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FR2793137A1 - Cotyloid implant for total hip prosthesis incorporates metal adapter between cup and insert - Google Patents

Cotyloid implant for total hip prosthesis incorporates metal adapter between cup and insert Download PDF

Info

Publication number
FR2793137A1
FR2793137A1 FR9906037A FR9906037A FR2793137A1 FR 2793137 A1 FR2793137 A1 FR 2793137A1 FR 9906037 A FR9906037 A FR 9906037A FR 9906037 A FR9906037 A FR 9906037A FR 2793137 A1 FR2793137 A1 FR 2793137A1
Authority
FR
France
Prior art keywords
shell
cone
cup
metal
insert
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
FR9906037A
Other languages
French (fr)
Other versions
FR2793137B1 (en
Inventor
Pierre Bar
Jean Louis Chatelan
Philippe Deroche
Michel Henry Fessy
Pascal Gleyze
Alain Pailles
Jean Claude Panisset
Bertrand Roumazeille
Jacques Tabutin
Alain Tornier
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 FR9906037A priority Critical patent/FR2793137B1/en
Publication of FR2793137A1 publication Critical patent/FR2793137A1/en
Application granted granted Critical
Publication of FR2793137B1 publication Critical patent/FR2793137B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/32Joints for the hip
    • A61F2/34Acetabular cups
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86Pins or screws or threaded wires; nuts therefor
    • AHUMAN NECESSITIES
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/28Bones
    • A61F2002/2835Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
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    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30329Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331Connections 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
    • A61F2002/30332Conically- or frustoconically-shaped protrusion and recess
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    • A61F2002/30331Connections 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
    • A61F2002/30332Conically- or frustoconically-shaped protrusion and recess
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    • A61F2002/30362Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit with possibility of relative movement between the protrusion and the recess
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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
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    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
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    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The 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
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
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    • A61F2/00Filters 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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    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30593Special structural features of bone or joint prostheses not otherwise provided for hollow
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    • A61F2/00Filters 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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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00017Iron- or Fe-based alloys, e.g. stainless steel
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00023Titanium or titanium-based alloys, e.g. Ti-Ni alloys

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

The implant, comprising a metal cup (2) and a plastic insert (5), incorporates an adapter (4) in the form of a metal shell (12) which is fixed in the cup and receives the insert, allowing it to move relative to the shell. The metal shell has an outer surface (14) with a conical portion (15) having a small angle of taper, and a collar (17) forming a rim. The conical portion (15) engages with a similar conical surface (9) inside the cup. The cup and shell also have conical portions (10, 16) with greater angles of taper, with the conical portion of the cup having holes (7) for fixings (6).

Description

IMPLANT COTYLOIDIEN ET SON DISPOSITIF
D'ADAPTATION
La présente invention est relative à un implant cotyloidien pour prothèse totale de la hanche et son dispositif d'adaptation permettant la mise en place de l'insert recevant la tte de l'élément fémoral.
COTYLOIDIAN IMPLANT AND ITS DEVICE
ADAPTATION
The present invention relates to an acetabular implant for total hip prosthesis and its adaptation device allowing the insertion of the insert receiving the head of the femoral element.

On connaît des implants cotyloïdiens qui comportent une pièce métallique ou cotyle dans lequel est retenu un insert en polyéthylène.Cotyloid implants are known which comprise a metallic part or acetabulum in which a polyethylene insert is retained.

Ce dernier comprend une cavité interne destinée à recevoir la tte sphérique de l'implant fémoral lors de la réalisation d'une prothèse totale de la hanche.The latter includes an internal cavity intended to receive the spherical head of the femoral implant during the production of a total hip prosthesis.

Ces inserts sont destinés à tre fixes dans l'implant cotyloïdien, et de ce fait ne peuvent pas autoriser de double rotation au niveau de l'articulation de la hanche, c'est à dire une rotation tte fémorale/insert et une seconde rotation insert/implant cotyloïdien.These inserts are intended to be fixed in the acetabular implant, and therefore cannot allow a double rotation at the hip joint, ie a rotation of the femoral head / insert and a second rotation of the insert / acetabular implant.

II existe diverses solutions pour la fixation de l'insert à l'intérieur du cotyle métallique, soit par coincement, soit par une bague rapportée. There are various solutions for fixing the insert inside the metal cup, either by wedging, or by an attached ring.

On connaît également d'après le brevet FR 76 25215, une prothèse de la hanche permettant un libre pivotement de l'insert en polyéthylène à l'intérieur du cotyle métallique.Also known from patent FR 76 25215 is a hip prosthesis allowing free rotation of the polyethylene insert inside the metal cup.

Ce dispositif impose une surface lisse à l'intérieur de l'élément métallique de l'implant cotyloïdien, qui ne peut de ce fait pas recevoir de vis complémentaires de fixation.This device imposes a smooth surface inside the metallic element of the acetabular implant, which cannot therefore receive additional fixing screws.

D'autre part, il est impossible de fixer un insert fixe dans un élément métallique d'un implant cotyloïdien prévu pour recevoir un insert mobile.On the other hand, it is impossible to fix a fixed insert in a metal element of an acetabular implant intended to receive a mobile insert.

