien que largement répandue, présente toutefois certains inconvénients. En effet, le fait que la tige se termine en même temps que le filet, crée autour des derniers tours de ce filet une concentration de contraintes en bout de tige, comme le prouve des scintigraphies osseuses pratiquées dans ces cas. This provision, although widely used, however has certain drawbacks. Indeed, the fact that the rod ends at the same time as the net, creates around the last turns of this net a concentration of stresses at the end of the rod, as evidenced by bone scans performed in these cases.

Cette concentration de contrainte entraîne souvent une corticalisation de tout ou partie du fût fémoral au bout de la tige diminuant l'élasticité du fût fémoral à ce niveau et pouvant être responsable de douleurs de la cuisse, parfois très importantes.This concentration of stress often leads to corticalization of all or part of the femoral barrel at the end of the rod, reducing the elasticity of the femoral barrel at this level and which can be responsible for thigh pain, sometimes very significant.

L'invention pallie ces inconvénients. Elle vise une tige filetée de prothèse du type en question qui soit facile à mettre en place et n'induise pas à la longue les douleurs visées ci-dessus.  The invention overcomes these drawbacks. It is aimed at a threaded prosthesis rod of the type in question which is easy to put in place and does not in the long term induce the pains referred to above.

Cette tige de prothèse selon l'invention, destinée à être insérée dans un os, constituée par un fût à la périphérie externe duquel est taillé un filetage, se caractérise en ce que l'extrémité inférieure de la tige comprend quatre portions distinctes raccordées sans solution de discontinuité, à savoir dans l'ordre
- une première portion filetée dans laquelle la
profondeur du filet est contante
- une seconde portion filetée dans laquelle la
profondeur du filet est progressivement décrois
sante
- une troisième portion cylindrique exempte de fi
let
- enfin, une quatrième portion arrondie formant
l'extrémité proprement dite.This prosthesis stem according to the invention, intended to be inserted into a bone, constituted by a barrel at the outer periphery of which is cut a thread, is characterized in that the lower end of the stem comprises four distinct portions connected without solution discontinuity, namely in order
- a first threaded portion in which the
net depth is constant
- a second threaded portion in which the
depth of the thread is gradually decreasing
health
- a third cylindrical portion free of fi
let
- finally, a fourth rounded portion forming
the end itself.

En d'autres termes, l'invention consiste
- tout d'abord à ménager à l'extrémité libre du fût une portion lisse arrondie sans filet, de sorte que sous l'effet des contraintes en bout de tige, cette surface lisse prenne appui contre l'os et plus précisément contre les parois du canal médulaire pour éviter ainsi l'apparition des douleurs. constatées jusqu'alors dans les cas précités
- puis à raccorder progressivement cette portion cylindrique lisse à la portion filetée proprement dite, de sorte à ne pas former de décrochement entre la portion lisse et la portion filetée et par là, éviter d'autres contraintes osseuses. Ainsi, on évite des variations brutales de la forme de l'extrémité inférieure de la tige, ce qui diminue au maximum la concentration de contrainte excessive sur les parois du canal médulai-re. In other words, the invention consists
- firstly to provide at the free end of the barrel a smooth rounded portion without a net, so that under the effect of the stresses at the end of the rod, this smooth surface bears against the bone and more precisely against the walls of the medular canal to avoid the appearance of pain. noted so far in the above cases
- Then gradually connect this smooth cylindrical portion to the threaded portion proper, so as not to form a step between the smooth portion and the threaded portion and thereby avoid other bone stresses. This avoids sudden variations in the shape of the lower end of the rod, which minimizes the concentration of excessive stress on the walls of the medullary canal.

Avantageusement, en pratique
- le fût est légèrement conique,
- la tige est en titane et constitue une tige fé
morale de prothèse de hanche.Advantageously, in practice
- the barrel is slightly conical,
- the rod is made of titanium and constitutes a fairy rod
hip prosthesis ethics.

La manière dont l'invention peut être réalisée et les avantages qui en découlent ressortiront mieux de l'exemple de réalisation qui suit, donné à titre indicatif et non limitatif à l'appui des deux figures annexées. The manner in which the invention can be implemented and the advantages which result therefrom will emerge more clearly from the example of embodiment which follows, given by way of nonlimiting indication in support of the two appended figures.

La figure 1 montre en coupe longitudinale partielle sommaire une prothèse de hanche selon l'invention, alors que la figure 2 est une vue agrandie de l'extrémité caractéristique de cette prothèse. FIG. 1 shows in summary partial longitudinal section a hip prosthesis according to the invention, while FIG. 2 is an enlarged view of the characteristic end of this prosthesis.

Cette prothèse fémorale réalisée en titane comprend essentiellement un col prothétique (1) dont la tête (2) reçoit la tête prothétique (3) destinée à être insérée dans la cupule non représentée. Grâce à une vis (4), ce col (1) est solidarisé avec la tige (5) constituée par un fût légèrement conique (6), à la surface externe duquel est taillé le filetage (7) hélicoïdal, de profil approprié, symbolisé à la figure 1. This femoral prosthesis made of titanium essentially comprises a prosthetic neck (1), the head (2) of which receives the prosthetic head (3) intended to be inserted into the cup, not shown. Thanks to a screw (4), this neck (1) is secured to the rod (5) constituted by a slightly conical barrel (6), on the external surface of which is cut the helical thread (7), of suitable profile, symbolized in Figure 1.

