FR2660857A1 - Device for detachable assembly of a trial prosthetic head - Google Patents
Device for detachable assembly of a trial prosthetic head Download PDFInfo
- Publication number
- FR2660857A1 FR2660857A1 FR9004963A FR9004963A FR2660857A1 FR 2660857 A1 FR2660857 A1 FR 2660857A1 FR 9004963 A FR9004963 A FR 9004963A FR 9004963 A FR9004963 A FR 9004963A FR 2660857 A1 FR2660857 A1 FR 2660857A1
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- FR
- France
- Prior art keywords
- shaft
- stop
- locking member
- hand
- assembly
- 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
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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
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
- A61F2002/30566—Helical springs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3611—Heads or epiphyseal parts of femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3652—Connections of necks to shafts
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Prostheses (AREA)
Abstract
Description
L'invention se rapporte à un dispositif d'assemblage démontable d'une tête prothétique d'essai sur une piece fixée dans le canal ,cédulaire d'un os en vue de la préparation de la pose d'une prothese articulaire. The invention relates to a removable assembly device for a trial prosthetic head on a part fixed in the cedular canal of a bone for the preparation of the placement of an articular prosthesis.
Dans le domaine orthopédique chirurgical, il est connu de substituer aux moyens d'articulation physiologique des pièces mécaniques qui reconstituent l'articulation. In the surgical orthopedic field, it is known to substitute for the physiological articulation means mechanical parts which reconstitute the articulation.
Par exemple, dans le cas de la hanche, il est connu de remplacer, d'une part, la tête fémorale et, d'autre part, le cotyle de l'acetabulum. For example, in the case of the hip, it is known to replace, on the one hand, the femoral head and, on the other hand, the acetabulum acetabulum.
Precisement, à l'extrémité concernée du fémur, on substitue un ensemble mécanique que l'on fixe dans la cavité cédulaire przalablement aménagée. Precisely, at the relevant end of the femur, a mechanical assembly is replaced which is fixed in the previously arranged cedular cavity.
3ien entendu, l'ensemble mécanique est choisi pour comporter une tête articulaire prothétique correspondant sensiblement à celle physiologique remplacée. 3ien understood, the mechanical assembly is chosen to include a prosthetic articular head corresponding substantially to that physiological replaced.
Le chirurgien orthopédiste dispose donc d'une pluralité d'ensembles taec niques de taille et de configuration en rapport avec celles requises dans ce domaine. The orthopedic surgeon therefore has a plurality of technical sets of size and configuration in relation to those required in this field.
Pour effectuer un choix rigoureux, le chirurgien doit procéder à un certain nombre d'essais et précisément, il est connu que, sur la partie active de l'outil tel la rape qui permet d'aménager la cavité modulaire, le chirurgien puisse fixer de manière démontable, à la place du manche de l'outil, une tête articulaire d'essai. To make a rigorous choice, the surgeon must carry out a certain number of tests and precisely, it is known that, on the active part of the tool such as the rape which makes it possible to arrange the modular cavity, the surgeon can fix demountable, instead of the tool handle, a joint test head.
Dans ce domaine, il est donc connu d'utiliser une rape à manche amovible de manier telle que cette rape puisse s'engager dans le feur notamment afin de permettre
- tant le dit ajustement de l'extrémité proximale du canal médullaire
- que le port provisoire d'une tête d'essai destinée à coopérer avec le cotyle de 1 'acêtabulum ou une cupule rapportée dans celui-ci.In this area, it is therefore known to use a rape with a removable handle so that this rape can engage in the flower in particular in order to allow
- both the said adjustment of the proximal end of the medullary canal
- that the provisional wearing of a test head intended to cooperate with the acetabulum of the acetabulum or a cup inserted therein.
Pour permettre l'obtention de ce résultat, on utilise un dispositif d'assemblage démontable que l'on associe ou constitue au moins au niveau des extrémit#s coopérantes des pièces que sont la rape, le manche et la tête d'essai. To allow this result to be obtained, a dismountable assembly device is used which is associated or constitutes at least at the level of the cooperating extremities of the parts which are the rape, the handle and the test head.