L'implant cotyloïdien selon la présente invention a pour objet de remédier à ces inconvénients en permettant la pose dans le mme élément métallique d'un insert fixe, ou d'un insert mobile.The purpose of the acetabular implant according to the present invention is to remedy these drawbacks by allowing a fixed insert, or a movable insert, to be placed in the same metal element.

L'implant cotyloldien comportant un élément métallique et un insert pour prothèse de hanche, comprend un dispositif d'adaptation constitué d'une coque métallique qui vient se fixer dans l'élément métallique afin de recevoir l'insert de manière que ce dernier puisse, d'une part pivoter librement à l'intérieur d'une cavité interne de la coque, et d'autre part se déplacer en translation par rapport à ladite coque solidaire de l'élément métallique. The acetabular implant comprising a metallic element and an insert for hip prosthesis, comprises an adaptation device constituted by a metallic shell which is fixed in the metallic element in order to receive the insert so that the latter can, on the one hand pivot freely inside an internal cavity of the shell, and on the other hand move in translation relative to said shell secured to the metal element.

L'implant cotyloidien comprend une coque métallique qui comporte un profil externe pourvu d'une portion de cône à faible conicité.The acetabular implant comprises a metal shell which has an external profile provided with a portion of cone with low conicity.

L'implant cotyloidien comprend une coque métallique qui présente dans une direction sensiblement perpendiculaire à la portion de cône une collerette formant rebord.The acetabular implant comprises a metal shell which has, in a direction substantially perpendicular to the cone portion, a flange forming a rim.

L'implant cotyloidien comprend une coque métallique pourvue d'une cavité interne qui présente un profil en portion de sphère destiné à recevoir celui externe de l'insert.The acetabular implant comprises a metal shell provided with an internal cavity which has a profile in portion of sphere intended to receive that external of the insert.

L'implant cotyioïdien comprend un élément métallique qui est constitué d'un cotyle comportant une cavité interne délimitée du côté de son bord périphérique par une portion de cône de faible conicité.The cotyioid implant comprises a metallic element which consists of a acetabulum comprising an internal cavity delimited on the side of its peripheral edge by a portion of cone of low conicity.

L'implant cotyloïdien comprend un cotyle qui comporte dans le prolongement de sa portion de cône à faible conicité une seconde portion de cône à forte conicité qui est percée de trous pour le passage de vis de fixation.The acetabular implant comprises a acetabulum which comprises, in the extension of its portion of cone with low taper, a second portion of cone with high taper which is pierced with holes for the passage of fixing screws.

L'implant cotyioïdien comprend une coque métallique pourvue d'une portion de cône à faible conicité qui coopère avec celle de la cavité interne du cotyle pour bloquer ladite coque dans ledit cotyle.The cotyioid implant comprises a metal shell provided with a portion of cone of low conicity which cooperates with that of the internal cavity of the acetabulum to block said shell in said acetabulum.

L'implant cotyloïdien comprend un élément métallique qui est constitué d'un cotyle comportant une cavité interne délimitée du côté de son bord périphérique par une portion de cône de faible conicité et du côté de son pôle par une large ouverture permettant le travail chirurgical au fond du cotyle osseux après la fixation dudit cotyle dans l'os. The acetabular implant comprises a metallic element which consists of an acetabulum comprising an internal cavity delimited on the side of its peripheral edge by a portion of cone of low conicity and on the side of its pole by a wide opening allowing surgical work at the bottom of the acetabulum after fixation of the acetabulum in the bone.

L'implant cotyloidien comprend un élément métallique qui est constitué d'un anneau de soutien comportant une jupe annulaire solidaire d'une patte de fixation et d'un crochet.The acetabular implant comprises a metal element which consists of a support ring comprising an annular skirt secured to a fixing lug and a hook.

L'implant cotyioïdien comprend un anneau de soutien dont la jupe annulaire comporte une surface interne qui présente une portion de cône à faible conicité.The cotyioid implant comprises a support ring, the annular skirt of which has an internal surface which has a portion of cone with a low taper.

L'implant cot, vioïdien comprend une coque métallique dont la portion de cône à faible conicité coopère avec celle de la jupe annulaire pour bloquer ladite coque dans l'anneau de soutien.The cot, vioid implant comprises a metal shell, the cone portion of which has a low taper cooperates with that of the annular skirt to block said shell in the support ring.

L'implant cotyloïdien comprend un anneau de soutien dont la patte est percée de trous pour le passage de vis de fixation.The acetabular implant includes a support ring, the tab of which is pierced with holes for the passage of fixing screws.

Le dispositif d'adaptation pour implant cotyloïdien, comprend une coque métallique qui vient se fixer dans un élément métallique de l'implant afin de recevoir un insert de manière que ce dernier puisse, d'une part pivoter librement à !'intérieur d'une cavité interne de la coque, et d'autre part se déplacer en translation par rapport à ladite coque solidaire de l'élément métallique. The adapter device for acetabular implant, comprises a metal shell which is fixed in a metal element of the implant in order to receive an insert so that the latter can, on the one hand freely pivot inside! internal cavity of the shell, and on the other hand move in translation relative to said shell secured to the metal element.

