FR2694882A1 - Intervertebral disc prosthesis. - Google Patents
Intervertebral disc prosthesis. Download PDFInfo
- Publication number
- FR2694882A1 FR2694882A1 FR9210232A FR9210232A FR2694882A1 FR 2694882 A1 FR2694882 A1 FR 2694882A1 FR 9210232 A FR9210232 A FR 9210232A FR 9210232 A FR9210232 A FR 9210232A FR 2694882 A1 FR2694882 A1 FR 2694882A1
- Authority
- FR
- France
- Prior art keywords
- plates
- prosthesis
- prosthesis according
- pellet
- conical
- 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
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/10—Ceramics or glasses
-
- 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
-
- 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
- A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
-
- 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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
-
- 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
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30024—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in coefficient of friction
-
- 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
- A61F2002/30182—Other shapes
- A61F2002/30187—D-shaped or half-disc-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
- 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
- A61F2002/30329—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
-
- 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
- A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
-
- 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
- A61F2002/30733—Inserts placed into an endoprosthetic cavity, e.g. for modifying a material property
-
- 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
-
- 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
- A61F2002/30843—Pyramidally-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
- 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
- A61F2002/30891—Plurality of protrusions
- A61F2002/30892—Plurality of protrusions parallel
-
- 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
- A61F2/3094—Designing or manufacturing processes
- A61F2002/30968—Sintering
-
- 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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
- A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
-
- 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
- A61F2230/0034—D-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
- 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
- A61F2250/0021—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 coefficient of friction
-
- 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
- A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
-
- 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
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni 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
- A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
- A61F2310/00203—Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide
-
- 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
- A61F2310/00185—Ceramics or ceramic-like structures based on metal oxides
- A61F2310/00239—Ceramics or ceramic-like structures based on metal oxides containing zirconia or zirconium oxide ZrO2
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/38—Materials or treatment for tissue regeneration for reconstruction of the spine, vertebrae or intervertebral discs
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dermatology (AREA)
- Cardiology (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Inorganic Chemistry (AREA)
- Neurology (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Prostheses (AREA)
Abstract
Description
La présente invention a pour objet une prothèse
discale intervertébrale.The present invention relates to a prosthesis
intervertebral disc.
Comme on le sait, un disque intervertébral se
présente sous la forme d'une lentille biconvexe attachée
par ses faces aux surfaces articulaires des corps verté
braux. Il est constitué d'une partie périphérique dure
(annulus), formée de lamelles fibreuses concentriques,
et d'une partie centrale (nucleus pulposus), gélatineuse
et molle, constitué de minces faisceaux fibreux séparés par des espaces remplis d'un tissu muqueux. Un disque
intervertébral est un élément déformable permettant tous
les mouvements relatifs possibles (6 degrés de liberté) mais qui limite les amplitudes de ces derniers, notamment en torsion, en association avec les ligaments ilz-
tervertébraux et les butoirs osseux. Le disque intervertébral est une structure viscoélastique d'amortissement, qui participe à la résistance et à la stabilité du rachis verticalisé en état de pesanteur.As we know, an intervertebral disc is
present in the form of a biconvex lens attached
by its faces to the articular surfaces of the bodies verté
braux. It consists of a hard peripheral part
(annulus), formed of concentric fibrous lamellae,
and a central part (nucleus pulposus), gelatinous
and soft, consisting of thin fibrous bundles separated by spaces filled with mucous tissue. A disk
intervertebral is a deformable element allowing all
possible relative movements (6 degrees of freedom) but which limits the amplitudes of the latter, in particular in torsion, in association with the ligaments ilz-
tervertebral and bone bumpers. The intervertebral disc is a viscoelastic damping structure, which contributes to the resistance and stability of the verticalized spine in a state of gravity.
Un disque intervertébral peut subir des altérations pour diverses raisons, notamment vieillissement et dégénérescence, pouvant provoquer des hernies discales. An intervertebral disc may be damaged for a variety of reasons, including aging and degeneration, which may cause herniated discs.
La dégénérescence discale correspond à une destruction fonctionnelle puis anatomique du disque, qui semble résulter de l'effet des contraintes mécaniques sur un disque aux structures en voie de désorganisation. The disc degeneration corresponds to a functional and then anatomical destruction of the disc, which seems to result from the effect of the mechanical stresses on a disc with structures in the process of disorganization.
La dégénérescence discale modifie le comportement mécanique du disque et aboutit à une diminution de hauteur de l'espace intersomatique, laquelle entraîne une perturbation de l'ensemble fonctionnel disque--articulaires.Disc degeneration modifies the mechanical behavior of the disc and results in a decrease in the height of the intersomatic space, which causes a disruption of the disc-articular functional unit.
Il en résulte une instabilité susceptible de provoquer des conséquences cliniques gênantes, notamment des lombalgies. Ainsi l'instabilité segmentaire entraîne un fonctionnement anormal des articulaires, induisant une réaction arthrosique, source de douleurs et de processus ostéophytiques.This results in instability likely to cause uncomfortable clinical consequences, including low back pain. Segmental instability leads to abnormal functioning of the joints, inducing an osteoarthritic reaction, a source of pain and osteophytic processes.
On a donc proposé de remplacer le disque déficient par un disque artificiel, dont de nombreux types de réalisations ont été envisagés. Ainsi certaines prothèses comportent des articulations ne supprimant aucun degré de liberté, alors que d'autres au contraire négligent totalement certains mouvements et n'autorisent au maximum qu'un degré de liberté. Les auteurs des pre mières prothèses considèrent que le disque artificiel ne doit en aucune manière imposer un mouvement, que la stabilité de l'unité fonctionnelle est assurée par la rétention des freins ligamentaires restants et qu'une articulation non contrainte garantit une liaison os/prothèse durable. It has therefore been proposed to replace the deficient disk by an artificial disk, of which many types of embodiments have been envisaged. Thus some prostheses have articulations that do not suppress any degree of freedom, while others, on the contrary, completely neglect certain movements and allow only one degree of freedom. The authors of the first prostheses consider that the artificial disk must in no way impose a movement, that the stability of the functional unit is ensured by the retention of the remaining ligament brakes and that an unconstrained articulation guarantees a bone / prosthesis connection. sustainable.
Les auteurs du second type de prothèse estiment physiologiquement inutiles certains degrés de liberté, et rétablissent un degré de liberté considéré comme essentiel. Ainsi on connaît une prothèse formant charnière n'autorisant la rotation qu'autour d'un axe transversal. The authors of the second type of prosthesis consider physiologically useless certain degrees of freedom, and restore a degree of freedom considered essential. Thus, there is known a prosthesis forming a hinge permitting rotation only around a transverse axis.
Les prothèses articulées peuvent être extrêmement variées et comporter notamment des matériaux présentant une certaine souplesse, ou bien mettre en oeuvre des moyens mécaniques tels que des ressorts
Toutefois ces réalisations connues ne donnent pas entière satisfaction, par exemple parce que les frottements au niveau de l'articulation restent trop élevés (prothèse décrite dans le brevet FR 2 659 226), ou parce que l'on observe une instabilité de la prothèse en rotation. De plus, la prothèse décrite dans le brevet précité ne permet qu'une inclinaison et une flexion extension limitée à 10 degrés dans tous les plans, va leur faible en regard de la mobilité naturelle d'une vertèbre.Articulated prostheses can be extremely varied and include in particular flexible materials, or implement mechanical means such as springs
However, these known embodiments are not entirely satisfactory, for example because the friction at the joint remains too high (prosthesis described in patent FR 2 659 226), or because there is observed instability of the prosthesis in rotation. In addition, the prosthesis described in the aforementioned patent only allows inclination and flexion extension limited to 10 degrees in all planes, their low compared to the natural mobility of a vertebra.
Il est encore actuellement relativement difficile de cerner les indications de l'arthroplastie discale, qui est proposée notamment pour le traitement des lombalgies et sciatalgies par instabilité, des lombosciatiques post-dissectomie, et des spondylolisthésis de grade I. It is still relatively difficult to define the indications for disc arthroplasty, which is proposed in particular for the treatment of low back pain and sciatica by instability, post-dissectomy lumbosciatica, and grade I spondylolisthesis.
En fait, le but de l'implant constitué par la prothèse discale visée par l'invention est triple a) Etre dimensionné pour pouvoir restaurer une hauteur normale de l'espace intersomatique. En effet, la dégénérescence discale, modifiant le comportement mécanique du disque et aboutissant à une diminution de hauteur de l'espace intersomatique, entraîne une perturbation de l'ensemble fonctionnel disque-articulaires. Cette diminution ide hauteur provoque une surcharge mécanique sur les facettes articulaires, arthrogène et source possible de lombalgie. Elle peut entraîner un déplacement vers le haut et en avant de l'articulaire supérieur de la vertèbre inférieure, aboutissant à un rétrécissement du trou de conjugaison, cause possible de sciatalgie. In fact, the purpose of the implant consisting of the disc prosthesis targeted by the invention is threefold a) Being sized to restore a normal height of the intersomatic space. Indeed, disc degeneration, modifying the mechanical behavior of the disc and resulting in a decrease in height of the intersomatic space, causes a disruption of the disc-joint functional unit. This decrease in height causes mechanical overload on the facet joints, arthrosis and possible source of low back pain. It can cause upward and forward movement of the upper articular of the lower vertebra, resulting in narrowing of the foramen hole, a possible cause of sciatica.
b) Autoriser une mobilité physiologique entre les deux vertèbres instrumentées.b) Allow a physiological mobility between the two instrumented vertebrae.
L'instabilité peut être consécutive à la dégénérescence discale ou induite par la chirurgie. Les limites entre mobilité normale et anormale ne sont pas encore définies avec précision. L'instabilité segmentaire entraîne un fonctionnement anormal des articulaires, induisant comme déjà indiqué une réaction arthrosique. Instability may be secondary to disc degeneration or surgery-induced degeneration. The boundaries between normal and abnormal mobility are not yet precisely defined. Segmental instability leads to abnormal functioning of the joints, inducing, as already indicated, an osteoarthritic reaction.
c) Posséder une stabilité intrinsèque et autoriser un mouvement intersomatique.(c) Possess intrinsic stability and allow interbody movement.
L'arthroplastie s'adresse à des cas où jusqu'à présent une arthrodèse est indiquée. Elle peut être une alternative intéressante à cette intervention, non dénuée de conséquences sur les étages adjacents. En effet, toutes les arthrodèses lombaires entraînent dans les segments adjacents une augmentation des contraintes et un déplacement des centres de rotation, pouvant conduire à une hypermobilité. The arthroplasty is intended for cases where until now arthrodesis is indicated. It can be an interesting alternative to this intervention, not without consequences on the adjacent floors. Indeed, all lumbar arthrodesis leads in adjacent segments to an increase in stress and a displacement of the centers of rotation, which can lead to hypermobility.
Le suivi à long terme des zones adjacentes aux arthrodèses montre un pincement discal constant à partir de la quinzième année, et surtout un glissement ou un déplacement angulaire dont la fréquence augmente avec le recul. On peut aussi observer une arthrose importante, une hernie discale ou une spondylolyse acquise de cette néocharnière. The long-term follow-up of the areas adjacent to the arthrodesis shows a constant disc nip from the fifteenth year, and especially a slip or angular displacement whose frequency increases with the decline. We can also observe significant osteoarthritis, herniated disc or spondylolysis acquired from this neocharnière.
La prothèse discale visée par l'invention comprend deux plaques équipées de moyens de fixation aux vertèbres correspondantes, ainsi qu'un dispositif d'articulation des plaques l'une sur l'autre. The disc prosthesis targeted by the invention comprises two plates equipped with means for attachment to the corresponding vertebrae, as well as a device for articulating the plates one on the other.
Conformément à l'invention, le dispositif d'articulation est une rotule dont le centre de rotation, dans un plan antéro-postérieur est décalé vers l'arrière dans la partie postérieure des plaques et du corps vertébral, dans un plan transversal est situé sensiblement au milieu des plaques et du corps vertébral, et dans un plan vertical est situé juste sous la plaque de la vertèbre inférieure ; cette prothèse comporte de plus un anneau intercalaire d'amortissement, réalisé en une matière souple, percé d'une ouverture de passage de la rotule et dimensionné pour se loger dans l'espace délimité entre les plaques et autour de la rotule en épou sant sensiblement le contour des plaques. According to the invention, the hinge device is a ball joint whose center of rotation, in an anteroposterior plane is shifted rearwardly in the posterior part of the plates and the vertebral body, in a transverse plane is situated substantially in the middle of the plates and vertebral body, and in a vertical plane is located just under the plate of the lower vertebra; this prosthesis further comprises an intermediate damping ring, made of a flexible material, pierced with a passage opening of the ball and dimensioned to fit in the space defined between the plates and around the ball joint substantially the outline of the plates.
Le positionnement du centre de courbure de la rotule tel que défini selon l'invention présente l'avantage d'éviter de contraindre les apophyses articulaires, comme dans les vertèbres naturelles, ce qui n'avait pas été jusqu'à présent obtenu avec les prothèses connues. The positioning of the center of curvature of the patella as defined according to the invention has the advantage of avoiding constraining the articular processes, as in the natural vertebrae, which had not been obtained so far with the prostheses known.
De plus la prothèse selon l'invention possède tout à la fois la résistance mécanique nécessaire et des frottements réduits au niveau de l'articulation, grâce au dimensionnement approprié du système à rotule. En effet le centre de rotation n'est ni trop éloigné de l'articulation, ni trop proche de celle-ci, et permet ainsi de reproduire une mobilité proche de la mobilité naturelle. In addition, the prosthesis according to the invention has both the necessary mechanical strength and reduced friction at the joint, thanks to the appropriate sizing of the ball joint system. Indeed, the center of rotation is neither too far from the articulation, nor too close to it, and thus allows to reproduce a mobility close to the natural mobility.
D'autres particularités et avantages de l'invention apparaîtront au cours de la description qui va suivre, faite en référence aux dessins annexés qui en illustrent une forme de réalisation à titre d'exemple non limitatif. Other features and advantages of the invention will become apparent from the description which follows, with reference to the accompanying drawings which illustrate an embodiment by way of non-limiting example.
La figure I est une vue en perspective éclatée d'une paire de vertèbres équipées des éléments constitutifs d'une prothèse discale selon une forme de réalisation de l'invention. Figure 1 is an exploded perspective view of a pair of vertebrae equipped with the components of a disc prosthesis according to one embodiment of the invention.
La figure 2 est une vue de dessus de la plaque inférieure de la prothèse discale de la Fig.l
La figure 3 est une vue en coupe longitudinale suivant 3/3 de la Figea de la prothèse selon l'invention dans une position où les deux plaques sont parallèles.FIG. 2 is a view from above of the lower plate of the disc prosthesis of FIG.
Figure 3 is a longitudinal sectional view 3/3 of Figea of the prosthesis according to the invention in a position where the two plates are parallel.
La figure 4 est une vue en élévation de la prothèse des Fig.l à 3 dans une position où les deux plaques sont inclinées l'une par rapport à l'autre. Figure 4 is an elevational view of the prosthesis of Figures 1 to 3 in a position where the two plates are inclined relative to each other.
On voit à la Fiv.1 deux vertèbres adjacentes, par exemple les vertèbres lombaires L5 et L4, pouvant être reliées par une prothèse discale. Cette prothèse comprend deux plaques 1 et 2, fixées respectivement à la vertèbre inférieure L5 et à la vertèbre supérieure L4, une articulation à rotule 3 des deux plaques 1 et 3 l'une sur l'autre, et un anneau souple 10 d'amortissement intercalé entre les deux plaques 1 et 2 et traversé par la rotule 3. Fiv.1 shows two adjacent vertebrae, for example the lumbar vertebrae L5 and L4, which can be connected by a disc prosthesis. This prosthesis comprises two plates 1 and 2, respectively fixed to the lower vertebra L5 and to the upper vertebra L4, a ball joint 3 of the two plates 1 and 3 on top of each other, and a soft ring 10 damping interposed between the two plates 1 and 2 and crossed by the patella 3.
Les plaques 1, 2 sont similaires, ont des dimensions sensiblement égales à celles des vertèbres L5, L4
(ces vertèbres pouvant être situées à d'autres étages que L5-L4, y compris des étages non lombaires) et épousent approximativement le contour des surfaces articulaires associées. Chaque plaque 1, 2 présente ainsi un bord curviligne 4, sensiblement elliptique, et un bord rectiligne 5 reliant les deux extrémités tronquées de l'ellipse 4. D'autre part chaque plaque 1, 2 est percée, dans sa partie centrale, d'un trou traversant 6 dans lequel est insérée une pastille 7, 8 respective, ayant un corps dimensionné pour pouvoir s'engager dans le trou 6 correspondant.Ce dernier peut être avantageusement conique, de même que les bases complémentaires des pastilles 7, 8, qui peuvent ainsi être solidarisées de manière amovible avec les plaques ou plateaux correspondant 1, 2
Les pastilles 7, 8 constituent ensemble l'articulation 3 à rotule. La première pastille 7, insérer dans la plaque inférieure 1, présente une surface sphérique convexe 9, située en saillie par rapport à la face correspondante de la plaque 1, tandis que sa surface opposée 11, plane, affleure la face opposée, tournée vers l'extérieur de la plaque 1. La pastille 8 de la plaque supérieure 2 fait également saillie de sa face tournée vers la plaque 1, et présente une surface sphé rique concave 12. Le rayon de courbure de cette dernière est égal à celui (r) de la surface sphérique 9, afin de pouvoir glisser sur celle-ci en formant une articulation à rotule.La face opposée 13 de la pastille 8 est plane et affleure la face extérieure de la plaque 2.The plates 1, 2 are similar, have dimensions substantially equal to those of the vertebrae L5, L4
(These vertebrae may be located at other floors than L5-L4, including non-lumbar floors) and approximate the contour of the associated joint surfaces. Each plate 1, 2 thus has a curvilinear edge 4, substantially elliptical, and a straight edge 5 connecting the two truncated ends of the ellipse 4. On the other hand, each plate 1, 2 is pierced, in its central part, with a through-hole 6 in which is inserted a respective pellet 7, 8, having a body sized to be able to engage in the corresponding hole 6.The latter can be advantageously conical, as well as the complementary bases of the pellets 7, 8, which can thus be secured in a removable manner with the corresponding plates or trays 1, 2
The pellets 7, 8 together constitute the ball joint 3. The first wafer 7, inserted in the lower plate 1, has a convex spherical surface 9, projecting from the corresponding face of the plate 1, while its opposite flat surface 11 is flush with the opposite face, facing the The outside of the plate 1. The pellet 8 of the upper plate 2 also projects from its face facing the plate 1, and has a concave spherical surface 12. The radius of curvature of the latter is equal to that (r) of the spherical surface 9, in order to slide on it by forming a ball joint.The opposite face 13 of the pellet 8 is flat and is flush with the outer face of the plate 2.
Le centre de courbure ou de rotation C de la rotule 3, distant des surfaces 9 et 12 du rayon de courbure r, est localisé de la manière suivante
- ce centre C est, dans un plan antéro-postérieur (OX, OY), décalé vers l'arrière dans la partie postérieure des plaques 1, 2 et des corps vertébraux;
- dans un plan transversal (OX, OZ), le centre de rotation C est situé sensiblement au milieu des plaques 1, 2 et des corps vertébraux;
- et dans un plan vertical (OY, OZ), le centre C est situé juste sous la plaque 1 recouvrant la face supérieure de la vertèbre inférieure, par exemple L5 dans l'exemple illustré à la Fig.1. The center of curvature or rotation C of the ball 3, distant from the surfaces 9 and 12 of the radius of curvature r, is located as follows
- This center C is, in an anteroposterior plane (OX, OY), shifted rearward in the posterior part of the plates 1, 2 and vertebral bodies;
- In a transverse plane (OX, OZ), the center of rotation C is located substantially in the middle of the plates 1, 2 and vertebral bodies;
and in a vertical plane (OY, OZ), the center C is situated just under the plate 1 covering the upper face of the lower vertebra, for example L5 in the example illustrated in FIG.
Ce positionnement du centre C correspond à un rayon de courbure r compris approximativement entre la hauteur de la prothèse quand les plaques 1, 2 sont parallèles, et la moitié de cette hauteur. This positioning of the center C corresponds to a radius of curvature r approximately between the height of the prosthesis when the plates 1, 2 are parallel, and half of this height.
La prothèse comporte de plus un anneau intercalaire d'amortissement 10, réalisé en une matière souple appropriée, percé d'une ouverture 10a de passage de la rotule 3. L'anneau souple 10 est dimensionné pour pouvoir être logé dans l'espace intercalaire délimité entre les plaques 1, 2 et autour de la rotule 3, en épousant sensiblement le contour des plaques. The prosthesis further comprises an intermediate damping ring 10, made of a suitable flexible material, pierced with an opening 10a for passage of the ball 3. The flexible ring 10 is dimensioned so that it can be accommodated in the interspaced space between the plates 1, 2 and around the ball 3, substantially marrying the outline of the plates.
A l'état libre non comprimé (fiv.1), l'anneau souple 10 a une épaisseur variable de sa partie antérieure à sa partie postérieure. Sa partie antérieure a une épaisseur maximum H, qui décroît régulièrement, de part et d'autre du centre du bord de cette partie antérieure, jusqu'à la partie postérieure de l'anneau 10, dont l'épaisseur h est ainsi nettement inférieure à H. In the uncompressed free state (fiv.1), the flexible ring 10 has a variable thickness from its anterior portion to its posterior portion. Its anterior part has a maximum thickness H, which decreases regularly, on either side of the center of the edge of this anterior part, as far as the posterior part of the ring 10, whose thickness h is thus well below H.
L'anneau 10 se présente donc sous la forme d'une- pièce asymétrique dont les faces opposées sont inclinées l'une par rapport à l'autre, en se rapprochant vers la partie antérieure
Chaque plaque 1, 2 comporte, sur sa face de laquelle fait saillie la pastille correspondante 7, 8, une surépaisseur annulaire centrale 14, 15. Cette dernière est contiguë à la pastille associée 7, 8 qu'elle entoure en formant un renfort, venu de matière avec le reste de la plaque De préférence, comme représenté, les renforts 14 et 15 ont une surface conique, dont l'épaisseur décroît à partir de la pastille 7, 8.The ring 10 is therefore in the form of an asymmetric part whose opposite faces are inclined relative to each other, moving towards the front part.
Each plate 1, 2 comprises, on its face which projects the corresponding pellet 7, 8, a central annular extra thickness 14, 15. The latter is contiguous to the associated pellet 7, 8 which it surrounds forming a reinforcement, come of material with the rest of the plate Preferably, as shown, the reinforcements 14 and 15 have a conical surface, the thickness of which decreases from the pellet 7, 8.
Dans chaque plaque 1, 2 sont ménagés un ensemble de trous 16, convenablement répartis le long des bords de la plaque. Ces trous 16 sont agencés pour recevoir des picots 17, fixés dans la plaque 1, 2 par tout moyen convenable, tel que vissage de leur base cylindrique 17a. Leurs pointes 17b, impactées dans l'os sous-cho- dral des plateaux vertébraux, assurent la fixation des plaques 1, 2 aux vertèbres telles que L5 L4, L5. In each plate 1, 2 are formed a set of holes 16, suitably distributed along the edges of the plate. These holes 16 are arranged to receive pins 17, fixed in the plate 1, 2 by any suitable means, such as screwing their cylindrical base 17a. Their spikes 17b, impacted in the subchromal bone of the vertebral endplates, secure the plates 1, 2 to the vertebrae such as L5 L4, L5.
Les pastilles 7, 8 formant l'articulation en rotule 3 sont de faibles dimensions par rapport à celles des plaques 1, 2, et sont de manière générale choisies en un matériau présentant les meilleures caractéristiques tribologiques possibles (caractéristiques mécaniques : statiques, dynamiques et résistance à I'usure), et bien entendu biostable. Leur coefficient de frottement doit être faible et leur durée de vie, ainsi que celle des plaques 1, 2, très élevée (par exemple 40 ans). The pellets 7, 8 forming the ball joint 3 are of small dimensions compared to those of the plates 1, 2, and are generally selected from a material having the best possible tribological characteristics (mechanical characteristics: static, dynamic and resistance to wear), and of course biostable. Their coefficient of friction must be low and their lifetime, as well as that of plates 1, 2, very high (for example 40 years).
Ces pastilles 7, 8 peuvent être réalisées en un matériau approprié tel qu'une céramique notamment un oxyde fritté tel qu'alumine ou zircone, une pierre de synthèse, un alliage métallique avec traitement de surface (dépôt de diamant etc)
L'anneau souple 10 d'amortissement est avantageusement constitué en un élastomère, notamment un silicone de dureté shore A.These pellets 7, 8 may be made of a suitable material such as a ceramic including a sintered oxide such as alumina or zirconia, a synthetic stone, a metal alloy with surface treatment (diamond deposition etc.)
The flexible damping ring 10 is advantageously made of an elastomer, in particular a Shore A hardness silicone.
Les plateaux 1, 2 sont prévus en nombre standard, adaptés à tous les morphotypes possibles des corps vertébraux. Les rotules 3 sont par contre en nombre supérieur, adaptées à la morphologie de chaque individu et de chaque étage vertébral. On peut ainsi réaliser une gamme de pièces (plaques 1, 2, rotules 3, anneaux souples 10) adaptées à toutes les hauteurs discales des patients et permettant des combinaisons en nombre infini, adaptées à chaque cas particulier. The trays 1, 2 are provided in standard number, adapted to all possible morphotypes of the vertebral bodies. The patella 3 are in contrast in greater number, adapted to the morphology of each individual and each vertebral stage. It is thus possible to produce a range of parts (plates 1, 2, ball joints 3, flexible rings 10) adapted to all the disc height of the patients and allowing combinations in infinite number, adapted to each particular case.
Outre les avantages techniques déjà mentionnés, la prothèse discale selon l'invention présente les avantages suivants
Grâce au dimensionnement approprié de la rotule 3 et à la position de son centre d'articulation C, définis ci-dessus, les surfaces en frottement sont réduites et le frottement provoqué par le basculement des plaques 1, 2 l'une par rapport à l'autre (Fig.4) reste faible.In addition to the technical advantages already mentioned, the disc prosthesis according to the invention has the following advantages:
Thanks to the appropriate dimensioning of the ball 3 and the position of its articulation center C, defined above, the friction surfaces are reduced and the friction caused by the tilting of the plates 1, 2 relative to the other (Fig.4) remains weak.
Il en résulte une usure réduite des pastilles 7, 8. Par ailleurs les surfaces 9, 12 de l'articulation ont cependant un rayon de courbure suffisant pour ne pas centrale ner une instabilité excessive de la prothèse, tout en lui assurant une mobilité tridimensionnelle convenable, pratiquement identique à celle des vertèbres naturelles
Durant les mouvements tridimensionnels des plaques 1, 2 et des vertèbre correspondantes, l'anneau souple 10 assure une fonction d'amortissement des contraintes multiples qui limite les mouvements, les faces opposées de l'anneau 10 restant toujours en contact avec les faces correspondantes des plaques 1.La variation de la hauteur, ou de l'épaisseur de l'anneau 10 de l'avant vers l'arrière présente l'avantage de l'adapter à la lordose physiologique du rachis lombaire Le rapport Hfh s adapte ainsi à la statique rachidienne de profil, en fonction de l'étage discal concerné. L'inclinaison des faces de l'anneau 10 l'une sur l'autre peut varier en fonction de l'étage et de la morphologie du patient. A titre d'exemple elle peut atteindre 150 en L5/S1.This results in reduced wear of the pellets 7, 8. Moreover, the surfaces 9, 12 of the joint have however a radius of curvature sufficient not to centralize excessive instability of the prosthesis, while ensuring adequate three-dimensional mobility , virtually identical to that of natural vertebrae
During the three-dimensional movements of the plates 1, 2 and the corresponding vertebrae, the flexible ring 10 provides a multi-stress damping function which limits the movements, the opposite faces of the ring 10 still remaining in contact with the corresponding faces of the plates 1.The variation of the height, or the thickness of the ring 10 from front to back has the advantage of adapting it to the physiological lordosis of the lumbar spine The Hfh ratio thus adapts to the Spinal static profile, depending on the disc floor concerned. The inclination of the faces of the ring 10 one on the other may vary depending on the stage and the morphology of the patient. For example, it can reach 150 in L5 / S1.
Il convient par ailleurs d'observer que le fait que l'épaisseur de la partie antérieure de l'anneau 10 soit supérieure à celle de sa partie postérieure permet une mise en jeu plus précoce du matériau souple constitutif de cet anneau. Ceci entraîne donc la production d'un effet amortisseur dès l'apparition d'un mouvement des corps vertébraux associés à la prothèse. D'autre part, le choix convenable d'un matériau souple pour l'anneau 10, permet l'obtention d'une raideur optimale pour reproduire les pentes des rotations d'un disque sain dans les diverses sollicitations. Finalement, la prothèse selon l'invention permet d'obtenir une raideur et un amortissement très proches ou même identiques à ceux d'un disque naturel. It should also be observed that the fact that the thickness of the anterior part of the ring 10 is greater than that of its posterior part allows earlier play of the flexible material constituting this ring. This therefore leads to the production of a damping effect as soon as a movement of the vertebral bodies associated with the prosthesis occurs. On the other hand, the appropriate choice of a flexible material for the ring 10, allows obtaining an optimal stiffness to reproduce the rotational slopes of a healthy disk in the various stresses. Finally, the prosthesis according to the invention makes it possible to obtain stiffness and damping very close to or even identical to those of a natural disk.
La mise en place par le chirurgien de la prothèse qui vient d'être décrite se fait que la manière suivante. The setting up by the surgeon of the prosthesis which has just been described is as follows.
Tout d'abord le chirurgien place sur la vertèbre inférieure, par exemple L5, la plaque correspondante I, la centre convenablement par rapport au corps vertébral, et la fixe par enfoncement des picots 17 dans la vertè bre. First of all the surgeon places on the lower vertebra, for example L5, the corresponding plate I, the center suitably with respect to the vertebral body, and fixes it by driving the pins 17 into the vertebra.
Ensuite le chirurgien met en place sur la vertèbre supérieure, par exemple L4, la plaque supérieure 2, en la positionnant convenablement par rapport à la plaque inférieure 1. Then the surgeon places on the upper vertebra, for example L4, the upper plate 2, positioning it properly with respect to the lower plate 1.
Le chirurgien dispose ensuite entre les plaques 1, 2 un "sandwich" composite constitué par l'assemblage de l'anneau souple 10 et de la rotule 3, formée par les pastilles 7, 8. Il place cet assemblage dans la zone centrale entre les plaques 1, 2, avec les pastilles 7, 8 en regard des trous coniques 6, puis relâche la distraction imposée jusque là aux corps vertébraux recevant les plaques 1, 2. Il en résulte une impaction qui provoque l'entrée des bases coniques des pastilles 7, 8 dans les trous 6, et leur solidarisation à force avec les plaques 1, 2. The surgeon then has between the plates 1, 2 a composite "sandwich" constituted by the assembly of the flexible ring 10 and the ball 3, formed by the pellets 7, 8. He places this assembly in the central zone between the plates 1, 2, with the pellets 7, 8 next to the conical holes 6, then relaxes the distraction imposed so far on the vertebral bodies receiving the plates 1, 2. This results in an impaction which causes the entry of the conical bases pellets 7, 8 in the holes 6, and their integral force with the plates 1, 2.
Les valeurs des amplitudes angulaires des mouvements possibles avec la prothèse selon l'invention sont proches des amplitudes ci-dessous d'un disque sain
L4/L5 L5/S1 - Flexion/extension 240 180 - Inclinaison 140 < 140 - Rotation axiale 40 40
La prothèse selon l'invention garantit par sa solidité la restauration de l'espace intersomatique de hauteur H, tout en présentant une stabilité intrinsèque, c est-à-dire n'autorisant pas une mobilité non physiologique, surtout en translation.The values of the angular amplitudes of the possible movements with the prosthesis according to the invention are close to the amplitudes below of a healthy disc.
L4 / L5 L5 / S1 - bending / extension 240 180 - inclination 140 <140 - axial rotation 40 40
The prosthesis according to the invention guarantees by its solidity the restoration of the intersomatic space of height H, while having an intrinsic stability, that is to say not allowing non-physiological mobility, especially in translation.
Les matériaux susceptibles d'être utilisés pour la constitution de la prothèse sont bien entendu biocompatibles et doivent être biologiquement neutres, c'est à-dire non toxiques, insensibles à la corrosion. De plus ils ne doivent pas être pro-inflammatoires > leurs qualités mécaniques et biologiques ne devant pas être altérées par le mode de stérilisation choisi. A titre d'exemple les plaques 1, 2 peuvent être en acier inoxydable, stelliteftitane ou alliage de titane. The materials that can be used for the constitution of the prosthesis are of course biocompatible and must be biologically neutral, that is to say non-toxic, insensitive to corrosion. In addition they must not be pro-inflammatory> their mechanical and biological qualities should not be altered by the sterilization mode chosen. By way of example, the plates 1, 2 can be made of stainless steel, stellite-titanium or titanium alloy.
L'alliage de titane présente l'avantage de posséder des caractéristiques radiologiques et magnétiques avantageuses pour le suivi iconographique de la pathologie rachidienne, ainsi qu'une excellente biotolérance et des caractéristiques mécaniques élevées. The titanium alloy has the advantage of possessing advantageous radiological and magnetic characteristics for the iconographic follow-up of the spinal pathology, as well as an excellent biotolerance and high mechanical characteristics.
Bien entendu l'invention est susceptible de diverses variantes d'exécution. Ainsi les picots 17 de fixation aux vertèbres peuvent être remplacés par tous autres éléments équivalents, tels que vis, plots... En revanche la fixation par ciment (méthylméthacrylate) n est pas envisageable, compte tenu de la proximité des éléments nerveux et du dégagement de chaleur lors de la polymérisation. Le nombre et l'emplacement des trous filetés 16 recevant les picots coniques 17 peut varier. Naturally, the invention is capable of various alternative embodiments. Thus the pins 17 for attachment to the vertebrae can be replaced by any other equivalent elements, such as screws, pads ... However cement fixation (methylmethacrylate) is not possible, given the proximity of the nerve elements and clearance of heat during the polymerization. The number and location of the threaded holes 16 receiving the conical pins 17 may vary.
Pour des étages non lombaires, l'anneau souple 10 peut ne pas présenter l'asymétrie décrite et donc avoir une épaisseur uniforme
Il convient d'observer que la prothèse discale selon l'invention ne comporte pas de pièce libre, contrairement à certaines prothèses discales connues. Ceci présente l'avantage d'éliminer tout risque d'éjection d'une telle pièce libre contre l'aorte ou vers le canal rachidien For non-lumbar stages, the flexible ring 10 may not have the asymmetry described and therefore have an even thickness
It should be noted that the disc prosthesis according to the invention does not comprise a free piece, unlike some known disc prostheses. This has the advantage of eliminating any risk of ejection of such a free piece against the aorta or to the spinal canal
Claims (10)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9210232A FR2694882B1 (en) | 1992-08-24 | 1992-08-24 | Intervertebral disc prosthesis. |
MX9305071A MX9305071A (en) | 1992-08-24 | 1993-08-20 | INTERVERTEBRAL DISC PROSTHESIS. |
ZA936156A ZA936156B (en) | 1992-08-24 | 1993-08-23 | Intervertebral disc prosthesis |
AU49645/93A AU4964593A (en) | 1992-08-24 | 1993-08-24 | Intervertebral disk prosthesis |
CN93118231A CN1090485A (en) | 1992-08-24 | 1993-08-24 | Intervertebral disk prosthesis |
PCT/FR1993/000825 WO1994004100A1 (en) | 1992-08-24 | 1993-08-24 | Intervertebral disk prosthesis |
TR00730/93A TR26927A (en) | 1992-08-24 | 1993-08-24 | Intervetrebral disc prosthesis. |
TW082107636A TW280767B (en) | 1992-08-24 | 1993-09-17 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9210232A FR2694882B1 (en) | 1992-08-24 | 1992-08-24 | Intervertebral disc prosthesis. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2694882A1 true FR2694882A1 (en) | 1994-02-25 |
FR2694882B1 FR2694882B1 (en) | 1994-10-21 |
Family
ID=9432991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9210232A Expired - Fee Related FR2694882B1 (en) | 1992-08-24 | 1992-08-24 | Intervertebral disc prosthesis. |
Country Status (8)
Country | Link |
---|---|
CN (1) | CN1090485A (en) |
AU (1) | AU4964593A (en) |
FR (1) | FR2694882B1 (en) |
MX (1) | MX9305071A (en) |
TR (1) | TR26927A (en) |
TW (1) | TW280767B (en) |
WO (1) | WO1994004100A1 (en) |
ZA (1) | ZA936156B (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0747025A1 (en) * | 1995-06-07 | 1996-12-11 | SMITH & NEPHEW RICHARDS, INC. | Low wear artificial spinal disc |
WO1999053970A1 (en) * | 1998-04-22 | 1999-10-28 | Zoellner Jan | Utilization of an autopolymerizing organosiloxane-based compound |
EP1109516A1 (en) * | 1998-09-04 | 2001-06-27 | Spinal Dynamics Corporation | Peanut spectacle multi discoid thoraco-lumbar disc prosthesis |
WO2001064140A1 (en) * | 2000-03-03 | 2001-09-07 | Scient'x | Disc prosthesis for cervical vertebra |
FR2805985A1 (en) * | 2000-03-10 | 2001-09-14 | Eurosurgical | Intervertebral disc prosthesis comprises two plates anchored to vertebrae, central core and viscoelastic ring |
WO2004089259A1 (en) * | 2003-04-07 | 2004-10-21 | Cervitech, Inc. | Prosthetic joint of cervical intervertebral discs |
EP1475059A2 (en) | 2003-05-06 | 2004-11-10 | Spinal Innovations, Inc. | Artificial intervertebral disc |
WO2004105655A1 (en) * | 2003-06-02 | 2004-12-09 | Impliant Ltd. | Spinal disc prosthesis |
EP1514527A2 (en) * | 2003-05-06 | 2005-03-16 | Spinal Innovations, LLC | Artificial intervertebral disc |
US7291173B2 (en) | 2003-05-06 | 2007-11-06 | Aesculap Ii, Inc. | Artificial intervertebral disc |
JP2010284540A (en) * | 2003-11-03 | 2010-12-24 | Aesculap Implant Systems Inc | Artificial intervertebral disc |
EP2258322A3 (en) * | 2003-09-02 | 2011-05-18 | Aesculap Implant Systems, Inc. | Artificial intervertebral disc |
US8007536B2 (en) | 2005-12-08 | 2011-08-30 | FBC Device ApS | Disc implant |
US8012212B2 (en) | 2003-04-07 | 2011-09-06 | Nuvasive, Inc. | Cervical intervertebral disk prosthesis |
US8152850B2 (en) | 2005-07-06 | 2012-04-10 | Spontech Spine Intelligence Group Ag | Intervertebral disc prosthesis |
US8585764B2 (en) | 2005-07-06 | 2013-11-19 | Spontech Spine Intelligence Group Ag | Intervertebral disc prosthesis manufacturing method |
Families Citing this family (136)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258031A (en) * | 1992-01-06 | 1993-11-02 | Danek Medical | Intervertebral disk arthroplasty |
US5425773A (en) * | 1992-01-06 | 1995-06-20 | Danek Medical, Inc. | Intervertebral disk arthroplasty device |
DE4417629B4 (en) * | 1993-06-24 | 2006-03-16 | SDGI Holdings, Inc., Wilmington | Implant for the replacement of vertebral bodies |
DE4327054C1 (en) * | 1993-08-12 | 1995-04-13 | Schaefer Micomed Gmbh | Ventral intervertebral implant |
US7494507B2 (en) * | 2000-01-30 | 2009-02-24 | Diamicron, Inc. | Articulating diamond-surfaced spinal implants |
WO1997000054A1 (en) * | 1995-06-19 | 1997-01-03 | Sven Olerud | An adjustable spacing device and a method of adjusting the distance between two vertebrae with the aid of said spacing device in spinal surgical operations |
US6423095B1 (en) * | 1995-10-16 | 2002-07-23 | Sdgi Holdings, Inc. | Intervertebral spacers |
US5782832A (en) * | 1996-10-01 | 1998-07-21 | Surgical Dynamics, Inc. | Spinal fusion implant and method of insertion thereof |
US5895428A (en) * | 1996-11-01 | 1999-04-20 | Berry; Don | Load bearing spinal joint implant |
US5893889A (en) * | 1997-06-20 | 1999-04-13 | Harrington; Michael | Artificial disc |
WO1999060837A2 (en) | 1998-05-27 | 1999-12-02 | Nuvasive, Inc. | Bone blocks and methods for inserting |
US6251140B1 (en) | 1998-05-27 | 2001-06-26 | Nuvasive, Inc. | Interlocking spinal inserts |
WO1999060957A1 (en) | 1998-05-27 | 1999-12-02 | Nuvasive, Inc. | Methods and apparatus for separating and stabilizing adjacent vertebrae |
US6039763A (en) * | 1998-10-27 | 2000-03-21 | Disc Replacement Technologies, Inc. | Articulating spinal disc prosthesis |
US6102950A (en) * | 1999-01-19 | 2000-08-15 | Vaccaro; Alex | Intervertebral body fusion device |
US6113638A (en) * | 1999-02-26 | 2000-09-05 | Williams; Lytton A. | Method and apparatus for intervertebral implant anchorage |
EP1253854A4 (en) | 1999-03-07 | 2010-01-06 | Discure Ltd | Method and apparatus for computerized surgery |
US6368350B1 (en) * | 1999-03-11 | 2002-04-09 | Sulzer Spine-Tech Inc. | Intervertebral disc prosthesis and method |
FR2799638B1 (en) * | 1999-10-14 | 2002-08-16 | Fred Zacouto | FIXATOR AND VERTEBRAL JOINT |
AU2001261969A1 (en) | 2000-05-25 | 2001-12-03 | Neurortho Implants Design, Llc | Inter-vertebral disc prosthesis for rachis for an anterior surgery thereof |
US6852126B2 (en) | 2000-07-17 | 2005-02-08 | Nuvasive, Inc. | Stackable interlocking intervertebral support system |
US6863689B2 (en) * | 2001-07-16 | 2005-03-08 | Spinecore, Inc. | Intervertebral spacer having a flexible wire mesh vertebral body contact element |
US6989032B2 (en) | 2001-07-16 | 2006-01-24 | Spinecore, Inc. | Artificial intervertebral disc |
US7563285B2 (en) * | 2001-07-16 | 2009-07-21 | Spinecore, Inc. | Artificial intervertebral disc utilizing a ball joint coupling |
FR2824261B1 (en) | 2001-05-04 | 2004-05-28 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS AND IMPLEMENTATION METHOD AND TOOLS |
CN100574728C (en) * | 2002-03-30 | 2009-12-30 | 无限整形外科有限公司 | Replacement device and system |
US20080027548A9 (en) | 2002-04-12 | 2008-01-31 | Ferree Bret A | Spacerless artificial disc replacements |
US8038713B2 (en) | 2002-04-23 | 2011-10-18 | Spinecore, Inc. | Two-component artificial disc replacements |
US6706068B2 (en) | 2002-04-23 | 2004-03-16 | Bret A. Ferree | Artificial disc replacements with natural kinematics |
WO2003090650A1 (en) | 2002-04-25 | 2003-11-06 | Blackstone Medical, Inc. | Artificial intervertebral disc |
US8696749B2 (en) | 2002-04-25 | 2014-04-15 | Blackstone Medical, Inc. | Artificial intervertebral disc |
GB2389046B (en) * | 2002-05-27 | 2005-10-05 | Biomet Merck Ltd | Spinal prosthesis |
US6793678B2 (en) | 2002-06-27 | 2004-09-21 | Depuy Acromed, Inc. | Prosthetic intervertebral motion disc having dampening |
FR2846550B1 (en) * | 2002-11-05 | 2006-01-13 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
US7815679B2 (en) * | 2003-01-06 | 2010-10-19 | Cardo Medical, Inc. | Modular motion preservation artificial spinal joint assembly |
BRPI0407142A (en) | 2003-02-14 | 2006-01-10 | Depuy Spine Inc | In situ intervertebral fusion device |
US6908484B2 (en) | 2003-03-06 | 2005-06-21 | Spinecore, Inc. | Cervical disc replacement |
US20050143824A1 (en) * | 2003-05-06 | 2005-06-30 | Marc Richelsoph | Artificial intervertebral disc |
US20040267367A1 (en) | 2003-06-30 | 2004-12-30 | Depuy Acromed, Inc | Intervertebral implant with conformable endplate |
ATE435630T1 (en) * | 2003-07-22 | 2009-07-15 | Synthes Gmbh | INTERVERTEBRATE IMPLANT WITH CALOT-LIKE JOINT SURFACES |
US20050038516A1 (en) * | 2003-08-14 | 2005-02-17 | Mark Spoonamore | Intervertebral disk prosthesis and method |
US7255714B2 (en) | 2003-09-30 | 2007-08-14 | Michel H. Malek | Vertically adjustable intervertebral disc prosthesis |
US7628813B2 (en) * | 2003-10-20 | 2009-12-08 | Cervitech, Inc. | Cervical intervertebral prosthesis system |
DE502004006648D1 (en) | 2003-11-18 | 2008-05-08 | Zimmer Gmbh | Intervertebral disc implant |
US7862586B2 (en) | 2003-11-25 | 2011-01-04 | Life Spine, Inc. | Spinal stabilization systems |
AU2005206118A1 (en) * | 2004-01-09 | 2005-08-04 | Warsaw Orthopedic, Inc. | Mobile bearing spinal device and method |
EP2113227B1 (en) | 2004-02-04 | 2015-07-29 | LDR Medical | Intervertebral disc prosthesis |
FR2865629B1 (en) | 2004-02-04 | 2007-01-26 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
US8636802B2 (en) | 2004-03-06 | 2014-01-28 | DePuy Synthes Products, LLC | Dynamized interspinal implant |
US7918891B1 (en) | 2004-03-29 | 2011-04-05 | Nuvasive Inc. | Systems and methods for spinal fusion |
FR2877833B1 (en) * | 2004-11-15 | 2007-10-12 | Alain Ventimiglia | CORRECTEUR OF LORDOSES |
US8172855B2 (en) | 2004-11-24 | 2012-05-08 | Abdou M S | Devices and methods for inter-vertebral orthopedic device placement |
FR2879436B1 (en) | 2004-12-22 | 2007-03-09 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
US7799080B2 (en) | 2005-04-22 | 2010-09-21 | Doty Keith L | Spinal disc prosthesis and methods of use |
US7361192B2 (en) | 2005-04-22 | 2008-04-22 | Doty Keith L | Spinal disc prosthesis and methods of use |
FR2887762B1 (en) | 2005-06-29 | 2007-10-12 | Ldr Medical Soc Par Actions Si | INTERVERTEBRAL DISC PROSTHESIS INSERTION INSTRUMENTATION BETWEEN VERTEBRATES |
US8328851B2 (en) | 2005-07-28 | 2012-12-11 | Nuvasive, Inc. | Total disc replacement system and related methods |
FR2891135B1 (en) | 2005-09-23 | 2008-09-12 | Ldr Medical Sarl | INTERVERTEBRAL DISC PROSTHESIS |
US8435295B2 (en) | 2005-09-26 | 2013-05-07 | Infinity Orthopaedics Company | System and method for intervertebral implant delivery and removal |
FR2893838B1 (en) | 2005-11-30 | 2008-08-08 | Ldr Medical Soc Par Actions Si | PROSTHESIS OF INTERVERTEBRAL DISC AND INSTRUMENTATION OF INSERTION OF THE PROSTHESIS BETWEEN VERTEBRATES |
DE202005019487U1 (en) * | 2005-12-13 | 2007-04-26 | Deru Gmbh | Facet joint prosthesis |
CZ299082B6 (en) * | 2006-05-11 | 2008-04-16 | Ceské vysoké ucení technické v Praze, Fakulta strojní | Intervertebral disk prosthesis |
USD741488S1 (en) | 2006-07-17 | 2015-10-20 | Nuvasive, Inc. | Spinal fusion implant |
WO2008010240A1 (en) * | 2006-07-18 | 2008-01-24 | Radames Binotto | Biocompatible intervertebral spacer |
US8105382B2 (en) | 2006-12-07 | 2012-01-31 | Interventional Spine, Inc. | Intervertebral implant |
ES2605411T3 (en) | 2007-02-09 | 2017-03-14 | Dimicron, Inc. | Multi-lobe spine joint |
US8465546B2 (en) | 2007-02-16 | 2013-06-18 | Ldr Medical | Intervertebral disc prosthesis insertion assemblies |
US8673005B1 (en) | 2007-03-07 | 2014-03-18 | Nuvasive, Inc. | System and methods for spinal fusion |
DE202007003420U1 (en) * | 2007-03-07 | 2008-07-17 | Brehm, Peter | Intervertebral prosthesis |
FR2916956B1 (en) | 2007-06-08 | 2012-12-14 | Ldr Medical | INTERSOMATIC CAGE, INTERVERTEBRAL PROSTHESIS, ANCHORING DEVICE AND IMPLANTATION INSTRUMENTATION |
US8900307B2 (en) | 2007-06-26 | 2014-12-02 | DePuy Synthes Products, LLC | Highly lordosed fusion cage |
US9101491B2 (en) | 2007-12-28 | 2015-08-11 | Nuvasive, Inc. | Spinal surgical implant and related methods |
US8617214B2 (en) | 2008-01-07 | 2013-12-31 | Mmsn Limited Partnership | Spinal tension band |
WO2009092102A1 (en) | 2008-01-17 | 2009-07-23 | Synthes Usa, Llc | An expandable intervertebral implant and associated method of manufacturing the same |
US7935133B2 (en) | 2008-02-08 | 2011-05-03 | Mmsn Limited Partnership | Interlaminar hook |
US8083796B1 (en) | 2008-02-29 | 2011-12-27 | Nuvasive, Inc. | Implants and methods for spinal fusion |
US8936641B2 (en) | 2008-04-05 | 2015-01-20 | DePuy Synthes Products, LLC | Expandable intervertebral implant |
US8172902B2 (en) | 2008-07-17 | 2012-05-08 | Spinemedica, Llc | Spinal interbody spacers |
USD621509S1 (en) | 2008-10-15 | 2010-08-10 | Nuvasive, Inc. | Intervertebral implant |
US8187304B2 (en) | 2008-11-10 | 2012-05-29 | Malek Michel H | Facet fusion system |
US9492214B2 (en) | 2008-12-18 | 2016-11-15 | Michel H. Malek | Flexible spinal stabilization system |
USD754346S1 (en) | 2009-03-02 | 2016-04-19 | Nuvasive, Inc. | Spinal fusion implant |
US9687357B2 (en) | 2009-03-12 | 2017-06-27 | Nuvasive, Inc. | Vertebral body replacement |
US9387090B2 (en) | 2009-03-12 | 2016-07-12 | Nuvasive, Inc. | Vertebral body replacement |
US9526620B2 (en) | 2009-03-30 | 2016-12-27 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
US8287597B1 (en) | 2009-04-16 | 2012-10-16 | Nuvasive, Inc. | Method and apparatus for performing spine surgery |
US9351845B1 (en) | 2009-04-16 | 2016-05-31 | Nuvasive, Inc. | Method and apparatus for performing spine surgery |
CN105342683B (en) | 2009-07-06 | 2018-02-13 | 斯恩蒂斯有限公司 | Expandable fixation assemblies |
USD731063S1 (en) | 2009-10-13 | 2015-06-02 | Nuvasive, Inc. | Spinal fusion implant |
US8764806B2 (en) | 2009-12-07 | 2014-07-01 | Samy Abdou | Devices and methods for minimally invasive spinal stabilization and instrumentation |
US9393129B2 (en) | 2009-12-10 | 2016-07-19 | DePuy Synthes Products, Inc. | Bellows-like expandable interbody fusion cage |
GB0922339D0 (en) | 2009-12-21 | 2010-02-03 | Mcminn Derek J W | Acetabular cup prothesis and introducer thereof |
US8979860B2 (en) | 2010-06-24 | 2015-03-17 | DePuy Synthes Products. LLC | Enhanced cage insertion device |
US9592063B2 (en) | 2010-06-24 | 2017-03-14 | DePuy Synthes Products, Inc. | Universal trial for lateral cages |
KR101130293B1 (en) * | 2010-06-28 | 2012-03-22 | (주)지온메드 | Intervertebral fusion cage |
AU2011271465B2 (en) | 2010-06-29 | 2015-03-19 | Synthes Gmbh | Distractible intervertebral implant |
US9301787B2 (en) | 2010-09-27 | 2016-04-05 | Mmsn Limited Partnership | Medical apparatus and method for spinal surgery |
US9402732B2 (en) | 2010-10-11 | 2016-08-02 | DePuy Synthes Products, Inc. | Expandable interspinous process spacer implant |
US8845728B1 (en) | 2011-09-23 | 2014-09-30 | Samy Abdou | Spinal fixation devices and methods of use |
US9198765B1 (en) | 2011-10-31 | 2015-12-01 | Nuvasive, Inc. | Expandable spinal fusion implants and related methods |
USD721808S1 (en) | 2011-11-03 | 2015-01-27 | Nuvasive, Inc. | Intervertebral implant |
USD675320S1 (en) | 2011-11-03 | 2013-01-29 | Nuvasive, Inc. | Intervertebral implant |
US20130226240A1 (en) | 2012-02-22 | 2013-08-29 | Samy Abdou | Spinous process fixation devices and methods of use |
FR2989877A1 (en) * | 2012-04-26 | 2013-11-01 | Dominique Petit | Prosthesis device for intervertebral disk during posterior spinal surgery, has connecting element provided with intermediate plate, where intermediate plate includes thickness such that space is formed between intermediate plate and plate |
US8940052B2 (en) | 2012-07-26 | 2015-01-27 | DePuy Synthes Products, LLC | Expandable implant |
US9198767B2 (en) | 2012-08-28 | 2015-12-01 | Samy Abdou | Devices and methods for spinal stabilization and instrumentation |
US9320617B2 (en) | 2012-10-22 | 2016-04-26 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
US9717601B2 (en) | 2013-02-28 | 2017-08-01 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
US9522070B2 (en) | 2013-03-07 | 2016-12-20 | Interventional Spine, Inc. | Intervertebral implant |
USD745159S1 (en) | 2013-10-10 | 2015-12-08 | Nuvasive, Inc. | Intervertebral implant |
US10478313B1 (en) | 2014-01-10 | 2019-11-19 | Nuvasive, Inc. | Spinal fusion implant and related methods |
TWI548429B (en) | 2014-11-07 | 2016-09-11 | 財團法人工業技術研究院 | Medical composite material method for fabricating the same and applications thereof |
USD858769S1 (en) | 2014-11-20 | 2019-09-03 | Nuvasive, Inc. | Intervertebral implant |
TWI522231B (en) | 2014-12-01 | 2016-02-21 | 財團法人工業技術研究院 | Metal/polymer composite material and method for fabricating the same |
US11426290B2 (en) | 2015-03-06 | 2022-08-30 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
US9913727B2 (en) | 2015-07-02 | 2018-03-13 | Medos International Sarl | Expandable implant |
US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
AU2017286836B2 (en) | 2016-06-28 | 2022-07-28 | Eit Emerging Implant Technologies Gmbh | Expandable and angularly adjustable intervertebral cages with articulating joint |
EP3474783B1 (en) | 2016-06-28 | 2023-05-03 | Eit Emerging Implant Technologies GmbH | Expandable, angularly adjustable intervertebral cages |
US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10744000B1 (en) | 2016-10-25 | 2020-08-18 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10537436B2 (en) | 2016-11-01 | 2020-01-21 | DePuy Synthes Products, Inc. | Curved expandable cage |
US10888433B2 (en) | 2016-12-14 | 2021-01-12 | DePuy Synthes Products, Inc. | Intervertebral implant inserter and related methods |
US10398563B2 (en) | 2017-05-08 | 2019-09-03 | Medos International Sarl | Expandable cage |
US11344424B2 (en) | 2017-06-14 | 2022-05-31 | Medos International Sarl | Expandable intervertebral implant and related methods |
US10940016B2 (en) | 2017-07-05 | 2021-03-09 | Medos International Sarl | Expandable intervertebral fusion cage |
US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
US11446156B2 (en) | 2018-10-25 | 2022-09-20 | Medos International Sarl | Expandable intervertebral implant, inserter instrument, and related methods |
US11452618B2 (en) | 2019-09-23 | 2022-09-27 | Dimicron, Inc | Spinal artificial disc removal tool |
US11426286B2 (en) | 2020-03-06 | 2022-08-30 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
CN111821073B (en) * | 2020-08-20 | 2023-02-28 | 四川大学华西医院 | Orthopedic implant system for monitoring activity posture and stress change thereof and monitoring method |
CN111938881B (en) * | 2020-08-20 | 2023-02-28 | 四川大学华西医院 | Intelligent intervertebral disc system capable of monitoring activity posture and stress thereof and monitoring method |
CN112535556B (en) * | 2020-11-02 | 2022-04-08 | 淮阴工学院 | Air bag type artificial cervical intervertebral disc prosthesis |
US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
US12090064B2 (en) | 2022-03-01 | 2024-09-17 | Medos International Sarl | Stabilization members for expandable intervertebral implants, and related systems and methods |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2263842A1 (en) * | 1972-12-28 | 1974-07-04 | Hoffmann Daimler Siegfried Dr | DISC PROTHESIS |
DE3023353A1 (en) * | 1979-10-03 | 1981-04-09 | Gebrüder Sulzer AG, 8401 Winterthur | INTERMEDIATE TURBINE TOTAL PROSTHESIS |
US4309777A (en) * | 1980-11-13 | 1982-01-12 | Patil Arun A | Artificial intervertebral disc |
US4759769A (en) * | 1987-02-12 | 1988-07-26 | Health & Research Services Inc. | Artificial spinal disc |
US4932975A (en) * | 1989-10-16 | 1990-06-12 | Vanderbilt University | Vertebral prosthesis |
WO1990011740A1 (en) * | 1989-04-08 | 1990-10-18 | Robert Bosch Gmbh | Artificial spinal disc |
WO1991013598A1 (en) * | 1990-03-07 | 1991-09-19 | J.B.S. S.A. | Prosthesis for intervertebral discs and instruments for its implantation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4714469A (en) * | 1987-02-26 | 1987-12-22 | Pfizer Hospital Products Group, Inc. | Spinal implant |
CH672589A5 (en) * | 1987-07-09 | 1989-12-15 | Sulzer Ag | |
DE8912648U1 (en) * | 1989-10-23 | 1990-11-22 | Mecron Medizinische Produkte Gmbh, 1000 Berlin | Vertebral body implant |
-
1992
- 1992-08-24 FR FR9210232A patent/FR2694882B1/en not_active Expired - Fee Related
-
1993
- 1993-08-20 MX MX9305071A patent/MX9305071A/en unknown
- 1993-08-23 ZA ZA936156A patent/ZA936156B/en unknown
- 1993-08-24 WO PCT/FR1993/000825 patent/WO1994004100A1/en active Application Filing
- 1993-08-24 TR TR00730/93A patent/TR26927A/en unknown
- 1993-08-24 AU AU49645/93A patent/AU4964593A/en not_active Abandoned
- 1993-08-24 CN CN93118231A patent/CN1090485A/en active Pending
- 1993-09-17 TW TW082107636A patent/TW280767B/zh active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2263842A1 (en) * | 1972-12-28 | 1974-07-04 | Hoffmann Daimler Siegfried Dr | DISC PROTHESIS |
DE3023353A1 (en) * | 1979-10-03 | 1981-04-09 | Gebrüder Sulzer AG, 8401 Winterthur | INTERMEDIATE TURBINE TOTAL PROSTHESIS |
US4309777A (en) * | 1980-11-13 | 1982-01-12 | Patil Arun A | Artificial intervertebral disc |
US4759769A (en) * | 1987-02-12 | 1988-07-26 | Health & Research Services Inc. | Artificial spinal disc |
WO1990011740A1 (en) * | 1989-04-08 | 1990-10-18 | Robert Bosch Gmbh | Artificial spinal disc |
US4932975A (en) * | 1989-10-16 | 1990-06-12 | Vanderbilt University | Vertebral prosthesis |
WO1991013598A1 (en) * | 1990-03-07 | 1991-09-19 | J.B.S. S.A. | Prosthesis for intervertebral discs and instruments for its implantation |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5676701A (en) * | 1993-01-14 | 1997-10-14 | Smith & Nephew, Inc. | Low wear artificial spinal disc |
EP0747025A1 (en) * | 1995-06-07 | 1996-12-11 | SMITH & NEPHEW RICHARDS, INC. | Low wear artificial spinal disc |
WO1999053970A1 (en) * | 1998-04-22 | 1999-10-28 | Zoellner Jan | Utilization of an autopolymerizing organosiloxane-based compound |
EP1109516A1 (en) * | 1998-09-04 | 2001-06-27 | Spinal Dynamics Corporation | Peanut spectacle multi discoid thoraco-lumbar disc prosthesis |
EP1109516A4 (en) * | 1998-09-04 | 2005-04-27 | Sdgi Holdings Inc | Peanut spectacle multi discoid thoraco-lumbar disc prosthesis |
USRE40260E1 (en) | 2000-03-03 | 2008-04-22 | Scient'x Societe Anonyme | Disk prosthesis for cervical vertebrae |
WO2001064140A1 (en) * | 2000-03-03 | 2001-09-07 | Scient'x | Disc prosthesis for cervical vertebra |
FR2805733A1 (en) * | 2000-03-03 | 2001-09-07 | Scient X | Cervical vertebral disc prosthesis has articulated joint formed by dome and cup with spherical curved surfaces on ceramic inserts |
US6517580B1 (en) | 2000-03-03 | 2003-02-11 | Scient'x Societe A Responsabilite Limited | Disk prosthesis for cervical vertebrae |
FR2805985A1 (en) * | 2000-03-10 | 2001-09-14 | Eurosurgical | Intervertebral disc prosthesis comprises two plates anchored to vertebrae, central core and viscoelastic ring |
US6682562B2 (en) | 2000-03-10 | 2004-01-27 | Eurosurgical Sa | Intervertebral disc prosthesis |
WO2001068003A1 (en) * | 2000-03-10 | 2001-09-20 | Eurosurgical Sa | Intervertebral disc prosthesis |
WO2004089259A1 (en) * | 2003-04-07 | 2004-10-21 | Cervitech, Inc. | Prosthetic joint of cervical intervertebral discs |
US8147551B2 (en) | 2003-04-07 | 2012-04-03 | Cervitech, Inc. | Method for implanting an intervertebral disk prosthesis |
US8012212B2 (en) | 2003-04-07 | 2011-09-06 | Nuvasive, Inc. | Cervical intervertebral disk prosthesis |
EP1514527A2 (en) * | 2003-05-06 | 2005-03-16 | Spinal Innovations, LLC | Artificial intervertebral disc |
EP1514527A3 (en) * | 2003-05-06 | 2005-10-26 | Spinal Innovations, LLC | Artificial intervertebral disc |
US7105024B2 (en) | 2003-05-06 | 2006-09-12 | Aesculap Ii, Inc. | Artificial intervertebral disc |
US7291173B2 (en) | 2003-05-06 | 2007-11-06 | Aesculap Ii, Inc. | Artificial intervertebral disc |
EP1905390A3 (en) * | 2003-05-06 | 2008-04-16 | Aesculap Implant Systems, Inc. | Artificial intervertebral disc |
EP1475059A3 (en) * | 2003-05-06 | 2005-01-12 | Spinal Innovations, Inc. | Artificial intervertebral disc |
EP1475059A2 (en) | 2003-05-06 | 2004-11-10 | Spinal Innovations, Inc. | Artificial intervertebral disc |
WO2004105655A1 (en) * | 2003-06-02 | 2004-12-09 | Impliant Ltd. | Spinal disc prosthesis |
EP2258322A3 (en) * | 2003-09-02 | 2011-05-18 | Aesculap Implant Systems, Inc. | Artificial intervertebral disc |
JP4695717B2 (en) * | 2003-11-03 | 2011-06-08 | イシュラップ インプラント システムズ, インコーポレイテッド | Artificial disc |
JP2010284540A (en) * | 2003-11-03 | 2010-12-24 | Aesculap Implant Systems Inc | Artificial intervertebral disc |
US8152850B2 (en) | 2005-07-06 | 2012-04-10 | Spontech Spine Intelligence Group Ag | Intervertebral disc prosthesis |
US8585764B2 (en) | 2005-07-06 | 2013-11-19 | Spontech Spine Intelligence Group Ag | Intervertebral disc prosthesis manufacturing method |
US8007536B2 (en) | 2005-12-08 | 2011-08-30 | FBC Device ApS | Disc implant |
US8795372B2 (en) | 2005-12-08 | 2014-08-05 | FBC Device ApS | Disc implant |
US10357375B2 (en) | 2005-12-08 | 2019-07-23 | FBC Device ApS | Method of spinal treatment |
Also Published As
Publication number | Publication date |
---|---|
WO1994004100A1 (en) | 1994-03-03 |
CN1090485A (en) | 1994-08-10 |
TR26927A (en) | 1994-08-24 |
TW280767B (en) | 1996-07-11 |
ZA936156B (en) | 1994-09-19 |
FR2694882B1 (en) | 1994-10-21 |
AU4964593A (en) | 1994-03-15 |
MX9305071A (en) | 1994-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2694882A1 (en) | Intervertebral disc prosthesis. | |
EP1263352B1 (en) | Disc prosthesis for cervical vertebra | |
KR101547212B1 (en) | Artificial intervertebral spacer | |
WO2007077319A2 (en) | Anatomic intervertebral spacer and the applications thereof | |
WO2005046534A1 (en) | Total intervertebral-disc prothesis | |
EP2765956B1 (en) | Intersomatic implant | |
FR2909859A1 (en) | Artificial joint for replacing damaged intervertebral disk of human vertebral column, has articular surfaces respectively truncated at their pole by surfaces defining space permitting mobility of plates when articular surfaces are coapted | |
EP2263613B1 (en) | Prosthetic glenoid component and set of at least two of these components | |
FR2485367A1 (en) | HIP JOINT PROSTHESIS | |
FR2912051A1 (en) | TRAPEZO-METACARPIAN IMPLANT | |
AU2004281785A1 (en) | Semi-constrained and mobile-bearing disc prosthesis | |
FR2893248A1 (en) | INTERVERTEBRAL DISC PROSTHESIS | |
FR2805457A1 (en) | INTERVERTEBRAL IMPLANT A BODY AND FACE SUPPORT | |
FR2801782A1 (en) | Intervertebral stabiliser comprises implant between adjacent vertebrae and movement damper to rear of spine | |
EP2701636A1 (en) | Intervertebral-disc prosthesis made from a thermoplastic material and having graduated mechanical properties | |
FR2931059A1 (en) | PROSTHESIS OF JOINT BETWEEN TWO BONES, IN PARTICULAR PROTHESIS TRAPEZO-METACARPIENNE | |
EP3253334B1 (en) | Total knee prosthesis with ceramic on ceramic friction torque and mobile ceramic plate | |
EP2200541B1 (en) | Intervertebral prosthesis | |
EP2696812B1 (en) | