FR2638963A1 - Artificial acetabula with studs for a total hip prosthesis - Google Patents

Artificial acetabula with studs for a total hip prosthesis Download PDF

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Publication number
FR2638963A1
FR2638963A1 FR8815073A FR8815073A FR2638963A1 FR 2638963 A1 FR2638963 A1 FR 2638963A1 FR 8815073 A FR8815073 A FR 8815073A FR 8815073 A FR8815073 A FR 8815073A FR 2638963 A1 FR2638963 A1 FR 2638963A1
Authority
FR
France
Prior art keywords
cap
cup according
shell
plug
plastic lining
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
FR8815073A
Other languages
French (fr)
Other versions
FR2638963B1 (en
Inventor
Jean-Francois Dupuis
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.)
Tornier SAS
Original Assignee
Tornier SAS
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 Tornier SAS filed Critical Tornier SAS
Priority to FR8815073A priority Critical patent/FR2638963B1/en
Publication of FR2638963A1 publication Critical patent/FR2638963A1/en
Application granted granted Critical
Publication of FR2638963B1 publication Critical patent/FR2638963B1/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
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    • A61F2/30721—Accessories
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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
    • A61F2/34—Acetabular cups
    • 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
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    • 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
    • A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
    • A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
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    • 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
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    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
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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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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/30484—Mechanically expandable devices located on the first prosthetic part for locking into or onto the second prosthetic part
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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
    • A61F2002/30535—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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    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0041—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

It comprises a semi-spherical, hollow shell 1 whose outer wall is provided, on the one hand, in its polar region, with three spikes 4 oriented parallel to the polar radius of the shell 1 and, on the other hand, in its intermediate zone, with apertures 5 in which pins 6 engage by force, these pins being oriented in a different direction to that of the spikes 4, while the inside of this shell 1 comprises a truncated cone 1a in which is wedged a complementary truncated cone 2a, formed at the periphery of the plastic lining 2 which comprises a collar 2b provided with means for holding the said lining 2 in a given angular position.

Description

La présente invention est relative à ta partie d'une prothèse tota
le de la hanche qui se Loge dans la cavité du cotyle humain.The present invention relates to your part of a total prosthesis
the hip which is housed in the socket of the human acetabulum.

On sait à ce jour que de nombreuses solutions ont été envisagées pour la mise en place des cotyles artificiels sans l'adjonction de ciments acryliques, en particulier l'utilisation de cotyles fixes avec des vis de fixation ou encore dont l'extérieur comporte un filetage comme dans le document FR-A-2 395 011. Les contraintes osseuses Liées au vissage du cotyle peuvent entraSner, lorsqu'elles sont importantes, une
Lyse de l'os adjacent au métal, entraînant une détérioration progressive dans le temps de la tenue mécanique dudit cotyle dans l'os. We know to date that many solutions have been envisaged for the installation of artificial cups without the addition of acrylic cements, in particular the use of fixed cups with fixing screws or whose outside has a thread as in document FR-A-2 395 011. The bone stresses linked to the screwing of the acetabulum can cause, when they are significant, a
Lysis of the bone adjacent to the metal, causing a gradual deterioration over time of the mechanical strength of the acetabulum in the bone.

Les solutions connues dans le milieu chirurgical ont plusieurs inconvénients qui sont loin d'être négligeables pour La santé du patient. The solutions known in the surgical environment have several drawbacks which are far from negligible for the health of the patient.

Tout d'abord, il existe des difficuLtés de mise en position adéquate du cotyle artificiel dans l'os illiaque, cet inconvénient entrasse deux autres problèmes. First of all, there are difficulties in positioning the artificial acetabulum in the iliac bone adequately, this drawback is associated with two other problems.

L'un opératoire, du fait que l'on aura une anesthésie longue qui pourra causer des risques dans certains cas pour le patient. One operative, because we will have a long anesthesia which may cause risks in some cases for the patient.

L'autre post-opératoire par l'apparition d'un traumatisme osseux dO aux contraintes que lsos illiaque doit supporter au moment de la fixation du cotyle artificiel. The other postoperative by the appearance of a bone trauma due to the constraints that the iliac ileum must bear at the time of fixation of the artificial acetabulum.

