FR2893837A1 - Hip implant set for co-operating with acetabulam of pelvis bone, has hip implants each having rod, neck and head, where absolute value of coordinates of center of head increases with value of thickness of rod taken along one of axes - Google Patents
Hip implant set for co-operating with acetabulam of pelvis bone, has hip implants each having rod, neck and head, where absolute value of coordinates of center of head increases with value of thickness of rod taken along one of axes Download PDFInfo
- Publication number
- FR2893837A1 FR2893837A1 FR0512016A FR0512016A FR2893837A1 FR 2893837 A1 FR2893837 A1 FR 2893837A1 FR 0512016 A FR0512016 A FR 0512016A FR 0512016 A FR0512016 A FR 0512016A FR 2893837 A1 FR2893837 A1 FR 2893837A1
- Authority
- FR
- France
- Prior art keywords
- head
- thickness
- center
- coordinates
- rod
- 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
Links
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
- A61F2/36—Femoral heads ; Femoral endoprostheses
-
- 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
- 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
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of 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
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
-
- 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
- A61F2002/3625—Necks
-
- 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
- A61F2002/3625—Necks
- A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00011—Metals or alloys
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00179—Ceramics or ceramic-like structures
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
Description
La présente invention concerne un jeu de prothèses de hanche. De façonThe present invention relates to a set of hip prostheses. In a way
classique, une prothèse de hanche comporte une tige, destinée à être introduite dans l'os du fémur, qui est prolongée par un col, lui-même terminé par une tête. Cette prothèse est propre à coopérer avec une partie cotyloïdienne destinée à être fixée sur l'os du bassin, qui comporte une cupule métallique en forme de demi-sphère. Cette dernière assure le logement d'un insert, par exemple en matière plastique ou en céramique, dans lequel vient s'articuler la tête précitée. Lors de la pose d'une telle prothèse, le chirurgien implante d'une part la tige à l'intérieur d'une cavité creusée longitudinalement dans l'os du fémur. Par ailleurs, la partie cotyloïdienne évoquée ci-dessus se trouve reçue dans une cavité globalement hémisphérique, creusée dans l'os du bassin. Ceci étant précisé, l'invention vise à proposer un jeu de prothèses assurant une adaptation optimale à différentes 20 morphologies de patients. A cet effet, elle a pour objet un jeu de prothèses de hanche, dans lequel chaque prothèse comprend une tige, un col, ainsi qu'une tête, caractérisé en ce que, dans un repère dont un premier axe correspond à l'axe principal de 25 la tige et dont un second axe correspond à l'axe perpendiculaire audit premier axe passant par la zone d'appui cortical de la prothèse, la valeur absolue des coordonnées du centre de ladite tête augmente avec la valeur de l'épaisseur de la tige, prise selon ledit second 30 axe. Selon d'autres caractéristiques de l'invention : - il est prévu trois valeurs de l'ordonnée pour le centre de la tête, en fonction de la valeur de l'épaisseur, ainsi que trois valeurs de l'abscisse dudit centre, pour chaque valeur de l'ordonnée. Si l'épaisseur est inférieure à 26 mm, les coordonnées du centre de la tête sont (45,95 mm, 28 mm) si l'épaisseur est comprise entre 26 et 31 mm, les coordonnées du centre de la tête sont (49,50 mm, 29,8 mm) et si l'épaisseur est supérieure à 31 mm, les coordonnées du centre de la tête sont (53,50 mm, 31,60 mm). - Si l'épaisseur est inférieure à 26 mm, les coordonnées du centre de la tête sont (46,55 mm, 28 mm) si l'épaisseur est comprise entre 26 et 31 mm, les coordonnées du centre de la tête sont (50,25 mm, 29,8 mm) et si l'épaisseur est supérieure à 31 mm, les coordonnées du centre de la tête sont (54,20 mm, 31,60 mm). Si l'épaisseur est inférieure à 26 mm, les coordonnées du centre de la tête sont (47,15 mm, 28 mm) si l'épaisseur est comprise entre 26 et 31 mm, les coordonnées du centre de la tête sont (50,90 mm, 29,8 mm) et - si l'épaisseur est supérieure à 31 mm, les coordonnées du centre de la tête sont (55,00 mm, 31,60 mm). Chaque