FR2842096A1 - Dispositif permettant de separer une armature pour fond de cotyle d'une prothese acetabulaire - Google Patents

Dispositif permettant de separer une armature pour fond de cotyle d'une prothese acetabulaire Download PDF

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Publication number
FR2842096A1
FR2842096A1 FR0208828A FR0208828A FR2842096A1 FR 2842096 A1 FR2842096 A1 FR 2842096A1 FR 0208828 A FR0208828 A FR 0208828A FR 0208828 A FR0208828 A FR 0208828A FR 2842096 A1 FR2842096 A1 FR 2842096A1
Authority
FR
France
Prior art keywords
frame
arms
acetabular
crosspiece
cup bottom
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.)
Withdrawn
Application number
FR0208828A
Other languages
English (en)
Inventor
Claude Vielpeau
Christophe Hulet
Arnaud Fiquet
Philippe Bauchu
Daniel Noyer
Jean Moulin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUXEMBOURG ORTHOPAEDIC RES
Original Assignee
LUXEMBOURG ORTHOPAEDIC RES
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LUXEMBOURG ORTHOPAEDIC RES filed Critical LUXEMBOURG ORTHOPAEDIC RES
Priority to FR0208828A priority Critical patent/FR2842096A1/fr
Publication of FR2842096A1 publication Critical patent/FR2842096A1/fr
Withdrawn legal-status Critical Current

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
    • A61F2/30721—Accessories
    • A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A61B17/86—Pins or screws or threaded wires; nuts therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30159—Concave polygonal shapes
    • A61F2002/30179—X-shaped
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/30242—Three-dimensional shapes spherical
    • A61F2002/30245—Partial spheres
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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    • A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
    • A61F2002/30324—The prosthesis having different structural features at different locations within the same prosthesis differing in thickness
    • A—HUMAN NECESSITIES
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    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A61F2002/305—Snap connection
    • 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
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
    • A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
    • 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
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • 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
    • A61F2/34—Acetabular cups
    • A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
    • A61F2002/342—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface the outer shell having circumferential protrusions parallel to the equatorial plane, e.g. circumferential fins or wings
    • 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
    • A61F2002/3443—Acetabular cups with an anti-luxation elevated rim portion, e.g. on the inner shell
    • 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
    • A61F2002/3479—Cage-like shells, e.g. hemispherical outer shells made of meridian strips or wires connected to an equatorial strip, rim or wire
    • 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
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0028—Shapes in the form of latin or greek characters
    • A61F2230/0058—X-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0071—Three-dimensional shapes spherical
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0036—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in thickness
    • 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
    • A61F2310/00353—Bone cement, e.g. polymethylmethacrylate or PMMA

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

Dispositif destiné à éviter tout contact entre l'armature pour fond de cotyle (1 ) et la prothèse acétabulaire (2) et d'orienter la prothèse acétabulaire à l'intérieur de l'armature pour fond de cotyle (9) (10).L'invention concerne un dispositif venant en interface entre l'armature pour fond de cotyle et la prothèse acétabulaire et isolant l'armature pour fond de cotyle et la prothèse acétabulaire, évitant de ce fait toute friction ou contact entre l'armature pour fond de cotyle et la prothèse acétabulaire.Le dispositif est constitué d'un croisillon (3) de forme sensiblement hémisphérique dont le nombre de bras est égal au nombre de bras (4) de l'armature pour fond de cotyle et équipé d'un système d'ancrage (6) spécifique favorisant la solidarisation entre le croisillon et l'armature pour fond de cotyle (5).Le dispositif existe dans des tailles différentes afin de correspondre aux différentes tailles d'armature pour fond de cotyle. La congruence et l'encombrement sont optimaux entre les différents éléments décrits (11).Le dispositif existe dans deux types différents, soit, chaque bras du dispositif appelé croisillon a une épaisseur identique (7), soit les bras du croisillon ont une épaisseur différente (8).Le dispositif selon l'invention est particulièrement destiné à servir d'interface d'isolement entre l'armature pour fond de cotyle et la prothèse acétabulaire.

