FR2831424A3 - Cotyledon implant with fixings has flange at opening level of cup and with holes to receive fixing feet - Google Patents

Cotyledon implant with fixings has flange at opening level of cup and with holes to receive fixing feet Download PDF

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Publication number
FR2831424A3
FR2831424A3 FR0114192A FR0114192A FR2831424A3 FR 2831424 A3 FR2831424 A3 FR 2831424A3 FR 0114192 A FR0114192 A FR 0114192A FR 0114192 A FR0114192 A FR 0114192A FR 2831424 A3 FR2831424 A3 FR 2831424A3
Authority
FR
France
Prior art keywords
cup
holes
fixing
implant
implant according
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
FR0114192A
Other languages
French (fr)
Other versions
FR2831424B3 (en
Inventor
Hubert Candavoine
Buttet Michel De
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.)
Medical Solution SARL
Original Assignee
Medical Solution SARL
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 Medical Solution SARL filed Critical Medical Solution SARL
Priority to FR0114192A priority Critical patent/FR2831424B3/en
Publication of FR2831424A3 publication Critical patent/FR2831424A3/en
Application granted granted Critical
Publication of FR2831424B3 publication Critical patent/FR2831424B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—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
    • 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
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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
    • A61F2/30721—Accessories
    • A61F2/30744—End caps, e.g. for closing an endoprosthetic cavity
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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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    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4609—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of acetabular cups
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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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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
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    • A61F2002/30181—Y-shaped
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • 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
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • 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
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
    • A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
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Landscapes

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

Abstract

The Cotyledon implant has a metal ring or cup (1) with fixings into the Cotyledon cavity of the iliac bone. the cup receives an insert for the joint. The cup has a flange (1b) at the level of its opening. The flange has holes (1b1) to receive fixings for retaining feet (5). The feet can be indexed in place.

Description

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IMPLANT COTYLOIDIEN AVEC PATTE DE FIXATION
RAPPORTEE
L'invention se rattache au secteur technique des implants médicaux, notamment des implants cotyloïdiens pour prothèse de la hanche. COTYLOIDIAN IMPLANT WITH FIXING LEG
REPORTED
The invention relates to the technical sector of medical implants, in particular acetabular implants for hip prosthesis.

D'une manière parfaitement connue, un implant cotyloïdien comprend un anneau ou cupule métallique destiné à être fixé dans la cavité cotyloïdienne de l'os iliaque. La fixation de la cupule peut être effectuée au moyen d'un ciment orthopédique, en combinaison avec des agencements que présente généralement la périphérie externe de ladite cupule, ou au moyen de vis ou autres organes d'ancrage engagés dans l'épaisseur de la cupule en étant convenablement orientés angulairement et vissés dans la cavité cotyloïdienne.  In a perfectly known manner, an acetabular implant comprises a metal ring or cup intended to be fixed in the acetabular cavity of the iliac bone. The fixing of the cup can be carried out by means of an orthopedic cement, in combination with arrangements that generally present the external periphery of said cup, or by means of screws or other anchoring members engaged in the thickness of the cup being suitably oriented angularly and screwed into the acetabular cavity.

La cupule délimite une cavité interne de forme générale hémisphérique destinée à recevoir un insert ou noyau dans lequel est monté, avec capacité d'orientation angulaire, une tête fémorale d'un implant correspondant. L'insert peut être réalisé dans différents matériaux notamment en polyéthylène, en céramique ou en métal. Il en est de même en ce qui concerne la tête fémorale correspondante.  The cup delimits an internal cavity of generally hemispherical shape intended to receive an insert or core in which is mounted, with angular orientation capacity, a femoral head of a corresponding implant. The insert can be made of different materials, in particular polyethylene, ceramic or metal. The same is true for the corresponding femoral head.