prothèse est pourvue d'une collerette, et la dimension principale de ladite collerette augmente avec la valeur de l'épaisseur de la tige ; si l'épaisseur est inférieure à 26 mm, la dimension principale de la collerette est égale à 7,2 mm, - si l'épaisseur est comprise entre 26 et 31 mm, la dimension principale de la collerette est égale à 8,2 mm ; et si l'épaisseur est supérieure à 31 mm, la dimension principale de la collerette est égale à 9,2 mm. In conventional practice, a hip prosthesis comprises a rod intended to be introduced into the femur bone, which is extended by a collar, itself terminated by a head. This prosthesis is adapted to cooperate with an acetabulum portion intended to be fixed on the pelvic bone, which comprises a metal cup in the shape of a hemisphere. The latter ensures the housing of an insert, for example plastic or ceramic, in which is articulated the aforementioned head. During the installation of such a prosthesis, the surgeon implants on the one hand the stem inside a cavity hollowed longitudinally in the bone of the femur. Moreover, the cotyloid part mentioned above is received in a globally hemispherical cavity, hollowed out in the pelvic bone. That being said, the invention aims to provide a set of prostheses ensuring optimal adaptation to different morphologies of patients. For this purpose, it relates to a set of hip prostheses, wherein each prosthesis comprises a stem, a neck and a head, characterized in that, in a reference frame, a first axis corresponds to the main axis of the rod and of which a second axis corresponds to the axis perpendicular to said first axis passing through the cortical bearing zone of the prosthesis, the absolute value of the coordinates of the center of said head increases with the value of the thickness of the rod, taken along said second axis. According to other characteristics of the invention: - three values of the ordinate for the center of the head, as a function of the value of the thickness, as well as three values of the abscissa of said center, for each value of the ordinate. If the thickness is less than 26 mm, the coordinates of the center of the head are (45.95 mm, 28 mm) if the thickness is between 26 and 31 mm, the coordinates of the center of the head are (49, 50 mm, 29.8 mm) and if the thickness is greater than 31 mm, the coordinates of the center of the head are (53.50 mm, 31.60 mm). - If the thickness is less than 26 mm, the coordinates of the center of the head are (46.55 mm, 28 mm) if the thickness is between 26 and 31 mm, the coordinates of the center of the head are (50 , 25 mm, 29.8 mm) and if the thickness is greater than 31 mm, the coordinates of the center of the head are (54.20 mm, 31.60 mm). If the thickness is less than 26 mm, the coordinates of the center of the head are (47.15 mm, 28 mm) if the thickness is between 26 and 31 mm, the coordinates of the center of the head are (50, 90 mm, 29.8 mm) and - if the thickness is greater than 31 mm, the coordinates of the center of the head are (55.00 mm, 31.60 mm). Each prosthesis is provided with a collar, and the main dimension of said collar increases with the value of the thickness of the stem; if the thickness is less than 26 mm, the main dimension of the flange is equal to 7.2 mm, - if the thickness is between 26 and 31 mm, the main dimension of the flange is equal to 8.2 mm ; and if the thickness is greater than 31 mm, the main dimension of the flange is equal to 9.2 mm.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, sur lesquels : - la figure 1 est une vue en perspective illustrant une prothèse de hanche appartenant à un jeu de prothèses conforme à l'invention ; - la figure 2 est une vue de face, illustrant cette prothèse de hanche ainsi qu'un repère orthogonal qui lui est associé ; et - la figure 3 est une vue de face, analogue à la figure 2, illustrant une variante de réalisation d'une prothèse de hanche appartenant à un jeu de prothèses conforme à l'invention. The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which: FIG. 1 is a perspective view illustrating a hip prosthesis belonging to to a set of prostheses according to the invention; FIG. 2 is a front view illustrating this hip prosthesis and an orthogonal reference mark associated with it; and FIG. 3 is a front view, similar to FIG. 2, illustrating an alternative embodiment of a hip prosthesis belonging to a set of prostheses according to the invention.
La figure 1 illustre une prothèse de hanche, appartenant à un jeu de prothèses conforme à l'invention. De façon connue en soi, cette prothèse, désignée dans son ensemble par la référence 10, comprend une tige 12, d'axe longitudinal Y'-Y, destinée à être logée et retenue dans une cavité diaphysaire, creusée dans le canal médullaire d'un fémur non représenté. L'extrémité supérieure de tige se prolonge, par un col 14, selon une direction inclinée par rapport à l'axe Y'-Y précité. Enfin, une tête sphérique tronquée 16, d'axe de symétrie A-A, est prévue à l'extrémité libre du col précité 14. La prothèse 10 est destinée à coopérer, de façon connue en soi, avec un cotyle 18, réalisé sous forme d'une cupule métallique sensiblement hémisphérique, propre à être solidarisée à l'os du bassin. A titre de variantes, on peut prévoir que le cotyle est réalisé de façon monobloc, ou bien est constitué de plusieurs composants. A l'intérieur de cette cupule peut être logé, de manière fixe, un insert 20 également hémisphérique, 4 constitué d'une matière plastique ou céramique. La surface intérieure de l'insert 20 est conformée de manière sensiblement complémentaire à la surface extérieure de la tête 16, de sorte que cette dernière s'articule à la manière d'une rotule par rapport à l'insert 20 et au cotyle 18. La figure 2 illustre la prothèse 10, représentée à la figure 1, qui est désormais vue de face. On retrouve la tige 12, ainsi que le col 14, alors que la tête 16 n'est pas représentée. Sur cette figure 2, on note C le centre de cette tête. Sur cette figure 2, on retrouve également l'axe principal de la tige 12, à savoir Y'-Y, ainsi qu'un autre axe X'-X, perpendiculaire à cet axe Y'-Y et passant par la zone 22 d'appui cortical de la prothèse. Cette zone 22 correspond de façon classique à la limite de la partie intramédullaire de la prothèse. Ces deux axes X'-X et Y'-Y forment un repère orthogonal, dans lequel on peut définir les coordonnées des différents éléments de la prothèse 10. Ainsi, on note en particulier x et y l'abscisse et l'ordonnée du centre C de la tête. Selon l'invention, ce centre C est sensiblement confondu avec celui du cotyle reconstruit, qui correspond de façon connue en soi au centre du cotyle prothétique, une fois implanté. Les coordonnées de ce centre C augmentent par conséquent avec la taille de la prothèse, qui est définie par l'épaisseur e de la tige prise selon l'axe X'-x, à savoir pour une ordonnée nulle. Ceci signifie que, plus la valeur de l'épaisseur e est élevée, plus la valeur des coordonnées (x, y) est élevée. De façon avantageuse, il est possible d'affecter un nombre restreint de valeur à ces coordonnées, en fonction des différentes valeurs de e. Figure 1 illustrates a hip prosthesis belonging to a set of prostheses according to the invention. In a manner known per se, this prosthesis, designated as a whole by the reference 10, comprises a rod 12, of longitudinal axis Y'-Y, intended to be housed and retained in a diaphyseal cavity, hollowed in the medullary canal of a femur not shown. The upper end of the rod is extended by a neck 14, in a direction inclined relative to the aforementioned axis Y'-Y. Finally, a truncated spherical head 16, of axis of symmetry AA, is provided at the free end of the aforementioned neck 14. The prosthesis 10 is intended to cooperate, in a manner known per se, with an acetabulum 18, made in the form of a a substantially hemispherical metal cup, adapted to be secured to the pelvic bone. As variants, it can be provided that the acetabulum is made integrally, or consists of several components. Inside this cup can be housed, in a fixed manner, an insert 20 also hemispherical, 4 made of a plastic or ceramic material. The inner surface of the insert 20 is shaped substantially complementary to the outer surface of the head 16, so that the latter is articulated in the manner of a patella relative to the insert 20 and the acetabulum 18. Figure 2 illustrates the prosthesis 10, shown in Figure 1, which is now seen from the front. We find the rod 12, as well as the neck 14, while the head 16 is not shown. In this figure 2, C is the center of this head. In this figure 2, there is also the main axis of the rod 12, namely Y'-Y, and another axis X'-X, perpendicular to this axis Y'-Y and passing through the zone 22 d cortical support of the prosthesis. This zone 22 corresponds in a conventional way to the limit of the intramedullary portion of the prosthesis. These two axes X'-X and Y'-Y form an orthogonal coordinate system, in which the coordinates of the various elements of the prosthesis 10 can be defined. Thus, in particular x and y are the abscissa and the ordinate of the center. C of the head. According to the invention, this center C is substantially coincident with that of the reconstructed acetabulum, which corresponds in known manner to the center of the prosthetic acetabulum, once implanted. The coordinates of this center C therefore increase with the size of the prosthesis, which is defined by the thickness e of the rod taken along the axis X'-x, namely for a zero ordinate. This means that the higher the value of the thickness e, the higher the value of the coordinates (x, y). Advantageously, it is possible to assign a small number of values to these coordinates, depending on the different values of e.
