FR2838329A1 - Cotyle structure for treating hip complaints has one or more fixing holes with temporary plugs that can be broken off prior to use - Google Patents

Cotyle structure for treating hip complaints has one or more fixing holes with temporary plugs that can be broken off prior to use Download PDF

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Publication number
FR2838329A1
FR2838329A1 FR0212784A FR0212784A FR2838329A1 FR 2838329 A1 FR2838329 A1 FR 2838329A1 FR 0212784 A FR0212784 A FR 0212784A FR 0212784 A FR0212784 A FR 0212784A FR 2838329 A1 FR2838329 A1 FR 2838329A1
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FR
France
Prior art keywords
hole
acetabulum
cup
walls
integral
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.)
Pending
Application number
FR0212784A
Other languages
French (fr)
Inventor
Minguelita Marcolina Lourens
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.)
Taloco Investments NV
Original Assignee
Taloco Investments NV
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Filing date
Publication date
Application filed by Taloco Investments NV filed Critical Taloco Investments NV
Publication of FR2838329A1 publication Critical patent/FR2838329A1/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • 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
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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
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
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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
    • 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
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—Three-dimensional shapes cylindrical
    • 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
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness

Abstract

The cotyle structure, especially for an acetabular implant or replacement, consists of a cup-shaped body (2) with one or more holes (3) for a pelvic fixing. Each hole is fitted with a plug (6) that is attached provisionally to its inner walls and can be broken off when the hole is required for use. Each plug has a cylindrical body with a blind inner cavity (7) and is connected by its outer surface to the inner walls of the hole, which have a spherical section to receive a fixing screw head and an adjoining conical section adjacent to the outer surface of the structure.

Description

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STRUCTURE DE COTYLE DESTINEE A ETRE UTILISEE DANS LE
TRAITEMENT DES PATHOLOGIES DE LA HANCHE
La présente invention concerne une structure de cotyle destinée à être utilisée dans le traitement des pathologies de la hanche. Plus particulièrement, l'invention concerne une structure de cotyle à universalité élevée, convenant soit comme implant soit comme cotyle de remplacement. COTYL STRUCTURE FOR USE IN THE
TREATMENT OF HIP CONDITIONS
The present invention relates to a cup structure intended for use in the treatment of hip pathologies. More particularly, the invention relates to a cup structure with high universality, suitable either as an implant or as a replacement cup.

Comme cela est connu dans les diverses pathologies de la hanche, on est souvent contraint de recourir aux arthroprothèses. Celles-ci sont généralement constituées par une tige qui est positionnée dans le canal fémoral, par un cotyle qui est positionné dans la cavité acétabulaire du bassin, et par une tête qui est positionnée sur le sommet de la tige et qui est articulée à l'intérieur de la surface intérieure du cotyle prothétique, permettant ainsi le rétablissement fonctionnel de l'articulation de la hanche.  As is known in the various pathologies of the hip, one is often forced to resort to arthroprostheses. These are generally constituted by a rod which is positioned in the femoral canal, by an acetabulum which is positioned in the acetabular cavity of the pelvis, and by a head which is positioned on the top of the rod and which is articulated to the interior of the interior surface of the prosthetic acetabulum, thereby allowing the functional restoration of the hip joint.

Les cotyles peuvent être de formes diverses, par exemple hémisphérique, tronconique, d'une partie d'hémisphère, ovaloïde ou autres, et on peut les classer en deux types : cimenté et non cimenté.  The acetabular cups can be of various forms, for example hemispherical, frustoconical, of a part of hemisphere, ovaloid or others, and one can classify them in two types: cemented and not cemented.

Les cotyles cimentés sont normalement en polyéthylène, avec une surface extérieure comportant des rainures pour l'ancrage du ciment.  The cemented acetabular cups are normally made of polyethylene, with an outer surface having grooves for anchoring the cement.