La nature du matériau constituant l'insert et la tête fémorale est susceptible de générer un nombre important de couples de frottement, étant rappelé que l'insert et la tête peuvent être exécutés dans des matériaux différents, par exemple polyéthylène-inox, céramique-céramique, métal- métal,....  The nature of the material constituting the insert and the femoral head is likely to generate a large number of friction couples, it being recalled that the insert and the head can be executed in different materials, for example polyethylene-stainless steel, ceramic-ceramic , metal- metal, ....

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De nombreuses solutions ont également été proposées pour assurer la fixation de l'insert dans la cavité hémisphérique de la cupule, soit d'une manière fixe, soit avec capacité de déplacement multidirectionnel.  Many solutions have also been proposed for securing the insert in the hemispherical cavity of the cup, either in a fixed manner or with multidirectional displacement capacity.

Quelle que soit la forme de réalisation de l'implant cotyloïdien, il convient généralement de distinguer deux grands types d'implants, à savoir ceux utilisés en première intention, et ceux utilisés en reprise, c'est-à-dire en cas de destruction importante de la cavité cotyloïdienne de l'os iliaque.  Whatever the embodiment of the acetabular implant, it is generally advisable to distinguish two main types of implants, namely those used in first intention, and those used in recovery, that is to say in case of destruction significant of the acetabular cavity of the iliac bone.

Or, en plus des agencements de fixation classiques que peut présenter la cupule, cette dernière, dans le cas d'un implant de reprise, peut présenter des agencements supplémentaires généralement sous forme de pattes de profil divers. Les pattes sont formées directement, en débordement, au niveau de l'ouverture de la cavité hémisphérique de ladite cupule.  However, in addition to the conventional fixing arrangements that the cup may have, the latter, in the case of a recovery implant, may have additional arrangements generally in the form of legs of various profile. The legs are formed directly, overflowing, at the opening of the hemispherical cavity of said cup.

Compte tenu de ces dispositions, il en résulte que l'implant cotyloïdien dit de première intention ne peut pas être utilisé dans le cas d'une reprise et, inversement, l'implant cotyloïdien dit de reprise n'est pas adapté pour une arthroplastie de première intention.  Given these provisions, it follows that the acetabular implant called first line can not be used in the case of a recovery and, conversely, the acetabular implant called recovery is not suitable for arthroplasty of first intention.

A partir de cet état de la technique, le problème que se propose de résoudre l'invention est de pouvoir proposer à l'opérateur un implant cotyloïdien dont la cupule métallique notamment, peut être utilisée aussi bien en première intention qu'en cas de reprise, avec la possibilité d'utiliser tout type d'insert, de manière interchangeable.  From this state of the art, the problem which the invention proposes to solve is to be able to offer the operator an acetabular implant, the metal cup in particular of which can be used both in first intention and in the event of recovery , with the possibility of using any type of insert, interchangeably.

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Pour résoudre un tel problème, H a été conçu et mis au point un implant cotyloïdien dont la cupule présente, au niveau de l'ouverture de sa cavité recevant la tête fémorale, des agencements aptes à assurer la solidarisation, avec capacité de montage à volonté, d'au moins une patte rapportée de fixation avec une partie de l'os iliaque, notamment dans le cas d'une reprise.  To solve such a problem, H has been designed and developed an acetabular implant, the cup of which has, at the opening of its cavity receiving the femoral head, arrangements suitable for securing, with mounting capacity at will. , at least one attached attachment tab with part of the iliac bone, in particular in the case of recovery.

Pour résoudre te problème posé de permettre, dans le cas d'une reprise, la fixation de la cupule métallique à des endroits déterminés de la cavité cotyloïdienne de l'os iliaque, les agencements sont constitués par une collerette circulaire présentant une pluralité de trous débouchant répartis sur sa circonférence et destinés à recevoir des moyens d'assemblage que présente (nt) directement, ou d'une manière rapportée, la ou le pattes de fixation
Compte tenu du caractère amovible de la ou des pattes de fixation, ces dernières présentent, d'une part, une partie d'appui avec la collerette et recevant les moyens d'assemblage coopérant avec au moins deux trous de ladite collerette pour assurer une indexation angulaire et, d'autre part, une partie de fixation avec l'os iliaque. To solve the problem posed to allow, in the case of a recovery, the fixing of the metal cup at determined locations of the acetabular cavity of the iliac bone, the arrangements are constituted by a circular flange having a plurality of through holes distributed over its circumference and intended to receive assembly means which present (s) directly, or in a reported manner, the fixing lug (s)
Given the removable nature of the fixing lug (s), the latter have, on the one hand, a support part with the flange and receiving the assembly means cooperating with at least two holes in said flange to ensure indexing angular and, on the other hand, a fixing part with the iliac bone.