Ainsi, il est par exemple possible de prévoir trois valeurs pour l'ordonnée y du centre C de la tête, selon que la valeur de l'épaisseur e est faible, moyenne ou élevée. Par ailleurs, pour chaque valeur de cette ordonnée y, il est possible de prévoir plusieurs valeurs de l'abscisse x, par exemple trois valeurs différentes. Ainsi, selon un premier mode de réalisation de l'invention . - si e est inférieure à 26 mm, (x11, y1) = (45,95 10 mm, 28 mm) - si e est comprise entre 26 et 31 mm (X21, Y2) = (49,50 mm, 29,8 mm) et - si e est supérieure à 31 mm, (x31, y3) = (53,50 mm, 31,6 mm) 15 Selon un second mode de réalisation de l'invention : - si e est inférieure à 26 mm, (x12, y1) = (46,55 mm, 28 mm) (x22, Y2) _ 25 mm, 28 mm) - s_L e est comprise entre 26 et 31 mm, (x23, Y2) = (50,90 mm, 29,80 mm) ; et - si e est supérieure à 31 mm, (x33, y3) = (55,00 mm, 31,6 mm). Thus, it is for example possible to provide three values for the y-coordinate of the center C of the head, depending on whether the value of the thickness e is low, medium or high. Moreover, for each value of this ordinate y, it is possible to provide several values of the abscissa x, for example three different values. Thus, according to a first embodiment of the invention. - if e is less than 26 mm, (x11, y1) = (45.95 mm, 28 mm) - if e is between 26 and 31 mm (X21, Y2) = (49.50 mm, 29.8 mm) and - if e is greater than 31 mm, (x31, y3) = (53.50 mm, 31.6 mm) According to a second embodiment of the invention: - if e is less than 26 mm, (x12, y1) = (46.55 mm, 28 mm) (x22, Y2) _ 25 mm, 28 mm) - s_L e is between 26 and 31 mm, (x23, Y2) = (50.90 mm, 29.80 mm); and - if e is greater than 31 mm, (x33, y3) = (55.00 mm, 31.6 mm).