Le but de l'invention est de remédier à ces inconvénients et de permettre la réalisation d'une. fixation solide et immédiate du cotyle artificiel à L'os illiaque; sans pour cela avoir à développer des efforts importants qui sont une gêne pour la mise en place et pour le bon positionnement dudit cotyle artificiel. The object of the invention is to remedy these drawbacks and to allow the realization of a. solid and immediate fixation of the artificial acetabulum to the illiac bone; without having to develop significant efforts which are a hindrance for the establishment and for the correct positioning of said artificial cup.

Le cotyle artificiel suivant l'invention est caractérisé en ce qu'il comprend une calotte hémisphérique creuse dont La paroi extérieure est pourvue d'une part dans sa région polaire, de trois pointes orientees parallèlement au rayon polaire de la calotte et d'autre part, dans sa zone intermédiaire perforations dans lesquelles s'engagent à force des fiches qui sont orientées dans une direction différente de celle des pointes, tandis que l'intérieur de cette calotte comprend un tronc de cane dans lequel vient se coincer un tronc de cône complémentaire ménagé à la périphérie de la garniture statique qui comporte une collerette munie de moyens de maintenir ladite garniture dans une position angulaire donnée. The artificial cup according to the invention is characterized in that it comprises a hollow hemispherical cap whose external wall is provided on the one hand in its polar region, with three points oriented parallel to the polar radius of the cap and on the other hand , in its intermediate perforation zone in which cards are forced into place which are oriented in a direction different from that of the points, while the inside of this cap comprises a cane trunk in which a complementary cone trunk is wedged formed at the periphery of the static lining which comprises a collar provided with means for maintaining said lining in a given angular position.

Les fiches telles que définies ci-dessus constituent une retenue dans tous les plans et directions de l'espace, ce qui n'est pas le cas des moddèles existants ayant des pointes fixes orientées dans une seule direction. Bien entendu, le cotyle suivant l'invention pourrait, dans des cas particuliers, être mis en place avec adjonction de ciment, bien que cette opération ne soit normalement pas nécessaire. The files as defined above constitute a restraint in all the planes and directions of space, which is not the case of existing models having fixed points oriented in one direction. Of course, the acetabulum according to the invention could, in special cases, be put in place with the addition of cement, although this operation is not normally necessary.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et Les avantages qu'elle est susceptible de procurer :
Fig. 1 est une vue éclatée en perspective des éléments composant le cotyle artificiel suivant L'invention.The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
Fig. 1 is an exploded perspective view of the elements making up the artificial cup according to the invention.

Fig. 2 est une vue extérieure axiale de la calotte hémisphérique. Fig. 2 is an axial external view of the hemispherical cap.

Fig. 3 représente en coupe le cotyle suivant l'invention après sa mise en place dans l'os illiaque du patient. Fig. 3 shows in section the acetabulum according to the invention after it has been placed in the iliac bone of the patient.

Fig. 4 et 5 illustrent à grande échelle La mise en place et Le retrait d'une fiche. Fig. 4 and 5 illustrate on a large scale the installation and removal of a plug.

On a illustré en fig. 1 un cotyle artificiel suivant l'invention comprenant une calotte hémisphérique creuse 1 et une garniture plastique 2 usuelle propre à recevoir la boule 3a d'une prothèse 3 associée au fémur d'un patient. Illustrated in fig. 1 an artificial acetabulum according to the invention comprising a hollow hemispherical cap 1 and a usual plastic lining 2 suitable for receiving the ball 3a of a prosthesis 3 associated with the femur of a patient.

La surface extérieure de la calotte 1 présente un aspect en forme de moletage pour permettre une repousse de l'os récepteur qui assurera la fixation secondaire biologique de l'implant. The outer surface of the cap 1 has an appearance in the form of knurling to allow regrowth of the receiving bone which will ensure the secondary biological fixation of the implant.

La calotte 1 comprend trois pointes 4 fixes de faible hauteur, positionnées suivant l'axe de mise en place de ladite calotte et sur une circonférence proche du polie. Les pointes 4 permettent un centrage et un positionnement immédiat de la calotte 1 dans la partie creusée de l'os iLliaque. Essentiellement dans sa zone intermédiaire, la calotte 1 est pourvue de deux séries de trous 5 décalées entre la base et les pointes 4, les trous 5 d'une série étant aussi décalés à 450 par rapport à ceux de L'autre série. The cap 1 comprises three fixed spikes 4 of low height, positioned along the axis of implementation of said cap and on a circumference close to the polished. The points 4 allow immediate centering and positioning of the cap 1 in the hollowed-out part of the iliac bone. Essentially in its intermediate zone, the cap 1 is provided with two series of holes 5 offset between the base and the tips 4, the holes 5 in one series also being offset at 450 relative to those of the other series.