A partir de cette conception de base et compte tenu des cas pathologiques à traiter, les pattes de fixation rapportées peuvent présenter différentes formes de réalisation, parmi lesquelles : - la partie de fixation de la patte est droite et présente des trous pour le passage d'organes d'assemblage,  From this basic concept and taking into account the pathological cases to be treated, the attached fixing lugs can have different embodiments, among which: - the fixing part of the lug is straight and has holes for the passage of assembly components,

<Desc/Clms Page number 4><Desc / Clms Page number 4>

l'extrémité de la partie de fixation de la patte présente une forme en T ou Y avec des trous pour le passage d'organes d'assemblage ; l'extrémité de la partie de fixation de la patte est recourbée pour faire office de crochet.  the end of the fixing part of the tab has a T or Y shape with holes for the passage of assembly members; the end of the fixing part of the tab is bent to act as a hook.

L'implant cotyloïdien tel que défini selon les caractéristiques de l'invention peut présenter, en combinaison avec de telles caractéristiques, des agencements parfaitement connus pour un homme du métier, parmi lesquels : la cupule présente des trous obturables pour l'engagement d'organes d'ancrage coopérant avec le fond de la cavité cotyloïdienne de l'os iliaque ; l'insert est monté dans la cavité de la cupule, d'une manière fixe ou avec capacité de déplacement multidirectionnel.  The acetabular implant as defined according to the characteristics of the invention may have, in combination with such characteristics, arrangements perfectly known to a person skilled in the art, among which: the cup has closable holes for the engagement of organs anchor cooperating with the bottom of the acetabulum of the iliac bone; the insert is mounted in the cavity of the cup, in a fixed manner or with multidirectional displacement capacity.

L'invention est exposee ci-après plus en détail à l'aide des figures des dessins annexés dans lesquels : - la figure 1 est une vue en perspective d'une forme de réalisation de l'implant cotyloïdien selon l'invention, avant montage des pattes de fixation ; - la figure 2 est une vue correspondant à la figure 1 après montage des pattes de fixation ; - la figure 3 est une vue en perspective de dessous montrant l'ensemble de l'implant cotyloïdien équipé des pattes de fixation ; - la figure 4 est une vue en coupe longitudinale montrant un exemple de fixation de l'implant cotyloïdien dans la cavité correspondante de l'os iliaque.  The invention is set out below in more detail with the aid of the figures of the appended drawings in which: - Figure 1 is a perspective view of an embodiment of the acetabular implant according to the invention, before mounting fixing lugs; - Figure 2 is a view corresponding to Figure 1 after mounting the fixing lugs; - Figure 3 is a perspective view from below showing the entire acetabular implant equipped with fixing lugs; - Figure 4 is a longitudinal sectional view showing an example of attachment of the acetabular implant in the corresponding cavity of the iliac bone.

<Desc/Clms Page number 5> <Desc / Clms Page number 5>

Figure img00050001
Figure img00050001

On rappelle, d'une manière parfaitement connue, qu'un implant cotyloïdien comprend, pour l'essentiel, un anneau ou cupule métallique (1) recevant un noyau ou inscrt (2) destiné à coopérer avec) a tête fémorale (T) d'un implant correspondant. Le noyau (2) est exécuté en tout matériau, notamment en polyéthylène, céramique, acier inoxydable,... Il en est de même en ce qui concerne la tête fémorale (T). It will be recalled, in a perfectly known manner, that an acetabular implant essentially comprises a metal ring or cup (1) receiving a core or inset (2) intended to cooperate with) a femoral head (T) d 'a corresponding implant. The core (2) is made of any material, in particular polyethylene, ceramic, stainless steel, etc. It is the same with regard to the femoral head (T).