Le dispositif d'adaptation comprend une coque métallique qui présente un profil externe de forme complémentaire à celui interne de l'élément métallique pour la retenue de ladite coque.The adaptation device comprises a metal shell which has an external profile of shape complementary to that internal to the metal element for retaining said shell.

Le dispositif d'adaptation comprend une coque métallique qui comporte une collerette formant rebord.The adaptation device comprises a metal shell which includes a flange forming a rim.

Le dispositif d'adaptation comprend un élément métallique qui est constitué d'un cotyle comportant une cavité interne délimitée du côté de son bord périphérique par une portion de cône de faible conicité.The adaptation device comprises a metallic element which consists of a cup having an internal cavity delimited on the side of its peripheral edge by a portion of cone of low conicity.

Le dispositif d'adaptation comprend un élément métallique qui est constitué d'un cotyle comportant une cavité interne délimitée du côté de son bord périphérique par une portion de cône de faible conicité et du côté de son pôle par une large ouverture permettant le travail chirurgical au fond du cotyle osseux après la fixation dudit cotyle dans l'os.The adaptation device comprises a metallic element which consists of a acetabulum comprising an internal cavity delimited on the side of its peripheral edge by a portion of cone of low conicity and on the side of its pole by a wide opening allowing surgical work to be carried out. bottom of the acetabulum after fixation of the acetabulum in the bone.

Le dispositif d'adaptation comprend un élément métallique qui est constitué d'un anneau de soutien comportant une jupe annulaire solidaire d'une patte de fixation et d'un crochet.The adaptation device comprises a metal element which consists of a support ring comprising an annular skirt secured to a fixing lug and a hook.

Le dispositif d'adaptation comprend une jupe annulaire qui comporte une surface interne présentant une portion de cône à faible conicité.The adaptation device comprises an annular skirt which has an internal surface having a portion of cone with low conicity.

La description qui va suivre en regard des dessins annexés, donnés à titre d'exemple non limitatif, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :
Figure 1 est une vue en coupe illustrant l'implant cotyloïdien et son dispositif d'adaptation suivant l'invention avant assemblage.
The description which follows with reference to the appended drawings, given by way of nonlimiting example, will make it possible to better understand the invention, the characteristics which it presents and the advantages which it is capable of providing:
Figure 1 is a sectional view illustrating the acetabular implant and its adaptation device according to the invention before assembly.

Figure 2 est une vue en coupe montrant l'implant cotyloidien en position assemblée.Figure 2 is a sectional view showing the acetabular implant in the assembled position.

Figure 3 est une vue en coupe représentant une première variante de l'implant cotyloïdien suivant la présente invention.Figure 3 is a sectional view showing a first variant of the acetabular implant according to the present invention.

Figure 4 est une vue en coupe montrant une seconde variante dont le dispositif d'adaptation est utilisé avec un anneau de soutien.Figure 4 is a sectional view showing a second variant of which the adaptation device is used with a support ring.

On a montré en figure 1 un implant cotyloidien 1 comportant un élément métallique constitué d'un cotyle 2 pourvu d'une cavité interne 3 dans laquelle vient se fixer un dispositif d'adaptation 4 destiné à recevoir un insert 5 en matière plastique. FIG. 1 shows an acetabular implant 1 comprising a metallic element consisting of an acetabulum 2 provided with an internal cavity 3 in which is fixed an adaptation device 4 intended to receive an insert 5 made of plastic material.

Le cotyle métallique 2 présente un profil extérieur hémisphérique destiné à venir se fixer dans la cavité acétabulaire de l'os par l'intermédiaire de vis 6 qui coopèrent avec des trous 7 ménagés dans l'épaisseur du cotyle 2.The metal cup 2 has a hemispherical external profile intended to be fixed in the acetabular cavity of the bone by means of screws 6 which cooperate with holes 7 made in the thickness of cup 2.

Le cotyle métallique 2 peut tre réalisé en acier inoxydable ou en alliage de titane allié ou en tout autre matériau biocompatible.The metal cup 2 can be made of stainless steel or an alloy of titanium alloy or any other biocompatible material.

Le cotyle métallique 2 comporte un bord périphérique 8 délimitant t'entrée de la cavité interne 3. Cette dernière présente, par exemple, du côté de son bord périphérique 8, une première portion de cône à faible conicité 9.The metal cup 2 has a peripheral edge 8 delimiting the entry of the internal cavity 3. The latter has, for example, on the side of its peripheral edge 8, a first portion of cone with low conicity 9.

La première portion de cône 9 peut, mais de manière non obligatoire et sans pour autant modifier l'objet de l'invention, se prolonger par une autre portion à profil conique 10 de forte conicité. Cette dernière est généralement percée des trous 7 prévus pour recevoir les vis de fixation 6.The first cone portion 9 may, but not necessarily and without thereby modifying the object of the invention, be extended by another portion with a conical profile 10 of high conicity. The latter is generally pierced with holes 7 provided for receiving the fixing screws 6.