Description

DESCRIPTION
La présente invention concerne un dispositif permettant de séparer une armature pour fond de cotyle (1) d'une cupule prothétique acétabulaire (2) . Ce dispositif, amovible, fabriqué dans un matériau acrylique (3) tel que le ciment chirurgical va s'engluer dans le ciment chirurgical lorsque celui-ci sera injecté dans l'os du cotyle et éviter tout contact entre les deux prothèses, d'une part l'armature pour fond de cotyle et d'autre part la prothèse acétabulaire, avec pour but d'éviter toute métalose ou réaction par
contact et friction entre les différentes parties constituantes.
Etat de l'art: Actuellement, il n'existe pas de dispositif évitant le contact entre l'armature pour fond de cotyle (1) et la prothèse acétabulaire (2). Le chirurgien, lors de l'injection du ciment dans la cavité cotylodienne essaye de répartir au mieux le ciment chirurgical pour créer un lit homogène, ce qui n'est pas toujours évident à réaliser, avec pour conséquence que l'armature pour fond de cotyle (1) et la cupule prothétique acétabulaire (2) sont alors en contact direct. Les micromouvements imposés aux différents éléments prothétiques favorisent la mobilité des implants, ce qui entraîne des phénomènes de
frictions, d'o certaines réactions telle que la métalose lorsqu'il s'agît d'éléments prothétiques en métal.
La métalose est caractérisée par une destruction des tissus osseux et des tissus cutanés environnants
générés par les microparticules en migration.
Le dispositif selon l'invention permet de remédier aux inconvénients de la technique actuelle en optimisant le positionnement de la prothèse acétabulaire dans le logement réservé par l'armature pour
fond de cotyle.
La présente invention est constituée d'un croisillon (3), de forme sensiblement hémisphérique, qui peut être en ciment chirurgical ou dans un autre matériau. Ce croisillon peut comporter un ou plusieurs bras (4); optimalement, quatre bras seront utilisés si l'armature pour fond de cotyle dispose elle aussi de quatre bras. De toute façon, il est souhaitable que le croisillon (3) dispose du même nombre de bras que l'armature pour fond de cotyle (1) avec lequel il sera appareillé. Chaque bras du croisillon venant en contact avec la partie interne de l'armature pour fond de cotyle (5). Chaque bras du croisillon est équipé d'un système d'ancrage (6) qui permet de solidariser le croisillon à l'armature pour fond de cotyle. Le dispositif existe dans des tailles différentes afin de correspondre aux différentes tailles
d'armature pour fond de cotyle.
Le diamètre extérieur du croisillon est égal au diamètre interne de l'armature pour fond de cotyle.
Le diamètre intérieur du croisillon correspondra au diamètre extérieur de la prothèse acétabulaire.
Deux types de croisillons peuvent être utilisés par le chirurgien. Soit, chaque bras du croisillon a une épaisseur identique (7), dans ce cas, la prothèse acétabulaire sera centrée par rapport à l'armature pour fond de cotyle; soit, les bras du croisillon auront une épaisseur différente (8), dans ce cas, la prothèse acétabulaire sera décentrée par rapport à l'armature pour fond de cotyle. Le décentrage de la prothèse acétabulaire pourra varier suivant la différence d'épaisseur des bras ou par rotation du croisillon à
l'intérieur de l'armature pour fond de cotyle (9) (10).
Le dispositif (3) peut être fabriqué dans différents matériaux susceptibles de servir d'interface isolant entre les différents éléments prothétiques (1) (2). Selon le matériau, la fabrication du dispositif
peut être réalisée par moulage, injection, usinage, forgeage, donc tout procédé industriel connu.
L'armature pour fond de cotyle (1) dispose d'une fente verticale (12) au niveau de la patte (13) de soutien du bord du sourcil cotylodien afin de pouvoir plus facilement adapter cette patte au support osseux. Cette armature pour fond de cotyle et la cupule prothétique acétabulaire sont suivant l'art actuel, fabriqués dans les matériaux généralement utilisés en chirurgie osseuse. Idéalement, cette armature pour fond de cotyle sera appareillée au croisillon (3) et ce, spécialement lorsque le chirurgien souhaitera
isoler l'armature pour fond de cotyle de la cupule prothétique acétabulaire.
Le dispositif selon l'invention est particulièrement destiné à éviter tout contact entre l'armature
pour fond de cotyle et la prothèse acétabulaire.
Le dispositif permet aussi d'orienter la prothèse acétabulaire par rapport à l'armature pour fond
de cotyle.
Figure 1 vue en perspective de l'armature pour fond de cotyle.
Figure 2 Vue en perspective de l'armature pour fond de cotyle, du croisillon et de la cupule prothétique acétabulaire; Figure 3 Vue en perspective d'un croisillon dont les bras sont d'une épaisseur identique; Figure 4 Vue en perspective d'un croisillon dont les bras sont d'épaisseur différente; Figure 5 Vue en perspective de l'armature pour fond de cotyle et de son croisillon dont bras sont d'une épaisseur identique; Figure 6: Vue en perspective de l'armature pour fond de cotyle et de son croisillon dont bras d'épaisseur différente;

Claims (4)

REVENDICATIONS
1) Dispositif destiné à éviter tout contact entre l'armature pour fond de cotyle (1) et la prothèse acétabulaire (2) caractérisé en ce qu'il comprend un croisillon utilisé comme interface isolant entre l'armature pour fond de cotyle et la prothèse acétabulaire (2), évitant de ce fait tout contact ou friction entre l'armature pour fond de cotyle et la prothèse acétabulaire et permettant aussi d'orienter la prothèse
acétabulaire par rapport à l'armature pour fond de cotyle (9) (10).
2) Dispositif selon la revendication 1 caractérisé en ce que le croisillon présente une forme sensiblement hémisphérique et est muni de bras (4) dont le nombre est égal au nombre de bras de
l'armature pour fond de cotyle (1).
3) Dispositif selon la revendication 2 caractérisé en ce que chaque bras (4) a une épaisseur identique permettant un centrage de la prothèse acétabulaire par rapport à l'armature pour fond de cotyle (1).
4) Dispositif selon la revendication 3 caractérisé en ce que chaque bras (4) à une épaisseur différente permettant un décentrage de la prothèse acétabulaire par rapport à l'armature pour fond de
cotyle (1).
) Dispositif selon l'une quelconque des revendications précédentes caractérisé en ce que
chaque bras du croisillon est équipé d'un système d'ancrage (6) qui permet de solidariser le croisillon à
l'armature pour fond de cotyle.
FR0208828A 2002-07-12 2002-07-12 Dispositif permettant de separer une armature pour fond de cotyle d'une prothese acetabulaire Withdrawn FR2842096A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0208828A FR2842096A1 (fr) 2002-07-12 2002-07-12 Dispositif permettant de separer une armature pour fond de cotyle d'une prothese acetabulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0208828A FR2842096A1 (fr) 2002-07-12 2002-07-12 Dispositif permettant de separer une armature pour fond de cotyle d'une prothese acetabulaire

Publications (1)

Publication Number Publication Date
FR2842096A1 true FR2842096A1 (fr) 2004-01-16

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ID=29763809

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009092910A2 (fr) * 2007-11-05 2009-07-30 Claude Vielpeau Armature de fond de cotyle pour prothèse de hanche
WO2010059360A1 (fr) * 2008-10-30 2010-05-27 Biomet Manufacturing Corporation Implant modulaire pour prothèse d'articulation

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597747A1 (fr) * 1986-04-23 1987-10-30 Lagrange Jean Cotyle scelle
FR2631539A1 (fr) * 1988-05-20 1989-11-24 Patrick Henry Plaque de fond de cotyle modelable
EP0430831A1 (fr) * 1989-11-28 1991-06-05 Fabrique D'implants Et D'instruments Chirurgicaux Societe A Responsabilite Limitee Cotyle artificiel à fixation par ciment dans la cavité cotyloidienne de l'os iliaque
US5507831A (en) * 1994-01-03 1996-04-16 Burke; Dennis W. Distal stem centralizer for femoral prosthesis
DE19532898A1 (de) * 1995-09-06 1997-03-13 Laghaollah Dr Med Elhami Künstliche Hüftgelenkpfanne
US5702478A (en) * 1995-06-16 1997-12-30 Tornier Sa Acetabular implant intended in particular for the iliac joint socket
FR2784289A1 (fr) * 1998-10-07 2000-04-14 Pierre Kehr Implant de prothese d'articulation osseuse

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2597747A1 (fr) * 1986-04-23 1987-10-30 Lagrange Jean Cotyle scelle
FR2631539A1 (fr) * 1988-05-20 1989-11-24 Patrick Henry Plaque de fond de cotyle modelable
EP0430831A1 (fr) * 1989-11-28 1991-06-05 Fabrique D'implants Et D'instruments Chirurgicaux Societe A Responsabilite Limitee Cotyle artificiel à fixation par ciment dans la cavité cotyloidienne de l'os iliaque
US5507831A (en) * 1994-01-03 1996-04-16 Burke; Dennis W. Distal stem centralizer for femoral prosthesis
US5702478A (en) * 1995-06-16 1997-12-30 Tornier Sa Acetabular implant intended in particular for the iliac joint socket
DE19532898A1 (de) * 1995-09-06 1997-03-13 Laghaollah Dr Med Elhami Künstliche Hüftgelenkpfanne
FR2784289A1 (fr) * 1998-10-07 2000-04-14 Pierre Kehr Implant de prothese d'articulation osseuse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009092910A2 (fr) * 2007-11-05 2009-07-30 Claude Vielpeau Armature de fond de cotyle pour prothèse de hanche
WO2009092910A3 (fr) * 2007-11-05 2010-03-11 Claude Vielpeau Armature de fond de cotyle pour prothèse de hanche
EP3108858A1 (fr) 2007-11-05 2016-12-28 Philippe Girardin Armature de fond de cotyle pour prothèse de hanche
WO2010059360A1 (fr) * 2008-10-30 2010-05-27 Biomet Manufacturing Corporation Implant modulaire pour prothèse d'articulation
GB2472933A (en) * 2008-10-30 2011-02-23 Biomet Mfg Corp Modular implant for joint prosthesis

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