Selon une caractéristique essentielle de l'invention, la cupule métallique (1) peut être agencée à volonté pour être utilisée, soit dans le cas d'une première intention, soit dans le cas d'une reprise.  According to an essential characteristic of the invention, the metal cup (1) can be arranged at will to be used, either in the case of a first intention, or in the case of a recovery.

Dans ce but, la cupule (1) présente, au niveau de l'ouverture de sa cavité (la) de forme générale hémisphérique, des agencements aptes à assurer la solidarisation, d'une manière démontable, d'au moins une mais de préférence plusieurs pattes rapportées de fixation (3), (4), (5),... Ces pattes sont conformées en forme et dimensions pour être fixées à une ou des parties de l'os iliaque, tel que, à titre indicatif nullement limitatif le toit de cotyle.  For this purpose, the cup (1) has, at the opening of its cavity (la) of generally hemispherical shape, arrangements capable of securing, in a removable manner, at least one but preferably several attached fixing legs (3), (4), (5), ... These legs are shaped in shape and dimensions to be fixed to one or parts of the iliac bone, such that, by way of non-limiting indication the cup roof.

Dans ce but, la cupule (1) présente une collerette circulaire (1 b) formée, de préférence, dans le même plan que celui défini par l'ouverture de la cavité hémisphérique (la) de ladite cupule. Cette collerette (1 b) présente une pluralité de trous débouchant (Ibl) répartis sur sa circonférence, en étant régulièrement alternés ou non.  For this purpose, the cup (1) has a circular collar (1 b) preferably formed in the same plane as that defined by the opening of the hemispherical cavity (la) of said cup. This flange (1b) has a plurality of through holes (Ibl) distributed around its circumference, being regularly alternated or not.

Chacune des pattes de fixation (3), (4), (5), quelle que soit sa forme de réalisation, présente une partie d'appui (3a), (4a), (Sa) coopérant avec la  Each of the fixing lugs (3), (4), (5), whatever its embodiment, has a support part (3a), (4a), (Sa) cooperating with the

<Desc/Clms Page number 6><Desc / Clms Page number 6>

face de dessus de la collerette (Ib). Ces parties d'appui (3a), (4a), (Sa) présentent des agencements pour être fixés, en combinaison, avec les trous (Ibl) de la collerette (lb). Par exemple, chaque partie d'appui (3a), (4a), (5a) présente, directement ou d'une manière rapportée, au moins un mais généralement deux organes d'assemblage (6) coopérant avec deux trous consécutifs (1 b 1) de la coJlerette, assurant ainsi une parfaite indexation angulaire des pattes.  top face of the collar (Ib). These support parts (3a), (4a), (Sa) have arrangements for being fixed, in combination, with the holes (Ibl) of the flange (lb). For example, each support part (3a), (4a), (5a) has, directly or in an attached manner, at least one but generally two assembly members (6) cooperating with two consecutive holes (1b 1) of the collar, thus ensuring perfect angular indexing of the legs.

A noter également que les parties d'appui (3a), (4a), (5a) des différentes pattes (3), (4), (5) peuvent être engagées dans des évidements de forme complémentaires formés dans l'épaisseur de ! a collerette, de manière à ce que les pattes n'apparaissent pas en débordement de ladite collerette.  Note also that the support parts (3a), (4a), (5a) of the different tabs (3), (4), (5) can be engaged in recesses of complementary shape formed in the thickness of! has a collar, so that the tabs do not appear beyond the said collar.