Chaque trou 7 comporte un logement 11 dont le profil en portion de sphère permet de régler la position angulaire de I'axe de la vis de fixation 6 correspondante, et de recevoir le profil externe de sa tte pour que cette dernière soit la plus éloignée possible de la cavité interne 3 pour ne pas venir en contact avec le dispositif d'adaptation 4.Each hole 7 has a housing 11 whose profile in portion of a sphere makes it possible to adjust the angular position of the axis of the corresponding fixing screw 6, and to receive the external profile of its head so that the latter is as distant as possible. of the internal cavity 3 so as not to come into contact with the adaptation device 4.

Le dispositif d'adaptation 4 est constitué d'un coque métallique 12 qui vient se fixer dans la cavité interne 3 des cotyles 2. La coque métallique 12 comporte une cavité interne 13 destinée à recevoir l'insert en matière plastique 5, tandis que le profil externe 14 de ladite coque est complémentaire à celui de la cavité interne 3 du cotyle.The adaptation device 4 consists of a metal shell 12 which is fixed in the internal cavity 3 of the acetabulum 2. The metal shell 12 has an internal cavity 13 intended to receive the plastic insert 5, while the external profile 14 of said shell is complementary to that of the internal cavity 3 of the acetabulum.

On note que le dispositif d'adaptation 4 formé de sa coque 12 permet à l'insert 5 de pouvoir, d'une part pivoter librement à l'intérieur de la cavité interne 13 de ladite coque, et d'autre part de se déplacer en translation par rapport à ladite coque.It will be noted that the adaptation device 4 formed from its shell 12 allows the insert 5 to be able, on the one hand to pivot freely inside the internal cavity 13 of said shell, and on the other hand to move in translation relative to said shell.

La coque métallique 12 comporte sur son profil externe 14, une portion de cône à faible conicité 15 qui coopère avec celle 9 de la cavité interne 3 du cotyle métallique 2 pour coincer ou bloquer ladite coque dans ledit cotyle.The metal shell 12 has on its external profile 14, a portion of cone with low conicity 15 which cooperates with that 9 of the internal cavity 3 of the metal cup 2 to wedge or block said shell in said cup.

La portion de cône 15 peut, mais de manière non obligatoire, se prolonger par une autre portion de cône à forte conicité 16, semblable à celle 10 de la cavité interne 3 du cotyle 2.The portion of cone 15 may, but not necessarily, be extended by another portion of cone with a high conicity 16, similar to that 10 of the internal cavity 3 of the acetabulum 2.

La coque métallique 12 présente dans une direction sensiblement perpendiculaire à la portion de cône 15, une collerette 17 formant rebord qui vient au-dessus du bord périphérique 8 du cotyle 2.The metal shell 12 has, in a direction substantially perpendicular to the cone portion 15, a flange 17 forming a rim which comes above the peripheral edge 8 of the cup 2.

On note, lorsque la coque métallique 12 du dispositif d'adaptation 4 est fixée à l'intérieur du cotyle 2, que seule la portion de cône 15 du profil externe 14 est en contact avec celle 9 de la cavité interne 3, afin que la retenue de ladite coque soit parfaite. It is noted, when the metal shell 12 of the adaptation device 4 is fixed inside the acetabulum 2, that only the cone portion 15 of the external profile 14 is in contact with that 9 of the internal cavity 3, so that the retention of said shell is perfect.

En effet, un double appui du profil externe 14 avec la cavité interne 3 nuirait à la fixation de la coque métallique 12 à l'intérieur du cotyle 2.Indeed, a double support of the external profile 14 with the internal cavity 3 would harm the fixing of the metal shell 12 inside the cup 2.

La coque métallique 12 présente une cavité interne 13 à profil en portion de sphère destiné à recevoir l'insert en matière plastique 5, afin que ce dernier puisse pivoter librement dans toutes les directions.The metal shell 12 has an internal cavity 13 with a profile in portion of a sphere intended to receive the plastic insert 5, so that the latter can pivot freely in all directions.

De plus, on constate qu'il n'existe aucun moyen de retenue de l'insert 5 à l'intérieur de la cavité interne 13, ce qui permet audit insert de pouvoir se déplacer en translation par rapport à la coque 12 solidaire du cotyle 2.In addition, we see that there is no means of retaining the insert 5 inside the internal cavity 13, which allows said insert to be able to move in translation relative to the shell 12 secured to the acetabulum. 2.

On note que le profil externe sphérique de l'insert 5 présente des rayons de courbure qui sont complémentaires à ceux de la cavité interne 13 de la coque 12 pour que ledit insert puisse parfaitement pivoter.It is noted that the spherical external profile of the insert 5 has radii of curvature which are complementary to those of the internal cavity 13 of the shell 12 so that said insert can pivot perfectly.

Pour cela, la matière de l'insert 5 est généralement du polyéthylène, mais elle pourrait tre en toute autre matière ayant de faibles coefficients de frottement.For this, the material of the insert 5 is generally polyethylene, but it could be of any other material having low coefficients of friction.