30 La figure 3 illustre une variante de réalisation de la prothèse 10. Cette dernière diffère de celle représentée à la figure 2, en ce qu'elle est pourvue d'une collerette 24, destinée de façon connue en soi à permettre à la prothèse de prendre appui sur l'os cortical. 20 - si e est comprise entre 26 et 31 mm, (50,25 mm, 29,8 mm) ; et - si e est supérieure à 31 mm, (x32, y3) = (54,20 mm, 31,6 mm). Enfin, selon une troisième variante de réalisation de l'invention . - si e est inférieure à 26 mm, (x13, y1) = (47,15 On note 1 la longueur, ou dimension principale de cette collerette 24. De façon avantageuse, la valeur de cette longueur 1 augmente avec l'épaisseur e de la tige 12. A cet égard, il est possible de prévoir par exemple trois valeurs de 1, en fonction des différentes épaisseurs - si e - si e 8,2 mm ;est inférieure à 26 mm alors 1 = 7,2 mm ; est comprise entre 26 et 31 mm, alors 1 = - si e est supérieure à 31, alors 1 = 9,2 mm.FIG. 3 illustrates an alternative embodiment of the prosthesis 10. The latter differs from that shown in FIG. 2, in that it is provided with a collar 24, intended in a manner known per se to allow the prosthesis to take support on the cortical bone. If e is between 26 and 31 mm, (50.25 mm, 29.8 mm); and - if e is greater than 31 mm, (x32, y3) = (54.20 mm, 31.6 mm). Finally, according to a third embodiment of the invention. - If e is less than 26 mm, (x13, y1) = (47,15 Note 1 the length, or principal dimension of this collar 24. Advantageously, the value of this length 1 increases with the thickness e of In this regard, it is possible to provide for example three values of 1, depending on the different thicknesses - if e - if e 8.2 mm, is less than 26 mm then 1 = 7.2 mm; between 26 and 31 mm, then 1 = - if e is greater than 31, then 1 = 9.2 mm.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0512016A FR2893837B1 (en) | 2005-11-28 | 2005-11-28 | GAME OF HIP PROSTHESES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0512016A FR2893837B1 (en) | 2005-11-28 | 2005-11-28 | GAME OF HIP PROSTHESES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2893837A1 true FR2893837A1 (en) | 2007-06-01 |
| FR2893837B1 FR2893837B1 (en) | 2008-08-08 |
Family
ID=37076111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0512016A Expired - Fee Related FR2893837B1 (en) | 2005-11-28 | 2005-11-28 | GAME OF HIP PROSTHESES |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2893837B1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0477113A1 (en) * | 1990-09-18 | 1992-03-25 | Medinov Sa | Prosthetic assembly for hip joint |
| US5725592A (en) * | 1996-10-29 | 1998-03-10 | Hayes Medical, Inc. | Modular prosthesis having neck component connected to stem component through cavity in body component |
| FR2756727A1 (en) * | 1996-12-10 | 1998-06-12 | Orthotechnique | Femoral hip prosthesis |
| FR2784576A1 (en) * | 1998-10-16 | 2000-04-21 | Medical Solution | Femoral prosthesis family has at least two sub-families with cervico- diaphysis angle varying from one sub-family to another |
| EP1062923A2 (en) * | 1999-06-23 | 2000-12-27 | Plus Endoprothetik Ag | Hip joint endoprostheses system |
| FR2844994A1 (en) * | 2002-09-27 | 2004-04-02 | Medacta Int Sa | Hip joint prosthesis nail has defined angles between areas of shank and neck in two planes |
| FR2849770A1 (en) * | 2003-01-13 | 2004-07-16 | Buttet Michel De | Hip joint prosthesis for neck fracture, has femoral implant associated to mark of lateralization, and mark defining lateral height/medial height of neck |
-
2005
- 2005-11-28 FR FR0512016A patent/FR2893837B1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0477113A1 (en) * | 1990-09-18 | 1992-03-25 | Medinov Sa | Prosthetic assembly for hip joint |
| US5725592A (en) * | 1996-10-29 | 1998-03-10 | Hayes Medical, Inc. | Modular prosthesis having neck component connected to stem component through cavity in body component |
| FR2756727A1 (en) * | 1996-12-10 | 1998-06-12 | Orthotechnique | Femoral hip prosthesis |
| FR2784576A1 (en) * | 1998-10-16 | 2000-04-21 | Medical Solution | Femoral prosthesis family has at least two sub-families with cervico- diaphysis angle varying from one sub-family to another |
| EP1062923A2 (en) * | 1999-06-23 | 2000-12-27 | Plus Endoprothetik Ag | Hip joint endoprostheses system |
| FR2844994A1 (en) * | 2002-09-27 | 2004-04-02 | Medacta Int Sa | Hip joint prosthesis nail has defined angles between areas of shank and neck in two planes |
| FR2849770A1 (en) * | 2003-01-13 | 2004-07-16 | Buttet Michel De | Hip joint prosthesis for neck fracture, has femoral implant associated to mark of lateralization, and mark defining lateral height/medial height of neck |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2893837B1 (en) | 2008-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0127503B1 (en) | Shoulder prosthesis | |
| FR2652498A1 (en) | Modular assembly for a shoulder prosthesis | |
| FR2663838A1 (en) | Implant for an arthroplasty, in particular of a glenoid cavity | |
| FR2580170A1 (en) | FEMALE HEAD FOR HIP PROSTHESIS | |
| WO2004071332A2 (en) | Implant and articular prosthesis comprising said implant | |
| EP2276427B1 (en) | Trapezio-metacarpal joint prosthesis | |
| FR2700947A1 (en) | Prosthetic femoral implant for dysplastic hip | |
| EP0611225B1 (en) | Femoral stem for hip prothesis | |
| FR2786390A1 (en) | Corrective cotyle for treatment of hip pathologies comprises flattened hemispherical shell extended on one side and fitted with optional insert | |
| FR2897527A1 (en) | Cup for cotyloidal implant, has tapered part and recess cooperating with outer and inner surfaces of different types of inserts by friction and by detent, respectively, where cap is made of osteo-conductor metal such as titanium alloy | |
| FR2823662A3 (en) | TOTAL HIP PROSTHESIS | |
| FR2889444A1 (en) | Anatomic femoral rod for hip prosthesis, has arcs constituting respective median section and plane of diaphyseal and metaphyseal parts constituting common tangent forming angle equal to eight degrees with respect to sagittal plane | |
| FR2893837A1 (en) | Hip implant set for co-operating with acetabulam of pelvis bone, has hip implants each having rod, neck and head, where absolute value of coordinates of center of head increases with value of thickness of rod taken along one of axes | |
| FR2551655A1 (en) | Cup for articular prosthesis, in particular for hip prosthesis | |
| FR3004921A3 (en) | JOINT PROSTHESIS FOR SMALL BONE, CUPULE AND HEAD ARTIFULING IN THE CAVITY DELIMITED BY THIS CUPULE | |
| FR2827504A1 (en) | Hip joint cotyloid cavity reconstruction assembly comprises cruciform base, cemented metal cup and polyethylene liner | |
| FR2626169A1 (en) | Hip prosthesis | |
| FR2700686A1 (en) | Hip prosthesis acetabulum | |
| FR2628967A1 (en) | Total hip prosthesis with curved femoral rod - formed with fin on its convex side engaged in groove in medullar canal near greater trochanter | |
| FR2634642A1 (en) | Femoral prosthesis, femoral piece for such a prosthesis, and instrument for fitting the said prosthesis | |
| EP2205187A2 (en) | Femoral component for a hip prosthesis, and total hip prosthesis comprising same | |
| FR2796266A1 (en) | COTYL FOR HIP PROSTHESIS | |
| FR2681239A1 (en) | Shaft for total hip prosthesis | |
| FR2879917A1 (en) | Femoral assembly for hip prosthesis, has modular epiphysis placed angularly relative to stem to receive `medium collar` type femoral head in monoblock manner, and having, at slot, female conical bearing cooperating with male conical bearing | |
| EP0865775B1 (en) | Polyethylene implant with marker balls |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CA | Change of address |
Effective date: 20121213 |
|
| GC | Lien (pledge) constituted |
Effective date: 20130515 |
|
| PLFP | Fee payment |
Year of fee payment: 11 |
|
| RG | Lien (pledge) cancelled |
Effective date: 20160128 |
|
| PLFP | Fee payment |
Year of fee payment: 12 |
|
| TP | Transmission of property |
Owner name: CORIN LIMITED, GB Effective date: 20170619 |
|
| PLFP | Fee payment |
Year of fee payment: 13 |
|
| PLFP | Fee payment |
Year of fee payment: 15 |
|
| PLFP | Fee payment |
Year of fee payment: 16 |
|
| ST | Notification of lapse |
Effective date: 20220705 |