En fait, le dispositif d'assemblage est surtout étudié pour permettre la transmission des efforts de coupe de l'outil et de retrait de cet outil de la cavité conformée. In fact, the assembly device is especially studied to allow the transmission of the cutting forces of the tool and of withdrawal of this tool from the shaped cavity.
Classiquement, on choisit un plan d'assemblage entre les pièces qui est au moins seyant à la direction moyenne des efforts précités (FR-A-2.575.384). Conventionally, an assembly plane is chosen between the parts which is at least fitting to the mean direction of the abovementioned forces (FR-A-2,575,384).
De manière également classique, le dispositif d'assemblage est du type fonctionnant selon une direction privilégiée notamment globalement perpendiculaire au plan d'assemblage précité. Also conventionally, the assembly device is of the type operating in a preferred direction, in particular generally perpendicular to the above-mentioned assembly plane.
Pour constituer un dispositif d'assemblage à usage médical ou industriel qui satisfait à ces critères, il est largement connu (FR-A-1.103.112) d'utiliser, d'une part, des moyens d'assemblage par emboitement local des pièces et, d'autre part, des moyens de verrouillage de cet emboitement. To constitute an assembly device for medical or industrial use which satisfies these criteria, it is widely known (FR-A-1.103.112) to use, on the one hand, means of assembly by local interlocking of the parts and, on the other hand, means for locking this socket.
Les moyens d'assemblage par emboitement comprennent, par exemple, un arbre et un alésage cylindrique qui, chacun solidaire d'une des pièces que sont l'outil et le inanche, et/ou l'outil et la tête d'essai, s'étendent sensiblement orthogonalement à des faces extrêmes d'assemblage et d'appui de ces pièces. The assembly means by interlocking comprise, for example, a shaft and a cylindrical bore which, each integral with one of the parts that are the tool and the reed, and / or the tool and the test head, s 'extend substantially orthogonally to the end faces of assembly and support of these parts.
Les moyens de verrouillage comprennent au moins une butée solidaire d'une des pièces et avec laquelle peut coopérer au moins une autre butée quant à elle portée par un organe mobile dit de verrouillage et lié à l'autre pièce. The locking means comprise at least one stop integral with one of the parts and with which at least one other stop can cooperate, which in turn is carried by a movable member called the locking member and linked to the other part.
Classiquement (FR-A-1.103.112), cet organe de verrouillage est, par rapport à la pièce à laquelle il est lie, immobilisé en translation selon la direction d'assemblage mais mobile entre au moins deux positions dont l'une dite de verrouillage dans laquelle sa butée coopère avec celle de la pièce à immobiliser et l'autre dans laquelle il libère la butée de cette pièce. Conventionally (FR-A-1.103.112), this locking member is, relative to the part to which it is linked, immobilized in translation in the direction of assembly but movable between at least two positions, one of which is called locking in which its stop cooperates with that of the part to be immobilized and the other in which it releases the stop from this part.
Dans les dispositifs d'assemblage de ce type les plus perfectionnés (FR-A-2.248.460)
- d'une part, l'organe de verrouillage est libre en translation selon sa direction de verrouillage et,
- d'autre part, il coopère avec un organe poussoir qui, quant à lui, est mobile sensible#iîent selon la direction d'assemiblage des pièces et sollicité élastiquement par un organe de rappel dans le sens ou il contraint l'organe de verrouillage vers sa position de verrouillage.In the most sophisticated assembly devices of this type (FR-A-2.248.460)
on the one hand, the locking member is free in translation in its locking direction and,
- on the other hand, it cooperates with a pusher member which, for its part, is sensitive mobile # iîent in the direction of assembly of the parts and elastically biased by a return member in the direction where it forces the locking member toward its locked position.