Le fût (6) de la tige fémorale (5) présente une section appropriée, telle qu'une section légèrement conique ou encore mieux une section longitudinale effilée en forme de tulipe évasée à rayon variable depuis la pointe jusque vers la tête (9), comme décrit dans la demande de brevet français 85.01 528 déposée par deux des Demandeurs le 31 Janvier 1985. The barrel (6) of the femoral stem (5) has an appropriate section, such as a slightly conical section or better still a tapered longitudinal section in the shape of a tulip flared with variable radius from the point to the head (9), as described in French patent application 85.01 528 filed by two of the Applicants on January 31, 1985.

Selon la caractéristique fondamentale de l'invention, l'extrémité inférieure de la tige (5) comprend quatre portions distinctes raccordées entre elles sans solution de continuité , à savoir dans l'ordre de haut en bas
- une première portion filetée (10), dans laquelle la'profondeur du filet (7) est constante,
- puis une seconde portion filetée (12), dans laquelle la profondeur du filet (11) est progressivement décroissante jusqu'à devenir nulle,
- puis une troisième portion cylindrique (13), lisse, exempte de filet
- enfin, une quatrième portion arrondie (14) formant l'extrémité proprement dite.According to the fundamental characteristic of the invention, the lower end of the rod (5) comprises four distinct portions connected to each other without a solution of continuity, namely in order from top to bottom
- a first threaded portion (10), in which the depth of the thread (7) is constant,
- then a second threaded portion (12), in which the depth of the thread (11) is gradually decreasing until it becomes zero,
- then a third cylindrical portion (13), smooth, free of thread
- Finally, a fourth rounded portion (14) forming the end proper.

Dans une forme de réalisation pratique, le rayon de la portion arrondie (14) est de cinq millimètres, la hauteurhde la portion cylindrique (13) lisse est de quinze millimètres, l'angle i formé par la portion (12) de raccordement progressif du filet est de 300, la profondeur normale du filet (7) est de deux millimètres et la section de raccordement (12)entre les portions (10) et (13) est de quatorze millimètres. Mans les portions filetées contigues (10,12), le pas du filet (7,11) est constant. In a practical embodiment, the radius of the rounded portion (14) is five millimeters, the height h of the smooth cylindrical portion (13) is fifteen millimeters, the angle i formed by the portion (12) of progressive connection of the thread is 300, the normal depth of the thread (7) is two millimeters and the connecting section (12) between the portions (10) and (13) is fourteen millimeters. Mans the contiguous threaded portions (10,12), the pitch of the thread (7,11) is constant.

Comme déjà dit, il est indispensable que le raccordement entre la portion lisse (13) et la portion filetée (10-12) s'effectue sans décrochement, si ce n'est celui
Drovoqué par le filet, afin d'éviter d'autres contraintes osseuses
Comme déjà dit, la tige (5) peut être en tout métal approprié, notamment en titane.As already said, it is essential that the connection between the smooth portion (13) and the threaded portion (10-12) be carried out without a setback, if not that
Trapped by the net, in order to avoid other bone constraints
As already said, the rod (5) can be of any suitable metal, in particular titanium.

Les tiges filetées fémorales selon l'invention présentent de nombreux avantages par rapport à celles connues à ce jour, notamment du fait de la portion d'extrémité lisse (14) qui sert d'appui lors des déviations, on évite ainsi avantageusement l'apparition ultérieure de douleurs caractéristiques.  The femoral threaded rods according to the invention have many advantages compared to those known to date, in particular due to the smooth end portion (14) which serves as a support during deviations, this thus advantageously avoids the appearance subsequent characteristic pain.

Ainsi, les tiges selon l'invention peuvent être utilisées pour toutes les prothèses filetées, notamment les prothèses de hanche à fixation primaire.  Thus, the rods according to the invention can be used for all threaded prostheses, in particular hip prostheses with primary fixation.

Claims (2)