L'insert en matière plastique 5 comporte une cavité interne 27 présentant un profil en portion de sphère destiné à recevoir la tte sphérique de l'élément fémoral (non représenté) de la prothèse totale de hanche.The plastic insert 5 has an internal cavity 27 having a sphere-shaped profile intended to receive the spherical head of the femoral element (not shown) of the total hip prosthesis.

En figure 2 on a montré une première variante de l'implant cotyloïdien 1 qui consiste plus particulièrement en ce que l'élément métallique constitué du cotyle 2 présente au niveau de son pote une large ouverture 18.In FIG. 2, a first variant of the acetabular implant 1 has been shown, which consists more particularly in that the metallic element consisting of the acetabulum 2 has a wide opening 18 at its bud.

En effet, la large ouverture 18 est délimitée dans la partie interne 3 du cotyle 2 par la portion de cône à forte conicité 10.Indeed, the wide opening 18 is delimited in the internal part 3 of the acetabulum 2 by the portion of cone with a high conicity 10.

Cette large ouverture 18 permet le travail chirurgical au fond du cotyle osseux après la fixation du cotyle métallique 2. Ce travail chirurgical peut, par exemple, consister à venir combler les espaces qui ne sont pas en contact avec le cotyle métallique 2 par des greffons osseux.This wide opening 18 allows the surgical work at the bottom of the acetabular cup after the fixation of the metallic acetabulum 2. This surgical work can, for example, consist of filling the spaces which are not in contact with the metallic acetabulum 2 by bone grafts .

Le cotyle 2 muni de sa large ouverture 18 est prévu pour recevoir, de la mme manière que décrit précédemment en figure 1, le dispositif d'adaptation 4 constitué de la coque métallique 12 dans laquelle se déplace librement l'insert en matière plastique 5.The cup 2 provided with its wide opening 18 is designed to receive, in the same manner as described previously in FIG. 1, the adaptation device 4 consisting of the metal shell 12 in which the plastic insert 5 moves freely.

En figure 3 on a représenté une seconde variante de l'implant cotyloïdien qui consiste en ce que l'élément métallique est constitué d'un anneau de soutien 19, plus particulièrement utilisé dans le cas des remaniements osseux importants.In Figure 3 there is shown a second variant of the acetabular implant which consists in that the metal element consists of a support ring 19, more particularly used in the case of significant bone changes.

L'anneau de soutien 19 comporte une jupe annulaire 20 solidaire d'une patte de fixation 21 percée de trous pour recevoir des vis 22 qui viennent s'insérer dans l'os autour du cotyle humain.The support ring 19 comprises an annular skirt 20 secured to a fixing lug 21 pierced with holes for receiving screws 22 which are inserted into the bone around the human acetabulum.

Egalement, la jupe annulaire 20 est solidaire à l'opposé de la patte 21, d'un crochet 23 destiné à tre retenu au niveau de t'échancrure ischiopubienne 24. Also, the annular skirt 20 is integral, opposite the tab 21, with a hook 23 intended to be retained at the level of the ischiopubic notch 24.

La jupe annulaire 20 comporte une surface interne qui présente une portion de cône de faible conicité 25 qui coopère avec celle 15 du profil externe 14 de la coque 12 du dispositif d'adaptation 4.The annular skirt 20 has an internal surface which has a portion of cone of small conicity 25 which cooperates with that of the external profile 14 of the shell 12 of the adaptation device 4.

La jupe 20 permet par l'intermédiaire de sa portion de cône 25 la fixation de la coque métallique 12 de manière que cette dernière ne vienne pas en contact avec le fond du cotyle osseux 26.The skirt 20 allows, through its cone portion 25, the fixing of the metal shell 12 so that the latter does not come into contact with the bottom of the bone cup 26.

On note que lorsque la coque métallique 12 du dispositif d'adaptation 4 est fixée à l'intérieur de la jupe 20 de l'anneau de soutien 19, que seule la portion de cône 15 du profil externe 14 est en contact avec celle 25, afin que la retenue de ladite coque soit parfaite.It is noted that when the metal shell 12 of the adaptation device 4 is fixed inside the skirt 20 of the support ring 19, that only the cone portion 15 of the external profile 14 is in contact with that 25, so that the retention of said shell is perfect.

De mme que précédemment, la coque métallique 12 reçoit dans sa cavité interne 13 à profil en portion de sphère, l'insert 5.As previously, the metal shell 12 receives in its internal cavity 13 with a profile in the form of a portion of a sphere, the insert 5.

On constate que la coque métallique 12 du dispositif d'adaptation 4 est totalement interchangeable avec un insert en polyéthylène fixe qui viendrait se loger directement dans l'élément métallique 2 par l'intermédiaire de sa surface conique 9.It can be seen that the metal shell 12 of the adaptation device 4 is completely interchangeable with a fixed polyethylene insert which would be housed directly in the metal element 2 via its conical surface 9.

On remarque que l'élément métallique constitué, soit du cotyle 2, soit de t'anneau de soutien 19, peut recevoir des vis 6,22, et tous les accessoires de fixation et de comblement décrits dans la demande de brevet FR 98 02795 appartenant au demandeur.Note that the metal element consisting of either the cup 2 or the support ring 19 can receive screws 6.22, and all the fixing and filling accessories described in patent application FR 98 02795 belonging to the applicant.