Cet agencement de l'organe poussoir est compatible avec la configuration d'un manche d'outil mais délicat à mettre en oeuvre sur une tête d'essai car cette dernière doit présenter une portée sphérique parfaitement dégagée. This arrangement of the pusher member is compatible with the configuration of a tool handle but difficult to implement on a test head because the latter must have a perfectly clear spherical bearing.
Un résultat que l'invention vise à obtenir est un dispositif d'assemblage démontable d'une tête prothétique d'essai qui, en étant de conception trés simple, est compatible avec un outil doté d'un dispositif d'assemblage du type précité c'est dire mettant en oeuvre d'une part, un moyen d'assemblage à emboitement à arbre et alésage et, d'autre part, un moyen de verrouillage de cet emboitement par un organe mobile entre au moins deux positions dont une dans laquelle une butée de cet organe coopère avec une butée de la pièce à immobiliser et une autre dans laquelle il libère la piece. A result which the invention aims to obtain is a removable assembly device for a prosthetic test head which, being of very simple design, is compatible with a tool provided with an assembly device of the aforementioned type c is to say implementing on the one hand, an assembly means with shaft and bore interlocking and, on the other hand, a means of locking this interlocking by a movable member between at least two positions including one in which a stop of this member cooperates with a stop of the part to be immobilized and another in which it releases the part.
A cet effet, l'invention a pour objet un dispositif d'assemblage notamment caractérisé en ce que
- d'une part, la tête sphérique est solidaire d'une des extrémités d'un arbre quant à lui guidé en rotation et au moins immobilisé en translation par rapport au sabot selon un axe déterminé et,
- d'autre part, l'arbre précité porte au moins une came qui, au moins nS aprés assemblage du sabot sur la pièce support présente son profil actif en vis à vis d'une butée de l'organe de verrouillage qui est sensiblement transversale à sa direction de déplacement, lequel profil est adapté pour, par rotation de l'arbre, dans au moins nS une position de la came, induire l'immobilisation de l'organe de verrouillage en position verrouillée et dans au moins une autre position libérer l'organe de verrouillage en position déverrouillée. To this end, the subject of the invention is an assembly device notably characterized in that
on the one hand, the spherical head is integral with one of the ends of a shaft which in turn is guided in rotation and at least immobilized in translation relative to the shoe along a determined axis and,
- On the other hand, the aforementioned shaft carries at least one cam which, at least nS after assembly of the shoe on the support part has its active profile opposite a stop of the locking member which is substantially transverse in its direction of movement, which profile is suitable for, by rotation of the shaft, in at least one cam position, inducing the immobilization of the locking member in the locked position and in at least one other released position the locking member in the unlocked position.
L'invention sera bien comprise à l'aide de la description ci-apres faite à titre d'exemple non limitatif en regard du dessin ci-annexé qui représente schématiquement
- figure 1 : une vue en coupe de l'invention selon un plan longitudinal,
- figure 2 : à plus grande échelle, une vue selon le plan
Il de la figure 1,
- figure 3 : à plus grande échelle, une vue selon le plan
III de la figure 1.The invention will be better understood with the aid of the description below given by way of nonlimiting example with regard to the attached drawing which schematically represents
- Figure 1: a sectional view of the invention along a longitudinal plane,
- Figure 2: on a larger scale, a view according to the plan
Figure 1,
- Figure 3: on a larger scale, a view according to the plan
III of Figure 1.
En se reportant au dessin, on voit un dispositif 1 d'assemblage démontable de deux pièces 2, 3 selon une direction déterminée D, l'une 2 des pièces 2, 3 étant une tête prothétique d'essai 2, l'autre pièce 3 étant un support tel une rape positionnée dans le canal medulaire 4 d'un os 5 notamment en vue de la préparation de la pose d'une prothèse articulaire complète (non représentée). Referring to the drawing, we see a device 1 for dismountable assembly of two parts 2, 3 in a determined direction D, one 2 of the parts 2, 3 being a trial prosthetic head 2, the other part 3 being a support such as a rape positioned in the medular channel 4 of a bone 5 in particular for the preparation of the installation of a complete joint prosthesis (not shown).
Le dispositif d'assemblage 1 met en oeuvre, d'une part, un moyen 6 d'assemblage démontable du type à emboitement à arbre 7 et alésage 8 et, d'autre part, un moyen 9 de verrouillage de cet emboitement par au moins un organe 10 interne à l'une des pièces et mobile entre au moins deux positions opposées 10a, lOb dont l'une 10a dite de verrouillage dans laquelle une butée 11 de cet organe coopère avec une butée 12 portée par la pièce antagoniste pour entraver le démontage et l'autre lOb dite de déverrouillage dans laquelle l'organe 10 de verrouillage libère la butée 12 de la pièce antagoniste précitée. The assembly device 1 implements, on the one hand, a removable assembly means 6 of the type with shaft socket 7 and bore 8 and, on the other hand, means 9 for locking this socket by at least a member 10 internal to one of the parts and movable between at least two opposite positions 10a, lOb including one 10a called locking in which a stop 11 of this member cooperates with a stop 12 carried by the opposing piece to impede the disassembly and the other so-called unlocking lOb in which the locking member 10 releases the stop 12 from the aforementioned counterpart.
De manière connue, l'organe de verrouillage 10 est monté libre entre ses positions opposées et au moins l'une des pièces 2, 3 précitée comporte un organe poussoir 13 pour l'actionner,lent de l'organe de verrouillage 10 au moins vers sa position verrouillée 10a. In known manner, the locking member 10 is mounted free between its opposite positions and at least one of the aforementioned parts 2, 3 comprises a push member 13 for actuating it, slowly from the locking member 10 at least towards its locked position 10a.
De tanière connue, la tête prothétique 2 et la pièce support 3 coopèrent par des surfaces d'appui 14, 15 sensiblement perpendiculaires à la direction d'assemblage. Of known den, the prosthetic head 2 and the support part 3 cooperate by bearing surfaces 14, 15 substantially perpendicular to the direction of assembly.
Tel que cela est représenté, la tête prothétique 2 d'essai comprend classiquement une sphère 16 contre saillante sur un sabot d'appui 17 qui, outre la surface d'appui 14 contre celle 15 de la pièce support comporte au moins certains des organes constitutifs du dispositif d'assemblage. As shown, the prosthetic test head 2 conventionally comprises a sphere 16 projecting against a support shoe 17 which, in addition to the support surface 14 against that 15 of the support piece comprises at least some of the constituent members of the assembly device.
Confornément à l'invention
- d'une part, la tête sphérique 16 est solidaire d'une des extrémités d'un arbre 13 quant à lui guide en rotation et au moins immobilisé en translation par rapport au sabot 17 selon un axe 13a déterminé et,
- d'autre part, l'arbre précité porte au moins une came 18 qui, au moins apres assemblage du sabot 17 sur la pièce support 3 présente son profil actif 12a en vis à vis d'une butée 17 de l'organe de verrouillage qui est sensiblement transversale à sa direction de déplacement, lequel profil est adapte pour, par rotation de l'arbre, dans au moins une position de la came, induire l'immobilisation de de l'organe de verrouillage 10 en position verrouillée 10a et dans au moins une autre position libérer l'organe de verrouillage 10 en position déverrouillée lOb.According to the invention
on the one hand, the spherical head 16 is integral with one of the ends of a shaft 13 which in turn guides in rotation and at least immobilized in translation relative to the shoe 17 along a determined axis 13a and,
- On the other hand, the aforementioned shaft carries at least one cam 18 which, at least after assembly of the shoe 17 on the support part 3 has its active profile 12a opposite a stop 17 of the locking member which is substantially transverse to its direction of movement, which profile is suitable for, by rotation of the shaft, in at least one position of the cam, inducing the immobilization of the locking member 10 in the locked position 10a and in at least one other position releasing the locking member 10 in the unlocked position 10b.
