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FR2651674A1 - Total hip prosthesis (type C.B.II) - Google Patents

Total hip prosthesis (type C.B.II) Download PDF

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Publication number
FR2651674A1
FR2651674A1 FR8912066A FR8912066A FR2651674A1 FR 2651674 A1 FR2651674 A1 FR 2651674A1 FR 8912066 A FR8912066 A FR 8912066A FR 8912066 A FR8912066 A FR 8912066A FR 2651674 A1 FR2651674 A1 FR 2651674A1
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FR
France
Prior art keywords
cup
fins
fenestrated
trochanteric
anchored
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8912066A
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French (fr)
Other versions
FR2651674B1 (en
Inventor
Bolze Chantal
Jeanine
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Individual
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Individual
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Publication date
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Priority to FR8912066A priority Critical patent/FR2651674B1/en
Publication of FR2651674A1 publication Critical patent/FR2651674A1/en
Application granted granted Critical
Publication of FR2651674B1 publication Critical patent/FR2651674B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/34—Acetabular cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • 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
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
    • A61F2002/30845—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes with cutting edges
    • 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
    • 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
    • A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
    • 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
    • A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
    • A61F2002/3403—Polar aperture
    • 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
    • A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
    • A61F2002/3417—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface the outer shell having protrusions on meridian lines, e.g. equidistant fins or wings around the equatorial zone
    • 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
    • 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
    • A61F2002/365—Connections of heads to 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
    • A61F2/3662—Femoral shafts
    • A61F2002/3678—Geometrical features
    • A61F2002/368—Geometrical features with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft
    • 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
    • A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium

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

Invention relating to a total hip prosthesis with a main vertical axis and with special femoral fixation by means of a cylindro-conical shaft, this centromedullary fixation being complemented by two slotted wings for anchoring of the greater and lesser trochanters. The acetabular fixation of the anchored cup is achieved without cement, with the aid of five bevelled and slotted wings which thus provide a biological anchoring without cement.

Description

DESCRIPTION
Prothèse totale de hanche type C.B. Il
- cervico-trochantérienne au niveau du fémur
- avec un cotyle ancré à ailettes au niveau du bassin
La présente invention concerne d'une part une tige de prothèse fémorale verticale et cylindro-conique avec un appui double cervical et trochantérien dans sa partie supérieure. D'autre part, cette prothèse est accouplée à un cotyle ancré présentant 5 ailettes de fixation au niveau de l'os du cotyle osseux. L'articulation entre ces deux parties s'effectue par une tète amovible de 32 mm de diamètre.DESCRIPTION
Total hip prosthesis type CB Il
- cervico-trochanteric at the level of the femur
- with a cup anchored to fins at the level of the pelvis
The present invention relates on the one hand to a vertical and cylindro-conical femoral prosthesis stem with a double cervical and trochanteric support in its upper part. On the other hand, this prosthesis is coupled to an anchored acetabulum having 5 attachment fins at the level of the bone acetabular bone. The articulation between these two parts is carried out by a removable head 32 mm in diameter.

10) Au niveau du fémur : l'invention concerne une tige fémorale dont l'axe x-x est vertical, de forme cylindrique présentant trois rainures longitudinales r, dont le diamètre décret régulièrement de haut en bas afin de lui donner la forme d'un cône, selon une pente de 49'. La pose de cette tige est facilitée par l'usage d'alésoirs centro-médullaires, dont les diamètres correspondent à ceux de la tige. La pénétration de celle-ci dans le fémur s'effectue aisément par un mouvement vertical, l'axe vertical x-x de la prothèse correspondant à l'axe vertical de la partie supérieure du fémur.10) At the level of the femur: the invention relates to a femoral stem whose axis xx is vertical, of cylindrical shape having three longitudinal grooves r, the diameter of which decrees regularly from top to bottom in order to give it the shape of a cone , on a slope of 49 '. The installation of this rod is facilitated by the use of central-medullary reamers, the diameters of which correspond to those of the rod. The penetration of the latter into the femur is easily effected by a vertical movement, the vertical axis x-x of the prosthesis corresponding to the vertical axis of the upper part of the femur.

De façon particulièrement intéressante, l'embase présente une partie horizontale venant se poser sur la base du col fémoral et une partie verticale venant s'appuyer en dehors sur le grand trochanter. In a particularly interesting manner, the base has a horizontal part which comes to rest on the base of the femoral neck and a vertical part which comes to rest outside on the greater trochanter.