Comme indiqué, la fixation des pattes (3), (4), (5) sur la collerette (lb) peut s'effectuer en combinaison avec les organes d'assemblage (6), de différentes manières, telles que clipage, vissage,...  As indicated, the fixing of the tabs (3), (4), (5) on the flange (lb) can be carried out in combination with the assembly members (6), in different ways, such as clipping, screwing, ...

Les pattes (3), (4), (5) peuvent être exécutées dans différents matériaux et présenter, au-delà de leur partie d'appui ( (3a), (4a), (5a), différentes formes géométriques et sections, en fonction de la nature de la partie de l'os iliaque, où elles doivent être fixées.  The legs (3), (4), (5) can be made of different materials and have, beyond their bearing part ((3a), (4a), (5a), different geometric shapes and sections, depending on the nature of the part of the iliac bone, where they should be fixed.

Par exemple, la patte (3) présente une partie de fixation droite (3b) présentant des trous (3c) pour le passage d'organes d'assemblage.  For example, the tab (3) has a straight fixing part (3b) having holes (3c) for the passage of assembly members.

La patte (4) présente une partie de fixation (4b) présentant, à son extrémité, une forme en T (ou en Y) avec des trous (4c) pour le passage d'organes d'assemblage.  The tab (4) has a fixing part (4b) having, at its end, a T-shaped (or Y-shaped) with holes (4c) for the passage of assembly members.

La patte (5) présente une extrémité recourbée (5b) pour faire office de crochet.  The tab (5) has a curved end (5b) to act as a hook.

<Desc/Clms Page number 7> <Desc / Clms Page number 7>

Figure img00070001
Figure img00070001

Bien évidemment, à partir de cette conception de base, la cavité cotyloïdienne peut être équipée d'une ou plusieurs pattes de même conception ou de conception différente. L'exemple illustré sur les figures des dessins est donné à titre indicatif nullement limitatif. La cupule (1) peut recevoir par exempte de une à six pattes de fixation. Obviously, from this basic design, the acetabulum can be equipped with one or more legs of the same design or of a different design. The example illustrated in the figures of the drawings is given by way of non-limiting indication. The cup (1) can receive, for example, from one to six fixing lugs.

La cupule (1) présente tout type d'agencement pour sa fixation dans la cavité cotyloïdienne de l'os iliaque. Par exemple, la cavité (la) de la cupule (1) peut présenter des trous (le) convenablement positionnés et orientés pour l'engagement de vis d'ancrage (7), de plots de stabilité,....  The cup (1) has any type of arrangement for fixing it in the acetabular cavity of the iliac bone. For example, the cavity (la) of the cup (1) may have holes (le) suitably positioned and oriented for the engagement of anchoring screws (7), of studs of stability, ...

Ces trous peuvent être obturés par des bouchons amovibles. De même, la cavité hémisphérique (la) de la cupule (l) présente, au niveau de sa zone polaire, un évidement (le) en vue de son impaction. These holes can be closed with removable plugs. Similarly, the hemispherical cavity (la) of the cup (l) has, at its polar region, a recess (le) for its impaction.

Enfin, l'insert (2) est monté dans la cavité (la) de la cupule (1) de manière fixe ou avec capacité de déplacement multidirectionnel et cela par tout moyen connu et approprié couramment utilisés dans le domaine des implants cotyloïdicns.  Finally, the insert (2) is mounted in the cavity (la) of the cup (1) in a fixed manner or with multidirectional displacement capacity and this by any known and appropriate means commonly used in the field of acetabular implants.

Les avantages ressortent bien de la description. The advantages are apparent from the description.