De plus, le dispositif d'adaptation 4 peut prévoir un profil extérieur 14 qui soit adapté en fonction de celui interne de l'élément métallique pour prévoir sa fixation.In addition, the adaptation device 4 can provide an external profile 14 which is adapted as a function of that internal of the metal element to provide for its fixing.

On peut prévoir tout autre moyen de fixation du dispositif d'adaptation 4 dans l'élément métallique que celui décrit précédemment, sans pour autant changer l'objet de l'invention.Any other means of fixing the adaptation device 4 can be provided in the metallic element than that described above, without, however, changing the object of the invention.

II doit d'ailleurs tre entendu que la description qui précède n'a été donnée qu'à titre d'exemple et quelle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tout autre équivalent. It should moreover be understood that the above description has been given only by way of example and which in no way limits the field of the invention from which one would not depart by replacing the execution details described by any other equivalent.

Claims (19)

ladite coque solidaire de l'élément métallique. said shell secured to the metal element. (13) de la coque (12), et d'autre part se déplacer en translation par à (13) of the hull (12), and on the other hand to move in translation by at dernier puisse, d'une part pivoter librement à l'intérieur d'une cavité interne the latter can, on the one hand pivot freely inside an internal cavity l'élément métallique (2,19) afin de recevoir l'insert (5) de manière que ce the metallic element (2.19) in order to receive the insert (5) so that it d'adaptation (4) constitué d'une coque métallique (12) qui vient se fixer dans adapter (4) consisting of a metal shell (12) which is fixed in pour prothèse de hanche, caractérisé en ce qu'il comprend un dispositif for hip prosthesis, characterized in that it comprises a device REVENDICATIONS 1. Implant cotyloïdien comportant un élément métallique (2,19) et un insert (5) CLAIMS 1. Cotyloid implant comprising a metallic element (2.19) and an insert (5) 2. Implant cotyloïdien suivant la revendication 1, caractérisé en ce que la coque2. acetabular implant according to claim 1, characterized in that the shell métallique (12) comporte un profil externe (14) pourvu d'une portion de cône à metal (12) has an external profile (14) provided with a portion of cone with faible conicité (15). weak taper (15). 3. Implant cotyloïdien suivant la revendication 2, caractérisé en ce que la coque3. acetabular implant according to claim 2, characterized in that the shell métallique (12) présente dans une direction sensiblement perpendiculaire à la metallic (12) present in a direction substantially perpendicular to the portion de cône (15) une collerette (17) formant rebord. portion of cone (15) a flange (17) forming a rim. 4. Implant cotyloidien suivant la revendication 1, caractérisé en ce que la cavité4. Cotyloid implant according to claim 1, characterized in that the cavity interne (13) de la coque métallique (12) présente un profil en portion de internal (13) of the metal shell (12) has a portion profile of sphère destiné à recevoir celui externe de l'insert (5). sphere intended to receive the external one of the insert (5). 5. Implant cotyloidien suivant la revendication 1, caractérisé en ce que5. acetabular implant according to claim 1, characterized in that l'élément métallique est constitué d'un cotyle (2) comportant une cavité the metal element consists of a cup (2) having a cavity interne (3) délimitée du côté de son bord périphérique (8) par une portion de internal (3) delimited on the side of its peripheral edge (8) by a portion of cône de faible conicité (9). cone of low conicity (9). 6. Implant cotyloidien suivant la revendication 5, caractérisé en ce que le cotyle6. acetabular implant according to claim 5, characterized in that the acetabulum (2) comporte dans le prolongement de sa portion de cône à faible conicité (9) (2) comprises in the extension of its portion of cone with low conicity (9) une seconde portion de cône à forte conicité (10) qui est percée de trous (7) a second portion of a cone with a high taper (10) which is pierced with holes (7) pour le passage de vis de fixation (6). for the passage of fixing screws (6). 7. Implant cotyloldien suivant les revendications 2 et 5, caractérisé en ce que la7. acetabular implant according to claims 2 and 5, characterized in that the portion de cône à faible conicité (15) de la coque métallique (12) coopère portion of cone with low taper (15) of the metal shell (12) cooperates avec celle (9) de la cavité interne (3) du cotyle (2) pour bloquer ladite coque with that (9) of the internal cavity (3) of the acetabulum (2) to block said shell dans ledit cotyle (2). in said cup (2). 8. Implant cotyloïdien suivant la revendication 1, caractérisé en ce que8. acetabular implant according to claim 1, characterized in that l'élément métallique est constitué d'un cotyle (2) comportant une cavité the metal element consists of a cup (2) having a cavity interne (3) délimitée du côté de son bord périphérique (8) par une portion de internal (3) delimited on the side of its peripheral edge (8) by a portion of cône de faible conicité (9) et du côté de son pote par une large ouverture (18) cone of low conicity (9) and on the side of his friend by a wide opening (18) permettant le travail chirurgical au fond du cotyle osseux (26) après la fixation allowing surgical work at the bottom of the bone cup (26) after fixation dudit cotyle dans l'os.  said cup in the bone. 9. Implant cotyloïdien suivant la revendication 1, caractérisé en ce que9. acetabular implant according to claim 1, characterized in that l'élément métallique est constitué d'un anneau de soutien (19) comportant the metal element consists of a support ring (19) comprising une jupe annulaire (20) solidaire d'une patte de fixation (21) et d'un crochet an annular skirt (20) integral with a fixing lug (21) and a hook (23). (23). 