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Les deuxièmes sont généralement réalisés en deux composants : une coque externe en matériau métallique qui vient en contact avec l'os, et un composant interne ou insert, qui peut être en polyéthylène, qui s'accouple de façon stable avec la coque métallique sur une face, et dont l'autre est munie d'une cavité hémisphérique à l'intérieur de laquelle vient s'articuler la tête prothétique susmentionnée, permettant ainsi le rétablissement fonctionnel de l'articulation de la hanche.  The second are generally made of two components: an external shell of metallic material which comes into contact with the bone, and an internal component or insert, which can be of polyethylene, which mates stably with the metallic shell on a face, and the other of which is provided with a hemispherical cavity inside which is articulated the aforementioned prosthetic head, thus allowing the functional restoration of the hip joint.

Les cotyles non cimentés sont dotés, de façon appropriée, sur la surface extérieure en contact avec l'os, d'une pluralité de trous susceptibles de recevoir des vis de fixation du cotyle lui-même à l'os.  Uncemented acetabulars are suitably provided, on the external surface in contact with the bone, with a plurality of holes capable of receiving screws for fixing the acetabulum itself to the bone.

L'utilisation des vis de fixation est parfois indispensable pour le bon fonctionnement de l'implant ; toutefois, la présence de trous diminue les surfaces de contact entre le cotyle et l'os, et, en particulier lorsque l'on utilise un insert en polyéthylène, les trous permettent la sortie depuis l'intérieur du cotyle, vers l'os, de déchets nocifs pour la durée dans le temps de l'implant.  The use of fixing screws is sometimes essential for the proper functioning of the implant; however, the presence of holes decreases the contact surfaces between the acetabulum and the bone, and, in particular when a polyethylene insert is used, the holes allow the exit from the interior of the acetabulum, towards the bone, harmful waste for the duration of the implant.

Par conséquent, actuellement, le chirurgien est contraint de choisir entre un cotyle cimenté avec des trous, qui lui garantit une fixation sûre à l'os, mais avec le risque de sortie de déchets, et sans trous, qui le protège contre le disque de déchets, mais présentant parfois un risque de fixation incorrecte.  Therefore, currently, the surgeon is forced to choose between a cup cemented with holes, which guarantees a secure fixation to the bone, but with the risk of waste coming out, and without holes, which protects it against the disc of waste, but sometimes presenting a risk of incorrect fixing.

Par conséquent, actuellement, le chirurgien doit avoir à sa disposition deux types de cotyles, avec trous et sans trous, et doit choisir selon le cas le cotyle le plus adapté pour l'implant à effectuer.  Consequently, currently, the surgeon must have at his disposal two types of acetabulum, with holes and without holes, and must choose according to the case the acetabulum most suitable for the implant to be performed.

En outre, dans le cas où, au contraire, le chirurgien prévoit un cotyle déjà muni de trous pour sa fixation avec des vis, et décide cependant de l'utiliser, par exemple, en le cimentant, la résistance du cotyle se  In addition, if, on the contrary, the surgeon provides a cup already provided with holes for fixing it with screws, and however decides to use it, for example, by cementing it, the strength of the cup

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trouvera, dans ce cas, diminuée par rapport à un cotyle non troué, et, en outre, le ciment passera à travers les trous, et, par conséquent, ceux-ci devront être obturés d'une quelconque façon.  will, in this case, be reduced compared to an undrilled cup, and, moreover, the cement will pass through the holes, and, consequently, these will have to be closed in some way.

Le but principal de la présente invention est de réaliser une structure de cotyle pour l'emploi dans le traitement des pathologies de la hanche, qui soit d'universalité élevée, étant adaptée soit pour l'utilisation comme cotyle sans vis, soit pour l'utilisation comme cotyle à fixer à l'aide de vis.  The main object of the present invention is to provide a cup structure for use in the treatment of hip pathologies, which is of high universality, being suitable either for use as a cup without screws, or for use as an acetabulum to be fixed with screws.

Dans l'étendue de ce but, un objet de la présente invention est de réaliser une structure de cotyle pour l'utilisation dans le traitement des pathologies de la hanche, qui permette au chirurgien de ne pas avoir à choisir le cotyle pendant l'intervention chirurgicale.  Within the scope of this object, an object of the present invention is to provide a cup structure for use in the treatment of hip pathologies, which allows the surgeon not to have to choose the cup during the intervention. surgical.

Un autre objet de la présente invention est de réaliser une structure de cotyle pour l'utilisation dans le traitement des pathologies de la hanche, qui permette au chirurgien d'ouvrir uniquement les trous où doivent effectivement être logées les vis de fixation.  Another object of the present invention is to provide a cup structure for use in the treatment of hip pathologies, which allows the surgeon to open only the holes where the fixing screws must actually be housed.

Un autre objet de la présente invention est de réaliser une structure de cotyle pour l'utilisation dans le traitement des pathologies de la hanche, qui permette au chirurgien de ne pas avoir à effectuer un choix préventif en ce qui concerne le type de cotyle, avec trous ou sans trous, à employer dans l'implant.  Another object of the present invention is to provide a cup structure for use in the treatment of hip pathologies, which allows the surgeon not to have to make a preventive choice as regards the type of cup, with holes or without holes, to be used in the implant.

Un objet final de la présente invention est de réaliser une structure de cotyle pour l'utilisation dans le traitement des pathologies de la hanche, qui soit de fiabilité élevée, de réalisation relativement simple et de coût compétitif.  A final object of the present invention is to provide a cup structure for use in the treatment of hip pathologies, which is of high reliability, relatively simple to produce and of competitive cost.

Ce but, ainsi que ces objets et d'autres objets qui apparaîtront mieux par la suite, sont atteints par une structure de cotyle à universalité élevée, en particulier pour l'utilisation dans le traitement des  This object, as well as these and other objects which will become more apparent hereinafter, are achieved by a high universality acetabular structure, in particular for use in the treatment of

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pathologies de la hanche, comprenant un corps intérieurement creux et doté d'au moins un trou sur la surface extérieure, susceptible de permettre le passage d'une vis associée, pour la fixation dudit cotyle à l'intérieur du siège dudit cotyle dans le bassin du patient, caractérisée en ce qu'elle comprend un élément obturateur susceptible d'obturer ledit trou au nombre d'au moins un, ledit élément obturateur étant temporairement solidaire des parois intérieures dudit trou et relié de façon amovible auxdites parois.  pathologies of the hip, comprising an internally hollow body and provided with at least one hole on the external surface, capable of allowing the passage of an associated screw, for fixing said acetabulum inside the seat of said acetabulum in the pelvis of the patient, characterized in that it comprises a shutter element capable of closing said hole at least one in number, said shutter member being temporarily integral with the interior walls of said hole and detachably connected to said walls.

D'autres caractéristiques et avantages de l'invention ressortiront principalement de la description de formes de réalisation préférées, mais non exclusives, de la structure de cotyle selon la présente invention, illustrée à titre indicatif et non limitatif dans les dessins joints, dans lesquels : la figure 1 illustre en vue en coupe schématique la structure de cotyle selon la présente invention ; la figure 2 illustre en vue en plan de dessus la structure de cotyle selon la présente invention, avec les éléments obturés qui ont été retirés ; la figure 3 illustre en vue en coupe partielle éclatée une première forme de réalisation de la structure de cotyle selon la présente invention ; la figure 3a illustre en vue en coupe partielle la structure de cotyle selon la présente invention, selon la première forme de réalisation ; la figure 4 illustre en coupe partielle éclatée une deuxième forme de réalisation de la structure de cotyle selon la présente invention ; la figure 4a illustre en coupe partielle la structure de cotyle selon la présente invention, selon la deuxième forme de réalisation.  Other characteristics and advantages of the invention will emerge mainly from the description of preferred, but not exclusive, embodiments of the acetabulum structure according to the present invention, illustrated by way of non-limiting example in the accompanying drawings, in which: Figure 1 illustrates in schematic sectional view the cup structure according to the present invention; Figure 2 illustrates in top plan view the cup structure according to the present invention, with the closed elements which have been removed; Figure 3 illustrates in partial exploded sectional view a first embodiment of the acetabulum structure according to the present invention; Figure 3a illustrates in partial sectional view the cup structure according to the present invention, according to the first embodiment; FIG. 4 illustrates in exploded partial section a second embodiment of the acetabulum structure according to the present invention; Figure 4a illustrates in partial section the acetabulum structure according to the present invention, according to the second embodiment.

Si l'on se réfère aux figures citées ci-  If we refer to the figures cited above

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dessus, la structure de cotyle selon la présente invention, indiquée globalement par le numéro de référence 1, comprend un corps, par exemple hémisphérique, ou bien d'une quelconque autre forme, 2, doté d'au moins un, et, de préférence, plusieurs, trous 3 susceptibles de permettre le passage de vis pour la fixation du cotyle dans le siège acétabulaire associé, par le chirurgien.  above, the acetabulum structure according to the present invention, indicated overall by the reference number 1, comprises a body, for example hemispherical, or of any other shape, 2, provided with at least one, and, preferably , several, holes 3 capable of allowing the passage of screws for fixing the acetabulum in the associated acetabular seat, by the surgeon.

Chaque trou est conformé de façon à comprendre une première partie sphérique 4 qui se raccorde à une partie 5 qui peut, de façon appropriée, être par exemple conique, évasée vers la surface extérieure du corps 2 du cotyle, ou bien cylindrique, comme représenté en détail dans la figure 3.  Each hole is shaped so as to comprise a first spherical part 4 which is connected to a part 5 which may, suitably, be for example conical, flared towards the external surface of the body 2 of the acetabulum, or else cylindrical, as shown in detail in figure 3.

Un élément obturateur 6 est prévu pour obturer chacun des trous 3 à l'intérieur desquels sont destinées à être insérées les vis associées pour la fixation du cotyle.  A shutter element 6 is provided for closing each of the holes 3 inside which are intended to be inserted the associated screws for fixing the acetabulum.

L'élément obturateur 6 est, de façon appropriée, réalisé à l'aide d'un corps cylindrique intérieurement creux, avec une cavité borgne indiquée dans la figure 3 par le numéro de référence 7, ce corps cylindrique s'achevant à une extrémité sous la forme d'une partie évasée 8 qui est reliée en correspondance avec la région de transition entre la partie sphérique 4 et la partie conique 5 du trou 3. Cependant, l'élément obturateur 6 sert de bouchon pour le trou 3 et est en substance relié aux parois du trou par l'intermédiaire d'une partie mince de la partie évasée 8.  The shutter element 6 is suitably produced using an internally hollow cylindrical body, with a blind cavity indicated in FIG. 3 by the reference number 7, this cylindrical body ending at one end under the shape of a flared part 8 which is connected in correspondence with the transition region between the spherical part 4 and the conical part 5 of the hole 3. However, the obturating element 6 serves as a plug for the hole 3 and is in substance connected to the walls of the hole via a thin part of the flared part 8.

De préférence, la partie du trou 3 qui reste libre dans la région adjacente à l'élément obturateur 6, depuis la partie de la cavité intérieure du cotyle, peut être remplie par un autre élément obturateur 9 qui vient se loger avec une partie centrale 10 dans la cavité 7 de l'élément obturateur 6, et, avec des ailettes latérales 11, vient occlure les régions latérales adjacentes à la cavité centrale 7 de l'élément obturateur 8.  Preferably, the part of the hole 3 which remains free in the region adjacent to the obturator element 6, from the part of the interior cavity of the acetabulum, can be filled with another obturator element 9 which is housed with a central part 10 in the cavity 7 of the obturating element 6, and, with lateral fins 11, comes to occlude the lateral regions adjacent to the central cavity 7 of the obturating element 8.

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Dans une deuxième forme de réalisation, illustrée dans la figure 4, le deuxième élément obturateur est doté, au lieu des ailettes 11, de parties 12 conformées de façon complémentaire aux régions adjacentes au trou 7 de l'élément obturateur 6.  In a second embodiment, illustrated in FIG. 4, the second obturating element is provided, instead of the fins 11, with parts 12 which are shaped in a complementary manner to the regions adjacent to the hole 7 of the obturating element 6.

Dans l'un ou l'autre cas, le deuxième élément obturateur n'est pas indispensable pour le fonctionnement de la structure de cotyle selon l'invention, du fait que la fonction prioritaire est assurée par le premier élément obturateur 6 qui occlut le trou 3 à l'intérieur duquel doit être logée la vis de fixation.  In either case, the second obturator element is not essential for the functioning of the acetabulum structure according to the invention, because the priority function is provided by the first obturator element 6 which occludes the hole 3 inside which the fixing screw must be housed.

L'utilisation du cotyle selon la présente invention se fait comme suit.  The use of the cup according to the present invention is as follows.

Une fois que le chirurgien a décidé d'employer le cotyle selon l'invention comme cotyle qui ne requiert pas la fixation par l'intermédiaire de vis, la pression qui est normalement exercée sur la surface extérieure du corps 2 du cotyle n'a aucune influence sur l'élément obturateur 6 qui reste ainsi en place, bloquant l'ouverture du trou 3, et ceci présente l'avantage d'offrir un cotyle de résistance accrue par rapport à un cotyle avec une surface trouée.  Once the surgeon has decided to use the acetabulum according to the invention as an acetabulum which does not require fixing by means of screws, the pressure which is normally exerted on the external surface of the body 2 of the acetabulum influence on the shutter element 6 which thus remains in place, blocking the opening of the hole 3, and this has the advantage of offering a cup of increased resistance compared to a cup with a perforated surface.

Dans le cas où le chirurgien décide au contraire de visser le cotyle dans son siège, à l' aide des trous 3, il suffira d'exercer une action de poussée sur le premier élément obturateur 6 afin de rompre la partie mince de liaison de ce dernier avec les parois latérales du trou 3, retirant par conséquent l'élément obturateur 6. Cet élément obturateur peut aussi être retiré avec le cotyle déjà implanté dans le bassin.  In the case where the surgeon decides on the contrary to screw the acetabulum in his seat, using the holes 3, it will suffice to exert a pushing action on the first obturator element 6 in order to break the thin connecting part of this the latter with the side walls of the hole 3, consequently removing the obturator element 6. This obturator element can also be removed with the cup already implanted in the pelvis.

Dans le cas dans lequel est également présent le deuxième élément obturateur, celui-ci doit être retiré préventivement.  In the case where the second shutter element is also present, it must be removed preventively.

Ce deuxième élément obturateur peut par exemple être vissé dans la cavité ou trou 7 du premier  This second obturating element can for example be screwed into the cavity or hole 7 of the first

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élément obturateur 6, et peut par conséquent être dévissé pour son retrait.  shutter element 6, and can therefore be unscrewed for its removal.

Par conséquent, en substance, les parties minces du premier élément obturateur 6, indiquées par le numéro de référence 15, doivent être rompues pour retirer le premier élément obturateur 6 et libérer par conséquent le trou 3.  Consequently, in essence, the thin parts of the first obturating element 6, indicated by the reference number 15, must be broken in order to remove the first obturating element 6 and consequently release the hole 3.

Par conséquent, le cotyle selon l'invention peut être indifféremment utilisé soit comme cotyle destiné à être utilisé sans vis, soit comme cotyle destiné à être vissé dans son siège, sans que le chirurgien ait à effectuer un choix préventif du type de cotyle.  Consequently, the cup according to the invention can be used either as a cup intended to be used without screws, or as a cup intended to be screwed into its seat, without the surgeon having to make a preventive choice of the type of cup.

L'élément obturateur 6 transforme par conséquent le cotyle d'un cotyle essentiellement sans trous en un cotyle avec trous, dans lesquels peuvent être insérées les vis de fixation. Ceci se traduit par une universalité élevée du cotyle lui-même, dans la mesure où le chirurgien peut employer un type de cotyle unique et décider ensuite sur l'instant quel type de fixation il souhaitera effectuer, en retirant l'élément obturateur 6, ou bien en détachant les parties minces 15 qui rendent l'élément obturateur 6 solidaire des parois intérieures du trou 3 du corps 2 du cotyle 1, dans le cas où il souhaite utiliser des vis de fixation.  The shutter element 6 therefore transforms the acetabulum from an acetabulum essentially without holes into an acetabulum with holes, into which the fixing screws can be inserted. This results in a high universality of the acetabulum itself, insofar as the surgeon can use a single type of acetabulum and then decide immediately what type of fixation he will wish to perform, by removing the obturator element 6, or well by detaching the thin parts 15 which make the obturator element 6 integral with the interior walls of the hole 3 of the body 2 of the cup 1, in the case where it wishes to use fixing screws.

On constate dans la pratique que le cotyle selon la présente invention atteint pleinement le but ainsi que les objets exposés ci-dessus, dans la mesure où il permet d'être indifféremment utilisé soit avec des vis soit sans vis de fixation.  It is found in practice that the acetabulum according to the present invention fully achieves the object as well as the objects exposed above, insofar as it makes it possible to be used either with screws or without fixing screws.

Le cotyle ainsi conçu est susceptible de subir de nombreuses modifications et variantes, rentrant toutes à l'intérieur de l'étendue du concept inventif ; en outre, tous les détails peuvent être remplacés par d'autres éléments techniquement équivalents.  The cup thus conceived is liable to undergo numerous modifications and variants, all falling within the scope of the inventive concept; furthermore, all details may be replaced by other technically equivalent elements.

Dans la pratique, les matériaux utilisés,  In practice, the materials used,

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ainsi que les dimensions et les formes associées, pourront être quelconques en fonction des exigences et de l'état de la technique. as well as the dimensions and the associated shapes, may be any according to the requirements and the state of the art.

Claims (6)

REVENDICATIONS 1. Structure de cotyle (1) à universalité élevée, en particulier pour l'utilisation dans le traitement des pathologies de la hanche, comprenant un corps (2) intérieurement creux et doté d'au moins un trou (3) sur la surface extérieure, susceptible de permettre le passage d'une vis associée, pour la fixation dudit cotyle (1) à l'intérieur du siège dudit cotyle (1) dans le bassin du patient, caractérisée en ce qu'elle comprend un élément obturateur (6) susceptible d'obturer ledit trou (3) au nombre d'au moins un, ledit élément obturateur (6) étant temporairement solidaire des parois intérieures dudit trou (3) et relié de façon amovible audites parois. 1. High universality cup structure (1), in particular for use in the treatment of hip pathologies, comprising an internally hollow body (2) and provided with at least one hole (3) on the external surface , capable of allowing the passage of an associated screw, for fixing said cup (1) inside the seat of said cup (1) in the patient's pelvis, characterized in that it comprises a obturating element (6) capable of closing said hole (3) at least one, said shutter element (6) being temporarily integral with the interior walls of said hole (3) and detachably connected to said walls. 2. Structure de cotyle (1) selon la revendication 1, caractérisée en ce que ledit élément obturateur (6) est constitué par un corps cylindrique intérieurement creux dont la surface extérieure est solidaire des parois intérieures dudit trou (3) au nombre d'au moins un.  2. acetabulum structure (1) according to claim 1, characterized in that said obturator element (6) is constituted by an internally hollow cylindrical body whose outer surface is integral with the inner walls of said hole (3) at least minus one. 3. Structure de cotyle (1) selon la revendication 1, caractérisée en ce que ledit corps cylindrique est fermé à une extrémité destinée à être tournée vers la surface extérieure dudit corps hémisphérique (2) et ouvert à l'extrémité opposée, la cavité (7) dudit corps cylindrique de l'élément obturateur (6) étant borgne.  3. acetabulum structure (1) according to claim 1, characterized in that said cylindrical body is closed at one end intended to be turned towards the external surface of said hemispherical body (2) and open at the opposite end, the cavity ( 7) of said cylindrical body of the shutter element (6) being blind. 4. Structure de cotyle (1) selon l'une quelconque des revendications 1 à 3, caractérisée en ce que ledit trou (3) au nombre d'au moins un est doté de parois intérieures conformées selon une partie de sphère (4) dans la partie initiale, pour loger de façon à ce qu'elle y rentre entièrement la tête de la vis de fixation et un cône (5) dans la partie suivante, destiné à rejoindre la surface extérieure dudit corps (2) du cotyle (1).  4. acetabulum structure (1) according to any one of claims 1 to 3, characterized in that said hole (3) at least one in number is provided with internal walls shaped according to a part of a sphere (4) in the initial part, to accommodate so that it fully enters the head of the fixing screw and a cone (5) in the following part, intended to join the external surface of said body (2) of the acetabulum (1) . 5. Structure de cotyle (1) selon la  5. Cup structure (1) according to the <Desc/Clms Page number 10><Desc / Clms Page number 10> revendication 4, caractérisée en ce que la région de transition entre la région sphérique (4) et la région conique (5) dudit trou (3) au nombre d'au moins un est la région de raccordement dudit élément obturateur (6), lesdites régions de raccordement étant constituées par des parois minces susceptibles d'être rompues en agissant sur l'élément obturateur (6) pour détacher ledit élément obturateur (6) des parois intérieures dudit trou (3) au nombre d'au moins un.  claim 4, characterized in that the transition region between the spherical region (4) and the conical region (5) of said at least one hole (3) is the connection region of said obturator element (6), said connecting regions being constituted by thin walls capable of being broken by acting on the obturating element (6) to detach said obturating element (6) from the interior walls of said hole (3) at least one in number. 6. Structure de cotyle (1) selon l'une quelconque des revendications 2 à 5, caractérisée en ce que qu'elle comprend un deuxième élément obturateur (9) susceptible d'être engagé dans la cavité (7) dudit élément obturateur (6) solidaire aux parois intérieures dudit trou (3), et obturer les espaces adjacents audit élément obturateur (6) solidaire des parois intérieures dudit trou (3) . 6. acetabulum structure (1) according to any one of claims 2 to 5, characterized in that it comprises a second obturator element (9) capable of being engaged in the cavity (7) of said obturator element (6 ) integral with the interior walls of said hole (3), and closing off the spaces adjacent to said shutter element (6) integral with the interior walls of said hole (3).
FR0212784A 2002-04-15 2002-10-15 Cotyle structure for treating hip complaints has one or more fixing holes with temporary plugs that can be broken off prior to use Pending FR2838329A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1020390A NL1020390C1 (en) 2002-04-15 2002-04-15 Hip socket construction intended for use in the treatment of hip abnormalities.

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FR2838329A1 true FR2838329A1 (en) 2003-10-17

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EP1728489A1 (en) * 2005-06-03 2006-12-06 Mathys AG Bettlach Hip endoprosthesis with acetabular having sealed bores
WO2010023447A1 (en) * 2008-09-01 2010-03-04 Biomet Uk Limited A prosthetic bearing component
EP2384723A1 (en) 2010-05-07 2011-11-09 Jossi Holding AG Method for producing an implant and implant with at least one predetermined breaking line
EP2520254A1 (en) * 2011-05-04 2012-11-07 Jossi Holding AG Instrument for detecting an engagement means on an implant
US8535384B2 (en) 2011-08-10 2013-09-17 Biomet Manufacturing, Llc Acetabular screw hole covers with porous coating
EP3551131B1 (en) * 2016-12-12 2022-04-13 Zimmer, Inc. Implants with frangible fastener port plugs

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EP1728489A1 (en) * 2005-06-03 2006-12-06 Mathys AG Bettlach Hip endoprosthesis with acetabular having sealed bores
WO2010023447A1 (en) * 2008-09-01 2010-03-04 Biomet Uk Limited A prosthetic bearing component
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EP2520254A1 (en) * 2011-05-04 2012-11-07 Jossi Holding AG Instrument for detecting an engagement means on an implant
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EP3551131B1 (en) * 2016-12-12 2022-04-13 Zimmer, Inc. Implants with frangible fastener port plugs

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