Les trous 5 sont percés normalement à la face extérieure de la calotte 1 et dans chacun d'eux s'engage à force une fiche 6 pointue et de longueur adaptée à l'épaisseur de l'os et au cas chirurgical. De plus, au pale de la calotte 1, on a ménagé un trou taraudé 7 disposé entre les trois pointes 4 et permettant l'extraction eventuelle en cours d'opération de la calotte 1 de la partie creuse. The holes 5 are drilled normally on the outer face of the cap 1 and in each of them engages by force a pointed plug 6 and of length adapted to the thickness of the bone and to the surgical case. In addition, to the blade of the cap 1, a tapped hole 7 has been provided disposed between the three points 4 and allowing the possible extraction during operation of the cap 1 from the hollow part.

La base de la calotte 1 est munie d'ergots 8 de positionnement angulaire de la garniture plastique 2 régulièrement répartis sur la circonférence de ladite base. The base of the cap 1 is provided with lugs 8 for angular positioning of the plastic lining 2 regularly distributed over the circumference of said base.

Dans la partie intérieure de la calotte 1, on a réalisé un tronc de cône la dans lequel vient s'emboiter un tronc de cône 2a complémentaire appartenant å L'élément plastique 2. L'angle de pente des deux canes étant de L'ordre de 50, on obtient un assemblage dit en cône morse ou de coincement. In the inner part of the cap 1, a truncated cone 1a has been produced in which a complementary truncated cone 2a belonging to the plastic element 2 fits. The angle of slope of the two canes being of the order 50, we obtain a so-called Morse taper or wedging assembly.

La garniture plastique 2 comprend une collerette Zb munie de crans qui servent à maintenir en rotation Ladite garniture 2 par rapport à La calotte t du cotyle artificieL par L'intermédiaire des ergots 8. Le grand nombre de crans permet au chirurgien de positionner facilement et rapidement la garniture plastique 2 dans la calotte 1. The plastic lining 2 comprises a collar Zb provided with notches which serve to keep the said lining 2 in rotation relative to the cap t of the artificial cup via the lugs 8. The large number of notches allows the surgeon to position easily and quickly the plastic trim 2 in the cap 1.

La garniture plastique 2 a une fonction de frottement et de retenue pour la tête fémorale de la prothèse et elle permet d'éviter tout contact métallique entre celle-ci et La caLotte 1. The plastic lining 2 has a friction and retaining function for the femoral head of the prosthesis and it makes it possible to avoid any metallic contact between the latter and the shell 1.

Comme illustré en fig. 3, on a une vue d'ensemble du positionnement de la prothèse placée sur un patient. On aperçoit La position divergente des deux séries de fiches 6 qui sera détaiLlée plus loin et qui correspondent aux deux séries de trous 5. As illustrated in fig. 3, there is an overview of the positioning of the prosthesis placed on a patient. We can see the divergent position of the two series of plugs 6 which will be detailed later and which correspond to the two series of holes 5.

C'est ainsi qu'en fig. 4 et 5, on a illustré Le montage et le démontage des fiches 6 qui comprennent à L'extérieur une zone moletée 6b qui coopère avec la paroi des trous correspondant de La calotte 1 afin de permettre un assujettissement desdites fiches et une immobilisation immédiate et de façon rigide de La calotte 1 avec L'os récepteur 9. Thus in fig. 4 and 5, illustrated The mounting and dismounting of the plugs 6 which comprise on the outside a knurled zone 6b which cooperates with the wall of the corresponding holes of the cap 1 so as to allow the said plugs to be secured and immediate immobilization and rigid way of the cap 1 with the receiving bone 9.

Dans la partie interne de la fiche 6, on perce un alésage 6a taraudé sur une partie de la longueur et permettant le montage et Le démontage de ladite fiche au moyen d'outiLs appropriés. In the internal part of the plug 6, a threaded bore 6a is drilled over a part of the length and allowing the mounting and dismounting of the said plug by means of appropriate tools.