10. Implant cotyloïdien suivant la revendication 9, caractérisé en ce que la jupe10. acetabular implant according to claim 9, characterized in that the skirt annulaire (20) comporte une surface interne qui présente une portion de cône annular (20) has an internal surface which has a cone portion à faible conicité (25). low taper (25). 11. Implant cotyloidien suivant les revendications 2 et 9, caractérisé en ce que la11. acetabular implant according to claims 2 and 9, characterized in that the portion de cône à faible conicité (15) de la coque (12) coopère avec celle (25) portion of cone with low taper (15) of the shell (12) cooperates with that (25) de la jupe annulaire (20) pour bloquer ladite coque dans l'anneau de soutien of the annular skirt (20) to lock said shell in the support ring (19). (19). 12. Implant cotylofdien suivant la revendication 9, caractérisé en ce que la patte12. acetabular implant according to claim 9, characterized in that the tab (21) de l'anneau de soutien (19) est percée de trous pour le passage de vis de (21) of the support ring (19) is pierced with holes for the passage of fixation (22). fixing (22). 13. Dispositif d'adaptation pour implant cotyloïdien, caractérisé en ce qu'il13. Adaptation device for acetabular implant, characterized in that it comprend une coque métallique (12) qui vient se fixer dans un élément includes a metal shell (12) which is fixed in an element métallique (2,19) de l'implant (1) afin de recevoir un insert (5) de manière que metallic (2.19) of the implant (1) in order to receive an insert (5) so that ce dernier puisse, d'une part pivoter librement à l'intérieur d'une cavité interne the latter can, on the one hand pivot freely inside an internal cavity (13) de la coque (12), et d'autre part se déplacer en translation par rapport à (13) of the hull (12), and on the other hand move in translation relative to ladite coque solidaire de l'élément métallique (2,19), said shell secured to the metal element (2.19), 14. Dispositif d'adaptation suivant la revendication 13, caractérisé en ce que la14. An adaptation device according to claim 13, characterized in that the coque métallique (12) présente un profil externe (14) de forme metal shell (12) has an external profile (14) of form complémentaire à celui interne de l'élément métallique (2,19) pour la retenue complementary to that internal of the metallic element (2.19) for the retention de ladite coque. of said shell. 15. Dispositif d'adaptation suivant la revendication 13, caractérisé en ce que la15. An adaptation device according to claim 13, characterized in that the coque métallique (12) comporte une collerette (17) formant rebord. metal shell (12) has a flange (17) forming a rim. 16. Dispositif d'adaptation suivant la revendication 13, caractérisé en ce que16. An adaptation device according to claim 13, characterized in that l'élément métallique est constitué d'un cotyle (2) comportant une cavité the metal element consists of a cup (2) having a cavity interne (3) délimitée du côté de son bord périphérique (8) par une portion de internal (3) delimited on the side of its peripheral edge (8) by a portion of cône de faible conicité (9). cone of low conicity (9). 17. Dispositif d'adaptation suivant la revendication 13, caractérisé en ce que17. An adaptation device according to claim 13, characterized in that l'élément métallique est constitué d'un cotyle (2) comportant une cavité the metal element consists of a cup (2) having a cavity interne (3) délimitée du côté de son bord périphérique (8) par une portion de internal (3) delimited on the side of its peripheral edge (8) by a portion of cône de faible conicité (9) et du côté de son pile par une large ouverture (18) cone of low conicity (9) and on the side of its stack by a wide opening (18) permettant le travail chirurgical au fond du cotyle osseux (26) après la fixation allowing surgical work at the bottom of the bone cup (26) after fixation dudit cotyle dans l'os.  said cup in the bone. 18. Dispositif d'adaptation suivant la revendication 13, caractérisé en ce que18. An adaptation device according to claim 13, characterized in that l'élément métallique est constitué d'un anneau de soutien (19) comportant the metal element consists of a support ring (19) comprising une jupe annulaire (20) solidaire d'une patte de fixation (21) et d'un crochet an annular skirt (20) integral with a fixing lug (21) and a hook (23). (23). 19. Dispositif d'adaptation suivant la revendication 18, caractérisé en ce que la19. An adaptation device according to claim 18, characterized in that the jupe annulaire (20) comporte une surface interne qui présente une portion de annular skirt (20) has an internal surface which has a portion of cône à faible conicité (25).  low taper cone (25).
FR9906037A 1999-05-07 1999-05-07 COTYLOIDIAN IMPLANT AND ITS ADAPTATION DEVICE Expired - Fee Related FR2793137B1 (en)

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Cited By (12)