Claims (1)

REVENDICATIONS - 1-Implant cotyloïdien comprenant un anneau ou cupule métallique (1) présentant des agencements de fixation dans la cavité cotyloïdienne de l'os iliaque, ladite cupule (1) recevant un noyau ou insert (2) pour le montage avec capacité d'orientation d'une tête fémorale d'un implant correspondant, caractérisé en ce que la cupule (1) présente, au niveau de l'ouverture de sa cavité (la) recevant la tête fémorale, des agencements (lb) aptes à assurer la solidarisation, avec capacité de montage à volonté, d'au moins une patte rapportée de fixation avec une partie de l'os iliaque, notamment dans le cas d'une reprise. CLAIMS - 1-Cotyloid implant comprising a metal ring or cup (1) having fixing arrangements in the cotyloid cavity of the iliac bone, said cup (1) receiving a core or insert (2) for mounting with capacity orientation of a femoral head of a corresponding implant, characterized in that the cup (1) has, at the opening of its cavity (la) receiving the femoral head, arrangements (lb) capable of ensuring the joining , with mounting capacity at will, of at least one attached tab for fixing with part of the iliac bone, in particular in the case of a recovery. - 2-Implant selon la revendication 1, caractérisé en ce que les agencements sont constitués par une collerette circulaire (lob) présentant une pluralité de trous débouchants (Ibl) répartis sur sa circonférence et destinés à recevoir des moyens d'assemblage (6) que présente (nt) directement, ou d'une manière rapportée, la ou le pattes de fixation (3), (4), (5). - 2-Implant according to claim 1, characterized in that the arrangements consist of a circular flange (lob) having a plurality of through holes (Ibl) distributed over its circumference and intended to receive assembly means (6) that present (s) directly, or in a reported manner, the fixing lug (s) (3), (4), (5). - 3-Implant selon la revendication 2, caractérisé en ce que la ou les pattes de fixation présente (nt), d'une part, une partie d'appui avec la collerette (1b) et recevant les moyens d'assemblage (6) coopérant avec au moins deux trous (Ibl) de ladite collerette (lb) pour assurer une indexation angulaire et, d'autre part, une partie de fixation avec l'os iliaque. - 3-Implant according to claim 2, characterized in that the fixing lug (s) has (s), on the one hand, a support part with the flange (1b) and receiving the assembly means (6) cooperating with at least two holes (Ibl) of said collar (lb) to ensure angular indexing and, on the other hand, a fixing part with the iliac bone. <Desc/Clms Page number 9><Desc / Clms Page number 9> -4- Implant selon la revendication 2, caractérisé en ce que la partie de fixation de la patte (3) est droite et présente des trous pour le passage d'organes d'assemblage.  -4- Implant according to claim 2, characterized in that the fixing portion of the tab (3) is straight and has holes for the passage of assembly members. - 5-Implant selon la revendication 2, caractérisé en ce que l'extrémité de la partie de fixation de la patte (4) présente une forme en T ou Y avec des trous pour le passage d'organes d'assemblage. - 5-Implant according to claim 2, characterized in that the end of the fixing portion of the tab (4) has a T or Y shape with holes for the passage of assembly members. - 6-Implant selon la revendication 2, caractérisé en ce que l'extrémité de la partie de fixation de la patte (5) est recourbée pour faire office de crochet.  - 6-Implant according to claim 2, characterized in that the end of the fixing portion of the tab (5) is curved to act as a hook. - 7-Implant selon la revendication 1, caractérisé en ce que la cupule (1) présente des trous obturables pour l'engagement d'organes d'ancrage coopérant avec le fond de la cavité cotyloïdienne de l'os iliaque. - 7-Implant according to claim 1, characterized in that the cup (1) has closable holes for the engagement of anchoring members cooperating with the bottom of the acetabular cavity of the iliac bone. - 8-Implant selon la revendication I, caractérisé en ce que l'insert (2) est monté dans la cavité (la) de la cupule, d'une manière fixe ou avec capacité de déplacement multidirectionnel.- 8-Implant according to claim I, characterized in that the insert (2) is mounted in the cavity (la) of the cup, in a fixed manner or with multidirectional displacement capacity.
FR0114192A 2001-10-26 2001-10-26 COTYLOIDIAN IMPLANT WITH ADDED FIXING LEG Expired - Fee Related FR2831424B3 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006031911A3 (en) * 2004-09-15 2006-07-13 Wright Medical Technologies In Unitary acetabular cup prosthesis with extension for deficient acetabulum
WO2007082810A2 (en) * 2006-01-16 2007-07-26 Dot Gmbh Modular revision socket for hip-joint prosthesis and anchoring pin therefor
FR3004102A1 (en) * 2013-04-09 2014-10-10 Hubert Georges Marcel Candavoine MIXED COTYLOID IMPLANT WITH REPORTED FIXING LEGS

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Publication number Priority date Publication date Assignee Title
DE9212420U1 (en) * 1992-09-15 1994-01-27 Waldemar Link GmbH & Co, 22339 Hamburg Socket for an endoprosthetic acetabular cup
EP0605368A1 (en) * 1992-12-18 1994-07-06 ITALPRO S.p.A. Prosthesis cotyl cup element for reconstructing a hip acetabulum in a hip full recovery operation
FR2710836A1 (en) * 1993-10-06 1995-04-14 Rambert Andre Acetabular element of a total hip prosthesis which can be implanted without cement
EP0829244A2 (en) * 1996-09-11 1998-03-18 Industrias Quirurgicas De Levante Reconstruction acetabulum prosthesis
EP0846453A2 (en) * 1996-12-07 1998-06-10 Johnson &amp; Johnson Professional, Inc. Modular acetabular reinforcement system
FR2758255A1 (en) * 1997-01-16 1998-07-17 Groupe Lepine Repeat cotyloid implant for hip replacement
FR2786390A1 (en) * 1998-12-01 2000-06-02 Bridgehall Consultants Ltd Corrective cotyle for treatment of hip pathologies comprises flattened hemispherical shell extended on one side and fitted with optional insert
EP1034754A1 (en) * 1999-03-10 2000-09-13 Sulzer Orthopedics Ltd. Kit for the outer shell of an artificial acetabular cup

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9212420U1 (en) * 1992-09-15 1994-01-27 Waldemar Link GmbH & Co, 22339 Hamburg Socket for an endoprosthetic acetabular cup
EP0605368A1 (en) * 1992-12-18 1994-07-06 ITALPRO S.p.A. Prosthesis cotyl cup element for reconstructing a hip acetabulum in a hip full recovery operation
FR2710836A1 (en) * 1993-10-06 1995-04-14 Rambert Andre Acetabular element of a total hip prosthesis which can be implanted without cement
EP0829244A2 (en) * 1996-09-11 1998-03-18 Industrias Quirurgicas De Levante Reconstruction acetabulum prosthesis
EP0846453A2 (en) * 1996-12-07 1998-06-10 Johnson &amp; Johnson Professional, Inc. Modular acetabular reinforcement system
FR2758255A1 (en) * 1997-01-16 1998-07-17 Groupe Lepine Repeat cotyloid implant for hip replacement
FR2786390A1 (en) * 1998-12-01 2000-06-02 Bridgehall Consultants Ltd Corrective cotyle for treatment of hip pathologies comprises flattened hemispherical shell extended on one side and fitted with optional insert
EP1034754A1 (en) * 1999-03-10 2000-09-13 Sulzer Orthopedics Ltd. Kit for the outer shell of an artificial acetabular cup

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006031911A3 (en) * 2004-09-15 2006-07-13 Wright Medical Technologies In Unitary acetabular cup prosthesis with extension for deficient acetabulum
US7918896B2 (en) 2004-09-15 2011-04-05 Wright Medical Technology, Inc. Unitary acetabular cup prosthesis with extension for deficient acetabulum
WO2007082810A2 (en) * 2006-01-16 2007-07-26 Dot Gmbh Modular revision socket for hip-joint prosthesis and anchoring pin therefor
WO2007082810A3 (en) * 2006-01-16 2008-02-21 Dot Gmbh Modular revision socket for hip-joint prosthesis and anchoring pin therefor
FR3004102A1 (en) * 2013-04-09 2014-10-10 Hubert Georges Marcel Candavoine MIXED COTYLOID IMPLANT WITH REPORTED FIXING LEGS

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