Suivant une autre caractéristique intéressante, la présente invention présente deux ailerons
a) un large et épais (b) qui s'appuie sur l'éperon de Merkel et relie l'embase à la tige fémorale.According to another advantageous characteristic, the present invention has two fins
a) a wide and thick one (b) which rests on the spur of Merkel and connects the base to the femoral stem.

b) un plus fin (a) pour assurer un ancrage au niveau du tissus spongieux trochantérien. b) a finer (a) to ensure anchoring at the level of the trochanteric cancellous tissue.

Ces deux ailerons sont fenestrés et présentent une double caractéristique particulière
a) ils assurent un blocage complet de la rotation de la tige fémorale selon son axe vertical.These two fins are fenestrated and have a particular double characteristic
a) they completely block the rotation of the femoral stem along its vertical axis.

b) ils procurent un ancrage biologique de la partie haute de la prothèse par la régénération osseuse possible au niveau des ailerons, complètant le scellement de la tige fémorale dans le canal médullaire.  b) they provide a biological anchoring of the upper part of the prosthesis by possible bone regeneration at the level of the fins, completing the sealing of the femoral stem in the medullary canal.

- La partie supérieure de la présente invention comporte une partie
conique rattachée #à l'embase selon un angle de 450 par rapport à l'axe
vertical. Le cône peut recevoir une tête de diamètre 32 mm articulaire
avec le cotyle ancré ou une tête de diamètre correspondant à la tête du
fémur du patient, dans le cas d'une fracture du col du fémur avec conservation du cotyle osseux du patient lorsqu'il est sain.- The upper part of the present invention comprises a part
conical attached # to the base at an angle of 450 relative to the axis
vertical. The cone can receive a 32 mm diameter articular head
with the cup attached or a head with a diameter corresponding to the head of the
patient's femur, in the case of a fractured femoral neck with preservation of the patient's bony acetabulum when it is healthy.

20) Au niveau du cotyle : la présente invention concerne une cupule
de forme hémisphérique caractérisée par la présence de cinq ailerons fenes
trés : trois supérieurs (c, d, e) pour la fixation au niveau du toit du
cotyle - deux inférieurs plus petits (f et g) qui seront fixés#au niveau
des deux cornes antérieure et postérieure du cotyle. Chaque aileron est
en outre biseauté au niveau de son bord d'attaque afin d'en faciliter la pose à travers l'os.20) At the level of the acetabulum: the present invention relates to a cup
hemispherical in shape characterized by the presence of five fenestrated fins
very: three upper (c, d, e) for fixing at the roof level of the
cup - two smaller lower ones (f and g) which will be fixed # at the level
of the two anterior and posterior horns of the acetabulum. Each fin is
further beveled at its leading edge to facilitate placement across the bone.

De façon particulièrement intéressante ces cinq ailerons s'inscrivent dans un cylindre ayant le même diamètre extérieur que celui de la cupule, sauf
les trois supérieurs (c, d, e) qui dépassent ce diamètre de 3 mm.In a particularly interesting way, these five fins are part of a cylinder having the same outside diameter as that of the cup, except
the three superiors (c, d, e) which exceed this diameter by 3 mm.

Les cinq ailerons présentent entre eux un angle caractérisé de la façon suivante
- d correspond à l'axe vertical xx de la cupule
- g et f sont à 450 de part et d'autre de xx
- c est diamètralement opposé à f
- e est de la même façon opposé à g
L'ancrage s'effectue en force, après creusement préalable du cotyle et des cinq sillons d'ancrage qui seront amorcés. La fixation est effectuée sans ciment, compte-tenu de la qualité de l'ancrage ainsi établie.The five fins have an angle between them characterized as follows
- d corresponds to the vertical axis xx of the cup
- g and f are 450 on either side of xx
- c is diametrically opposite to f
- e is in the same way opposite to g
Anchoring is carried out by force, after prior digging of the acetabulum and the five anchoring grooves which will be initiated. The fixing is carried out without cement, taking into account the quality of the anchoring thus established.

De façon particulièrement intéressante, les cupules ancrées de 50 et 54 ont un même diamètre intérieur de 45 mm de façon que l'insert en poly-éthylène soit identique aux deux cupules. L'épaisseur des deux cupules ancrees est donc différente : la cupule de diamètre 50 a une épaisseur de 2,5 mm. La cupule de 54 a une épaisseur de 4,5 mm.  In a particularly interesting manner, the anchored cups of 50 and 54 have the same internal diameter of 45 mm so that the polyethylene insert is identical to the two cups. The thickness of the two anchored cups is therefore different: the diameter 50 cup has a thickness of 2.5 mm. The cup of 54 has a thickness of 4.5 mm.

La présente invention se trouve explicitée à l'aide des dessins annexés dans lesquels
- la figure 1 est une vue de face d'une tige de prothèse selon l'invention,
- la figure 2 est une vue de côté de la tige de la figure 1,
- la figure 3 est le plan en coupe passant par l'axe de la cupule ancrée, correspondant à l'ailette médiane d,
- la figure 4 est une vue supérieure de la présente invention montrant l'orientation des 5 ailettes, disposées à 450 de part et d'autre de l'axe médian,
- la figure 5 montre la cupule ancrée à ailettes selon son profil supérieur. Il détaille la pente de 600 concernant le biseau des 5 ailettes. The present invention is explained with the aid of the appended drawings in which
FIG. 1 is a front view of a prosthesis stem according to the invention,
FIG. 2 is a side view of the rod of FIG. 1,
FIG. 3 is the plane in section passing through the axis of the anchored cup, corresponding to the median fin d,
FIG. 4 is a top view of the present invention showing the orientation of the 5 fins, arranged at 450 on either side of the median axis,
- Figure 5 shows the cup anchored to fins according to its upper profile. It details the slope of 600 concerning the bevel of the 5 fins.

Claims (5)

-REVENDICATIONS- CLAIMS 10) Prothèse totale de hanche cervico-trochantérienne à tige verticale cylindro-conique caractérisée par la présence de deux ailerons fenes -trés trochantérien et trochantinien, complété par une cupule ancrée caractérisée elle-même par la présence de cinq ailerons fenestrés pour la fixation biologique sans ciment au niveau du cotyle. 10) Total cervico-trochanteric hip prosthesis with vertical cylindrical-conical rod characterized by the presence of two fenestrated fins - very trochanteric and trochanteric, completed by an anchored cup itself characterized by the presence of five fenestrated fins for biological fixation without cement at the cup. 20) Dispositif selon la revendication 1, caractérisé par la verti calité de la tige fémorale cylindro-conique dans sa forme, de pente 49' avec trois rainures sur ses flancs. 20) Device according to claim 1, characterized by the verti cality of the cylindro-conical femoral rod in its shape, of slope 49 'with three grooves on its sides. 30) Dispositif selon la revendication 1 de deux ailerons fenestrés pour la fixation dans le grand trochanter et au niveau de l'éperon de 30) Device according to claim 1 of two fenestrated fins for fixing in the greater trochanter and at the level of the spur of Merkel du fémur, ces deux dispositifs assurant un effet anti-rotation et un effet de fixation à la prothèse fémorale.Merkel of the femur, these two devices ensuring an anti-rotation effect and an effect of attachment to the femoral prosthesis. 40) Dispositif selon la revendication 1 d'ancrage de la cupule cotyloldienne par l'intermédiaire de cinq ailerons fenestrés fixés en force dans l'os au niveau du cotyle, pour un ancrage osseux sans ciment. 40) Device according to claim 1 for anchoring the acetabular cup by means of five fenestrated fins fixed in force in the bone at the level of the acetabulum, for bone anchoring without cement. Les cinq ailerons sont inscrits dans un cylindre de meme diamètre extérieur que la cupule, sauf les trois supérieurs qui dépassent ce diamètre de 3 mm. Leur position angulaire est caractérisée par le fait que les quatre ailerons inférieurs sont perpendiculaires entre eux et placés à 450 de part et d'autre de l'axe de la cupule. L'aileron supérieur étant situé sur cet axe. The five fins are inscribed in a cylinder with the same outside diameter as the cup, except the three upper ones which exceed this diameter by 3 mm. Their angular position is characterized by the fact that the four lower fins are perpendicular to each other and placed at 450 on either side of the axis of the cup. The upper fin being located on this axis. Les deux cupules de diamètre extérieur de 50 et 54 mm ont le même diamètre intérieur, respectivement de 45 mm, afin de recevoir le même insert.The two cups with an outside diameter of 50 and 54 mm have the same inside diameter, respectively 45 mm, in order to receive the same insert. 50) Prothèse totale de hanche selon l'une quelconque des revendications caractérisées en ce que la tige fémorale et la cupule ancrées sont réalisées en un alliage de chrome-cobalt.  50) Total hip prosthesis according to any one of the claims characterized in that the anchored femoral stem and the cup are made of a chromium-cobalt alloy.
FR8912066A 1989-09-14 1989-09-14 TOTAL HIP PROSTHESIS TYPE C.B.II. Expired - Fee Related FR2651674B1 (en)

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FR2651674B1 FR2651674B1 (en) 1993-04-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002213A1 (en) * 1994-07-14 1996-02-01 Ortho Development Corporation Proximal conical stem
WO1999003429A3 (en) * 1997-07-14 1999-04-08 Volkmar Jansson Compression endoprosthesis system
US6332896B1 (en) 1994-07-14 2001-12-25 Ortho Development Corporation Orthopaedic implant with proximal collar
EP1183999A1 (en) * 2000-09-04 2002-03-06 Didier Dr. Prost Femoral prosthesis, and implantation equipment adapted therefor
US6383226B1 (en) * 1998-06-09 2002-05-07 The Board Of Trustees Of The Leland Stanford Junior University Prostheses having curvilinear collars

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278359A (en) * 1961-01-13 1961-12-08 Maison Drapier Improvement in femoral prostheses
GB1292561A (en) * 1968-06-17 1972-10-11 William Xavier Halloran Joint prosthesis
US3903549A (en) * 1974-06-12 1975-09-09 William Minor Deyerle Acetabular cup prosthesis component for total or subtotal hip prosthesis system
DE2717615A1 (en) * 1977-04-21 1978-10-26 Kirsch Axel Coated metal implant - for fitting into jaw-bone to hold an artificial tooth
FR2528307A1 (en) * 1982-06-14 1983-12-16 Tornier Sa Prosthetic joint section for femur - has plate with rounded convex support face towards free end of femur
EP0093378B1 (en) * 1982-05-03 1987-08-12 Waldemar Link (GmbH & Co.) Femur hip joint prosthesis
CH663893A5 (en) * 1984-07-05 1988-01-29 Sulzer Ag Cement-less hip socket prosthesis - has horizontal knife edges protruding from polar area and extending downwards

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1278359A (en) * 1961-01-13 1961-12-08 Maison Drapier Improvement in femoral prostheses
GB1292561A (en) * 1968-06-17 1972-10-11 William Xavier Halloran Joint prosthesis
US3903549A (en) * 1974-06-12 1975-09-09 William Minor Deyerle Acetabular cup prosthesis component for total or subtotal hip prosthesis system
DE2717615A1 (en) * 1977-04-21 1978-10-26 Kirsch Axel Coated metal implant - for fitting into jaw-bone to hold an artificial tooth
EP0093378B1 (en) * 1982-05-03 1987-08-12 Waldemar Link (GmbH & Co.) Femur hip joint prosthesis
FR2528307A1 (en) * 1982-06-14 1983-12-16 Tornier Sa Prosthetic joint section for femur - has plate with rounded convex support face towards free end of femur
CH663893A5 (en) * 1984-07-05 1988-01-29 Sulzer Ag Cement-less hip socket prosthesis - has horizontal knife edges protruding from polar area and extending downwards

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996002213A1 (en) * 1994-07-14 1996-02-01 Ortho Development Corporation Proximal conical stem
AU684653B2 (en) * 1994-07-14 1997-12-18 Ortho Development Corporation Proximal conical stem
US5725594A (en) * 1994-07-14 1998-03-10 Ortho Development Corporation Proximal conical stem
US6332896B1 (en) 1994-07-14 2001-12-25 Ortho Development Corporation Orthopaedic implant with proximal collar
US6913624B2 (en) 1994-07-14 2005-07-05 Ortho Development Corporation Orthopaedic implant with proximal collar
WO1999003429A3 (en) * 1997-07-14 1999-04-08 Volkmar Jansson Compression endoprosthesis system
US6383226B1 (en) * 1998-06-09 2002-05-07 The Board Of Trustees Of The Leland Stanford Junior University Prostheses having curvilinear collars
EP1183999A1 (en) * 2000-09-04 2002-03-06 Didier Dr. Prost Femoral prosthesis, and implantation equipment adapted therefor

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