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FR2827154A1 (en) * 2001-07-16 2003-01-17 Jean Yves Lazennec Cotyloid implant for hip prosthesis comprises metal cup with two separate inserts
FR2827503A1 (en) * 2001-07-23 2003-01-24 Macara Frederique Modular reconstruction assembly for hip joint prosthesis has acetabular cavity support plate fixed with pile screws, spacer and metal cup
FR2843294A1 (en) * 2002-08-06 2004-02-13 Louis Setiey Insert to be engaged in hip prosthesis cotyloid cup comprises hemispherical shell and hemispherical core able to pivot inside shell and receive femoral rod hemispherical head
GB2406056A (en) * 2003-09-17 2005-03-23 Corin Ltd Bone tapping kit, fixation member and prosthetic cup
WO2004069091A3 (en) * 2001-07-16 2005-08-25 Ceram Concept L L C Cotyloid implant for a hip prosthesis
GB2424187A (en) * 2005-03-17 2006-09-20 Biomet Uk Ltd A Joint prosthesis which includes a shell having a region intended to protrude beyond a bone surface
US7326253B2 (en) * 2001-11-16 2008-02-05 Depuy Products, Inc. Prosthetic cup assembly having increased assembly congruency
US8123815B2 (en) 2008-11-24 2012-02-28 Biomet Manufacturing Corp. Multiple bearing acetabular prosthesis
US8308810B2 (en) 2009-07-14 2012-11-13 Biomet Manufacturing Corp. Multiple bearing acetabular prosthesis
FR3004102A1 (en) * 2013-04-09 2014-10-10 Hubert Georges Marcel Candavoine MIXED COTYLOID IMPLANT WITH REPORTED FIXING LEGS
WO2016010895A1 (en) * 2014-07-15 2016-01-21 Biomet Manufacturing, Llc. Acetabular prosthesis liner
EP3050539A1 (en) * 2015-01-27 2016-08-03 AQ Implants GmbH Revision endoprosthesis

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FR2682588A1 (en) * 1991-10-22 1993-04-23 Lepine Groupe Acetabular implant
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003092557A3 (en) * 2001-07-16 2004-04-08 Jean-Yves Lazennec Cotyloid implant for hip prosthesis
FR2827154A1 (en) * 2001-07-16 2003-01-17 Jean Yves Lazennec Cotyloid implant for hip prosthesis comprises metal cup with two separate inserts
WO2004069091A3 (en) * 2001-07-16 2005-08-25 Ceram Concept L L C Cotyloid implant for a hip prosthesis
FR2827503A1 (en) * 2001-07-23 2003-01-24 Macara Frederique Modular reconstruction assembly for hip joint prosthesis has acetabular cavity support plate fixed with pile screws, spacer and metal cup
WO2003013397A3 (en) * 2001-07-23 2003-11-27 Frederique Macara Modular acetabular cup, and anchoring screw for fixing a prosthetic implant such as said acetabular cup
AU2002336155B2 (en) * 2001-07-23 2006-11-30 Frederique Macara Modular acetabular cup, and anchoring screw for fixing a prosthetic implant such as said acetabular cup
US7326253B2 (en) * 2001-11-16 2008-02-05 Depuy Products, Inc. Prosthetic cup assembly having increased assembly congruency
FR2843294A1 (en) * 2002-08-06 2004-02-13 Louis Setiey Insert to be engaged in hip prosthesis cotyloid cup comprises hemispherical shell and hemispherical core able to pivot inside shell and receive femoral rod hemispherical head
US8529633B2 (en) 2003-01-10 2013-09-10 Ceram Concept Llc Cotyloid implant for a hip prosthesis
JP2010012288A (en) * 2003-01-10 2010-01-21 Ceram Concept Llc Cotyloid implant for hip prosthesis
GB2406056A (en) * 2003-09-17 2005-03-23 Corin Ltd Bone tapping kit, fixation member and prosthetic cup
US7641656B2 (en) 2003-09-17 2010-01-05 Corin Limited Prosthetic cup
GB2406056B (en) * 2003-09-17 2007-07-11 Corin Ltd Prosthetic cup
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GB2424187A (en) * 2005-03-17 2006-09-20 Biomet Uk Ltd A Joint prosthesis which includes a shell having a region intended to protrude beyond a bone surface
US8123815B2 (en) 2008-11-24 2012-02-28 Biomet Manufacturing Corp. Multiple bearing acetabular prosthesis
US9445903B2 (en) 2008-11-24 2016-09-20 Biomet Manufacturing, Llc Multi-bearing acetabular prosthesis
US8308810B2 (en) 2009-07-14 2012-11-13 Biomet Manufacturing Corp. Multiple bearing acetabular prosthesis
US9445904B2 (en) 2009-07-14 2016-09-20 Biomet Manufacturing, Llc Multiple bearing acetabular prosthesis
FR3004102A1 (en) * 2013-04-09 2014-10-10 Hubert Georges Marcel Candavoine MIXED COTYLOID IMPLANT WITH REPORTED FIXING LEGS
WO2016010895A1 (en) * 2014-07-15 2016-01-21 Biomet Manufacturing, Llc. Acetabular prosthesis liner
EP3050539A1 (en) * 2015-01-27 2016-08-03 AQ Implants GmbH Revision endoprosthesis

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