Au moment du montage, on introduit à l'intérieur de l'aLésage 6a un poussoir 10 dont l'extrémité vient buter contre le fond de l'alésage 6a et à L'aide d'un marteau, on impacte la fiche 6 dans La caLotte 1 et dans L'os illiaque 9. Le poussoir 10 présente une forme particulière suivant Les fiches 6 à enfoncer étant donné Les deux orientations différentes qu'elles peuvent avoir par rapport à L'axe de La calotte suivant qu'elles appartiennent à L'une ou l'autre des deux séries. Bien entendu, Les orientations considérées sont différentes de ceLLe des pointes 4. At the time of assembly, a pusher 10 is inserted inside the bore 6a, the end of which abuts against the bottom of the bore 6a and, using a hammer, the plug 6 is impacted in the cap 1 and in the illiac bone 9. The pusher 10 has a particular shape according to the cards 6 to be inserted given the two different orientations that they can have with respect to the axis of the cap depending on whether they belong to L either of the two series. Of course, the orientations considered are different from that of points 4.

Au moment du démontage, s'il doit avoir lieu, on utilise un appareil adapté Il comprenant une extrémité filetée venant se visser dans La partie taraudée 6c afin de pouvoir extraire la fiche 6 de La calotte 1 et de l'os récepteur 9 par simple traction. At the time of disassembly, if it has to take place, an adapted device is used It comprising a threaded end coming to be screwed in The tapped part 6c in order to be able to extract the plug 6 from the cap 1 and from the receiving bone 9 traction.

Les fiches 6 doivent impérativement être assujetties rigidement à La caLotte 1, car si cette dernière présentait La moindre mobilité par rap port aux fiches fixées solidement dans l'os 9, il risquerait de se produire une usure des parties métalliques entraînant La formation de déchet, ce qui provoquerait une "métalose".  The sheets 6 must imperatively be rigidly secured to the shell 1, because if the latter exhibited the least mobility in relation to the sheets fixed firmly in the bone 9, there would be a risk of wear of the metal parts resulting in the formation of waste, which would cause "metalosis".

il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement Le domaine de l'invention dont on ne sortirait pas en remplaçant Les détaiLs d'exécution décrits par tous autres équivalents.  it should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the details of execution described by all other equivalents.

Claims (8)