REVENDICATIONS 1/ Tige de prothèse (5) destinée à être insérée dans un os, constituée par un fût (6) à la périphérie externe duquel est taillé un filetage (7), caractérisée en ce que l'extrémité inférieure de la tige (5) comprend quatre portions distinctes successives raccordées sans solution de discontinuité, à savoir dans l'ordre  1 / Prosthesis stem (5) intended to be inserted into a bone, constituted by a barrel (6) at the outer periphery of which is cut a thread (7), characterized in that the lower end of the stem (5) includes four successive separate portions connected without discontinuity solution, namely in order - une première portion (8) filetée (7) dans laquel - a first portion (8) threaded (7) in which le la profondeur du filet (7) est constante the depth of the thread (7) is constant - une seconde portion filetée (12) dans laquelle la - a second threaded portion (12) in which the profondeur du filet (11) est progressivement dé depth of thread (11) is gradually reduced croissante jusqu'à devenir nulle increasing until it becomes zero - une troisième portion cylindrique (13) exempte de - a third cylindrical portion (13) free of filet ; net; - enfin, une quatrième portion arrondie (14) for - finally, a fourth rounded portion (14) for mant l'extrémité proprement dite. mant the end proper. 2/ Tige fémorale (5) de prothèse de hanche à fixation primaire constituée par un fût (6) à la périphérie duquel est taillé un filetage (7), caractérisée 2 / Femoral stem (5) of hip prosthesis with primary fixation constituted by a barrel (6) at the periphery of which is cut a thread (7), characterized - en ce que le fût (6) à base de titane présente une section longitudinale effilée en forme de tulipe évasée depuis la pointe (14) jusqu'à la tête (9) à rayon variable, - in that the barrel (6) based on titanium has a tapered longitudinal section in the shape of a tulip flared from the tip (14) to the head (9) with variable radius, - et en ce que l'extrémité inférieure de la tige (5) comprend quatre portions successives distinctes raccordées entre elles sans solution de discontinuité, à savoir dans l'ordre  - And in that the lower end of the rod (5) comprises four separate successive portions connected together without discontinuity solution, namely in order une première portion filetée'(8) dans la a first threaded portion '(8) in the quelle la profondeur du filet (7) est cons the depth of the thread (7) is cons tante aunt une seconde portion filetée (12) dans la a second threaded portion (12) in the quelle la profondeur du filet (11) est how deep the thread (11) is progressivement décroissante une troisième portion cylindrique (13) gradually decreasing a third cylindrical portion (13) exempte de filet enfin, une quatrième portion arrondie (14) free of net finally, a fourth rounded portion (14) formant l'extrémité proprement dite.  forming the end proper.
FR8608526A 1986-06-10 1986-06-10 PROSTHETIC THREADED ROD. Expired - Lifetime FR2600526B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8608526A FR2600526B1 (en) 1986-06-10 1986-06-10 PROSTHETIC THREADED ROD.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8608526A FR2600526B1 (en) 1986-06-10 1986-06-10 PROSTHETIC THREADED ROD.

Publications (2)

Publication Number Publication Date
FR2600526A1 true FR2600526A1 (en) 1987-12-31
FR2600526B1 FR2600526B1 (en) 1990-06-08

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FR8608526A Expired - Lifetime FR2600526B1 (en) 1986-06-10 1986-06-10 PROSTHETIC THREADED ROD.

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FR (1) FR2600526B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0560691A1 (en) * 1992-03-12 1993-09-15 Merck Biomaterial France Femoral stem for primary fixation hip prosthesis
US5580352A (en) * 1990-06-06 1996-12-03 Sekel; Ronald Distal shaft with fast and slow screw threads

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239979A1 (en) * 1973-08-10 1975-03-07 Pfaudler Werke Ag
CH560042A5 (en) * 1973-11-12 1975-03-27 Rosenthal Stemag Tech Keramik
FR2242065A1 (en) * 1973-08-31 1975-03-28 Oscobal Ag
DE2621666A1 (en) * 1976-05-15 1977-11-24 Hans Dr Reimer Endoprosthesis for hip, knee or angled joint - consists of joint part with shaft anchored in natural or bored bone channel to spread weight over large area
AT351152B (en) * 1975-06-06 1979-07-10 David Thomas BONE JOINT PROSTHESIS
DE2839093A1 (en) * 1978-09-08 1980-03-20 Hans Dr Reimer Hip or knee endoprosthesis - with serrated oblique face on ball joint anchored by threaded shank
FR2576777A1 (en) * 1985-01-31 1986-08-08 Rhenter Jean Luc TOTAL HIP PROSTHESIS WITH PRIMARY FIXING

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2239979A1 (en) * 1973-08-10 1975-03-07 Pfaudler Werke Ag
FR2242065A1 (en) * 1973-08-31 1975-03-28 Oscobal Ag
CH560042A5 (en) * 1973-11-12 1975-03-27 Rosenthal Stemag Tech Keramik
AT351152B (en) * 1975-06-06 1979-07-10 David Thomas BONE JOINT PROSTHESIS
DE2621666A1 (en) * 1976-05-15 1977-11-24 Hans Dr Reimer Endoprosthesis for hip, knee or angled joint - consists of joint part with shaft anchored in natural or bored bone channel to spread weight over large area
DE2839093A1 (en) * 1978-09-08 1980-03-20 Hans Dr Reimer Hip or knee endoprosthesis - with serrated oblique face on ball joint anchored by threaded shank
FR2576777A1 (en) * 1985-01-31 1986-08-08 Rhenter Jean Luc TOTAL HIP PROSTHESIS WITH PRIMARY FIXING

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5580352A (en) * 1990-06-06 1996-12-03 Sekel; Ronald Distal shaft with fast and slow screw threads
EP0560691A1 (en) * 1992-03-12 1993-09-15 Merck Biomaterial France Femoral stem for primary fixation hip prosthesis
FR2688403A1 (en) * 1992-03-12 1993-09-17 Impact FEMALE ROD FOR HIP PROSTHESIS WITH PRIMARY FASTENING.

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