Cette particularité de l'invention permet que l'organe de verrouillage 10 puisse être actionné vers sa position verrouillée 10a ou libérée par simple rotation de la tête sphérique 16 d'essai ce qui est particulièrement pratique. This feature of the invention allows the locking member 10 to be actuated towards its locked position 10a or released by simple rotation of the spherical test head 16 which is particularly practical.
La butez 12 qui coopère avec celle 11 de l'organe de verrouillage 10 en vue d'entraver le démontage des pièces 2, 3 est constituée sur le profil 12a de la came 18 portée par l'arbre 13. The stop 12 which cooperates with that 11 of the locking member 10 in order to hinder the disassembly of the parts 2, 3 is formed on the profile 12a of the cam 18 carried by the shaft 13.
Sans que cela ne change l'invention, la butée 12 qui coopère avec celle de l'organe de verrouillage 10 en vue d'entraver le démontage des pièces 2, 3 est constituée sur l'arbre 7 du moyen 9 d'assemblage. Without this changing the invention, the stop 12 which cooperates with that of the locking member 10 in order to hinder the disassembly of the parts 2, 3 is formed on the shaft 7 of the assembly means 9.
Suivant l'invention, l'axe de rotation 13a de l'arbre 13 qui porte la tête sphérique 16 est sensiblement parallèle à la direction d'assemblage D du sabot 17 sur la pièce support 3. According to the invention, the axis of rotation 13a of the shaft 13 which carries the spherical head 16 is substantially parallel to the direction of assembly D of the shoe 17 on the support part 3.
Sur le dessin, l'axe 13a et la direction D ont être représentés confondus. In the drawing, the axis 13a and the direction D have been shown to be combined.
Selon l'invention, l'arbre 13 et le sabot 17 coopèrent en outre par le biais d'un moyen d'indexation 19 entre au moins deux positions opposées dont une dans laquelle la came 18 détermine la position de verrouillage de l'organe de verrouillage 10 et une autre dans laquelle elle libère le dit organe de verrouillage au moins suffisamment pour qu'il puisse atteindre sa position dite déverrouillée. According to the invention, the shaft 13 and the shoe 17 further cooperate by means of an indexing means 19 between at least two opposite positions, one of which in which the cam 18 determines the locking position of the locking 10 and another in which it releases said locking member at least enough so that it can reach its so-called unlocked position.
Le moyen 19 d'indexation comprend une butée 20 solidaire d'un des évents 13, 17 que sont l'arbre rotatif 13 et le sabot 17 et d'une part, cette butée 20 comprend une surface 21 arrondie destinée à coopèrer avec une surface 22 dite opposée portée par l'autre élément et qui, lors du mouvement relatif des deux éléments 13, 17, est déplacée tangentiellement et contre la surface 21 arrondie de la butée 20, cette surface 22 opposée présentant au moins deux dépressions 23, 24 au moins suffisantes pour loger partiellement la butée 20 et disposées pour indexer les deux positions opposées de l'arbre et, d'autre part, les éléments précités sont élastiquement sollicités l'un vers l'autre par un moyen 25 élastique de manière à appliquer l'une contre l'autre la surface arrondie et la surface dite opposée 22. The indexing means 19 comprises a stop 20 integral with one of the vents 13, 17 that are the rotary shaft 13 and the shoe 17 and on the one hand, this stop 20 comprises a rounded surface 21 intended to cooperate with a surface 22 said opposite carried by the other element and which, during the relative movement of the two elements 13, 17, is moved tangentially and against the rounded surface 21 of the stop 20, this opposite surface 22 having at least two depressions 23, 24 at less sufficient to partially accommodate the stop 20 and arranged to index the two opposite positions of the shaft and, on the other hand, the aforementioned elements are elastically biased towards each other by an elastic means 25 so as to apply the one against the other the rounded surface and the so-called opposite surface 22.