R E V E N D I C A T I O N S REVENDICATIONSR E V E N D I C A T I O N S CLAIMS 1. Cotyle artificiel pour La réception de La boule d'une prothèse de rotule fémorale du genre comprenant une coque métaLlique.assujettie à L'os illiaque et une garniture en matière plastique associée à la partie intérieure de Ladite coque pour recevoir La bouLe de la prothèse, caractérisé en ce que la coque est prévue sous La forme d'une calotte h*- misphérique (1) creuse dont la paroi extérieure est pourvue d'une part dans sa région polaire de trois pointes (4) orientées parallèlement au rayon polaire de La calotte (1) et d'autre part dans sa zone intermédi- aire de perforations (5) dans Lesquelles s'engagent à force des fiches (6) qui sont orientées dans une direction différente de ceLLe des pointes (4), tandis que l'intérieur de cette calotte (1) comprend un tronc de cône (la) dans lequel vient se coincer un tronc de cane (2a) complémentaire ménagé à la périphérie de la garniture pLastique (2) qui comporte une collerette (2b) munie de moyen de maintenir Ladite garniture t2) dans une position angulaire donnée. 1. Artificial acetabulum for the reception of the ball of a femoral patella prosthesis of the kind comprising a metal shell. Subject to the illiac bone and a plastic lining associated with the inner part of said shell to receive the ball of the prosthesis, characterized in that the shell is provided in the form of a hollow cap h * - spherical (1) whose external wall is provided on the one hand in its polar region with three points (4) oriented parallel to the polar radius of the cap (1) and on the other hand in its intermediate zone of perforations (5) in which they engage by force of the cards (6) which are oriented in a direction different from that of the points (4), while that the interior of this cap (1) comprises a truncated cone (la) in which is wedged a complementary cane trunk (2a) formed at the periphery of the plastic lining (2) which comprises a flange (2b) provided way to maintain Said packing t2) in a given angular position. 2. Cotyle suivant la revendication 1, caractérise en ce que 2. Cotyle according to claim 1, characterized in that L'orientation des fiches (6) est normale à La face extérieure de La caLotte sphérique.The orientation of the plugs (6) is normal to the outer face of the spherical cap. 3. Cotyle suivant La revendication 1, caractérisé en ce que chaque fiche (6) comporte une zone moletée coopérant avec la paroi du trou correspondant de la caLotte (1). 3. Cup according to claim 1, characterized in that each plug (6) has a knurled zone cooperating with the wall of the corresponding hole of the cap (1). 4. Cotyle suivant la revendication 1, caractérisé en ce que chaque fiche (6) comporte un alésage fileté (6a, 6c) permettant de retirer La fiche une fois qu'elle a été mise en place dans sa perforation. 4. Cup according to claim 1, characterized in that each plug (6) has a threaded bore (6a, 6c) making it possible to remove the plug once it has been placed in its perforation. 5. Cotyle suivant la revendication 1, caractérisé en ce que Le pôLe de la calotte (9) comporte un trou taraudé (7). 5. Cup according to claim 1, characterized in that the pole of the cap (9) has a threaded hole (7). 6. Cotyle suivant La revendication 1, caractérisé en ce que La longueur des fiches (6) est variable. 6. Cup according to claim 1, characterized in that the length of the plugs (6) is variable. 7. Cotyle suivant La revendication 1, caractérisé en ce que La base de la calotte (1) comporte plusieurs ergots (8). 7. A cup according to claim 1, characterized in that the base of the cap (1) comprises several lugs (8). 8. Cotyle suivant la revendication 7, caractérisé en ce que La colLerette (2b) de la garniture plastique (2) est pourvue d'encoches propres à coopérer avec les ergots (8) de La calotte (1) en vue d'immobiliser ces deux éléments dans une orientation angulaire donnée.  8. Cup according to claim 7, characterized in that the collar (2b) of the plastic lining (2) is provided with notches capable of cooperating with the pins (8) of the cap (1) in order to immobilize these two elements in a given angular orientation.
FR8815073A 1988-11-14 1988-11-14 ARTIFICIAL COTYLES WITH ERGOTS FOR TOTAL HIP PROSTHESIS Expired - Lifetime FR2638963B1 (en)

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EP0499475A2 (en) * 1991-02-14 1992-08-19 SMITH & NEPHEW RICHARDS, INC. Acetabular prosthesis with anchoring pegs
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EP0680735A2 (en) * 1993-03-18 1995-11-08 Industrias Quirurgicas De Levante Modular cup
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US5571198A (en) * 1994-01-21 1996-11-05 David A. Drucker Acetabular shell with selectively available bone screw holds
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EP0771552A1 (en) * 1995-11-03 1997-05-07 Jacques Etienne Léopold Dr. Negre Cup without thread for cementless implantation and associated acetabular cup prosthesis
WO1997042913A1 (en) * 1996-05-14 1997-11-20 Bruno Balay Cotyloidal implant fixed without cement
FR2748654A1 (en) * 1996-05-14 1997-11-21 Setiey Louis Cotyloid implant cup
FR2748655A1 (en) * 1996-05-14 1997-11-21 Setiey Louis Cotyloid implant cup
US5702475A (en) * 1994-10-04 1997-12-30 Zahedi; Amir Modular bone implant with pan and pins
ES2114485A1 (en) * 1996-03-29 1998-05-16 Traiber S A Artificial bone cavity for bony joints (articulations)
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WO2000019945A1 (en) * 1998-10-07 2000-04-13 Parc Innovation Implant designed to be fixed to a bone
FR2840802A1 (en) * 2002-06-13 2003-12-19 Philippe Hernigou Cotyloid implant for hip prosthesis comprises cupule delimiting smooth and polished cavity with couplings able to engage fixed core complementary couplings, core open end having support flange connected to fixed core cavity
EP1982675A1 (en) * 2005-10-19 2008-10-22 Implant reduction Cup for cotyloidal implant.
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CN102525690A (en) * 2012-01-13 2012-07-04 南方医科大学 Improved artificial femoral stem and nail implanting guide frame thereof
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US20170119532A1 (en) * 2009-12-21 2017-05-04 Derek James Wallace McMinn Cup with conical permanent pegs
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EP0490616A1 (en) * 1990-12-10 1992-06-17 JOHNSON & JOHNSON ORTHOPAEDICS, INC. Anti-displacement device for prosthetic bone joints
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