Dans une forme préférée de réalisation, d'une part, la surface 22 dite opposée est constitué par la face plane d'un épaulement péri phéri que prévu sur l'arbre 13 tandis que la butée dotée de la surface arrondie 22 consiste en un doigt sensiblement cylindrique solidaire du sabot 17 et oriente approximativer#nt radialement à l'arbre 13 pour coopérer par sa surface cylindrique 20 avec le dit épaulement 22 et, d'autre part, l'arbre 13 est guide en translation selon son axe de rotation et élastiquement sollicité par un organe 25 à cet effet dans le sens d'application de l'épaulement 21 sur le doigt cylindrique 20. In a preferred embodiment, on the one hand, the so-called opposite surface 22 is constituted by the flat face of a peripheral shoulder than provided on the shaft 13 while the stop provided with the rounded surface 22 consists of a finger substantially cylindrical integral with the shoe 17 and orientates approximately nt radially to the shaft 13 to cooperate by its cylindrical surface 20 with the said shoulder 22 and, on the other hand, the shaft 13 is guided in translation along its axis of rotation and elastically urged by a member 25 for this purpose in the direction of application of the shoulder 21 on the cylindrical finger 20.
Conforment à l'invention, d'une part, l'organe de verrouillage 10 porte une butée 26 dite supplémentaire qui est sensiblement opposée à celle 11 destinée à entraver le démontage de la tête prothétique 2 de son support 3 et, d'autre part, l'arbre 7 du moyen d'assemblage 6 et/ou l'arbre tournant 13 solidaire de la tête sphérique 2 et de la came 18 porte au moins une butée 27 qui est destinée à coopérer avec celle supplémentaire 26 précitée, dans la position de verrouillage 10a de l'organe 10 par la came 18 de manière à limiter le jeu selon la direction d'assemblage D entre la tête prothétique et le support 3 avec lequel elle coopère. According to the invention, on the one hand, the locking member 10 carries a so-called additional stop 26 which is substantially opposite to that 11 intended to hinder the disassembly of the prosthetic head 2 from its support 3 and, on the other hand , the shaft 7 of the assembly means 6 and / or the rotating shaft 13 integral with the spherical head 2 and the cam 18 carries at least one stop 27 which is intended to cooperate with the additional one 26 above, in the position for locking 10a of the member 10 by the cam 18 so as to limit the clearance in the direction of assembly D between the prosthetic head and the support 3 with which it cooperates.
On notera que pour faciliter la lecture du dessin un espace important a toutefois ete représenté entre les diverses butées précitées. Note that to facilitate reading of the drawing, a large space has however been shown between the various abovementioned stops.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9004963A FR2660857B1 (en) | 1990-04-11 | 1990-04-11 | DEVICE FOR ASSEMBLING A PROSTHETIC TEST HEAD. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9004963A FR2660857B1 (en) | 1990-04-11 | 1990-04-11 | DEVICE FOR ASSEMBLING A PROSTHETIC TEST HEAD. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2660857A1 true FR2660857A1 (en) | 1991-10-18 |
| FR2660857B1 FR2660857B1 (en) | 1997-12-12 |
Family
ID=9395862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9004963A Expired - Fee Related FR2660857B1 (en) | 1990-04-11 | 1990-04-11 | DEVICE FOR ASSEMBLING A PROSTHETIC TEST HEAD. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2660857B1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2743492A1 (en) * | 1996-01-15 | 1997-07-18 | Landanger Landos | GAME OF HUMERAL HEAD PROSTHESES |
| FR2796267A1 (en) * | 1999-07-13 | 2001-01-19 | Protheos Ind | Assembly neck for femoral prosthesis has pins on neck engaging bores in end of medullary nail |
| EP1234558A3 (en) * | 1997-06-27 | 2002-09-11 | Johnson & Johnson Professional, Inc. | Modular hip trial for long stems |
| EP1410771A3 (en) * | 2002-09-30 | 2005-11-09 | DePuy Products, Inc. | Modular trial mechanism |
| DE102008030260A1 (en) * | 2008-06-18 | 2009-12-24 | Aesculap Ag | Modular sample implant system for use in orthopedics, particularly in hip endoprosthetics, comprises sample implant, which has two sample implant portions |
| DE102008030261A1 (en) * | 2008-06-18 | 2009-12-24 | Aesculap Ag | Modular trial implant system |
| DE102015121658A1 (en) * | 2015-12-11 | 2017-06-14 | Aesculap Ag | Artificial joint implant and hip joint endoprosthesis |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8968411B2 (en) | 2009-12-17 | 2015-03-03 | Zimmer, Inc. | Modular elbow prosthesis |
| US8936647B2 (en) | 2012-06-22 | 2015-01-20 | Zimmer, Inc. | Elbow prosthesis |
| US10201374B2 (en) | 2012-06-22 | 2019-02-12 | Zimmer, Inc. | Assembly tool for a prosthesis |
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|---|---|---|---|---|
| US4306550A (en) * | 1980-02-06 | 1981-12-22 | Minnesota Mining And Manufacturing Company | Combination including femoral rasp and calcar facing reamer |
| US4587964A (en) * | 1985-02-05 | 1986-05-13 | Zimmer, Inc. | Rasp tool |
| FR2575384A1 (en) * | 1984-12-28 | 1986-07-04 | Hummer Jacques | Femoral prosthesis and corresponding accessory |
| US4765328A (en) * | 1987-08-10 | 1988-08-23 | Osteonics Corp. | Surgical instrument handle coupling |
| WO1989004238A1 (en) * | 1987-11-06 | 1989-05-18 | Chevalier Ag | Handle with coupling and interchangeable tool for coupling with same |
-
1990
- 1990-04-11 FR FR9004963A patent/FR2660857B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306550A (en) * | 1980-02-06 | 1981-12-22 | Minnesota Mining And Manufacturing Company | Combination including femoral rasp and calcar facing reamer |
| FR2575384A1 (en) * | 1984-12-28 | 1986-07-04 | Hummer Jacques | Femoral prosthesis and corresponding accessory |
| US4587964A (en) * | 1985-02-05 | 1986-05-13 | Zimmer, Inc. | Rasp tool |
| US4765328A (en) * | 1987-08-10 | 1988-08-23 | Osteonics Corp. | Surgical instrument handle coupling |
| WO1989004238A1 (en) * | 1987-11-06 | 1989-05-18 | Chevalier Ag | Handle with coupling and interchangeable tool for coupling with same |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2743492A1 (en) * | 1996-01-15 | 1997-07-18 | Landanger Landos | GAME OF HUMERAL HEAD PROSTHESES |
| WO1997025943A1 (en) * | 1996-01-15 | 1997-07-24 | Depuy France | Set of humeral head prostheses |
| EP1234558A3 (en) * | 1997-06-27 | 2002-09-11 | Johnson & Johnson Professional, Inc. | Modular hip trial for long stems |
| FR2796267A1 (en) * | 1999-07-13 | 2001-01-19 | Protheos Ind | Assembly neck for femoral prosthesis has pins on neck engaging bores in end of medullary nail |
| EP1410771A3 (en) * | 2002-09-30 | 2005-11-09 | DePuy Products, Inc. | Modular trial mechanism |
| US7273499B2 (en) | 2002-09-30 | 2007-09-25 | Depuy Products, Inc. | Modular trial mechanism |
| US7828851B2 (en) | 2002-09-30 | 2010-11-09 | Depuy Products, Inc. | Modular trial mechanism |
| DE102008030260A1 (en) * | 2008-06-18 | 2009-12-24 | Aesculap Ag | Modular sample implant system for use in orthopedics, particularly in hip endoprosthetics, comprises sample implant, which has two sample implant portions |
| DE102008030261A1 (en) * | 2008-06-18 | 2009-12-24 | Aesculap Ag | Modular trial implant system |
| DE102015121658A1 (en) * | 2015-12-11 | 2017-06-14 | Aesculap Ag | Artificial joint implant and hip joint endoprosthesis |
| US10856991B2 (en) | 2015-12-11 | 2020-12-08 | Aesculap Ag | Artificial joint implant and hip joint endoprosthesis |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2660857B1 (en) | 1997-12-12 |
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| TP | Transmission of property | ||
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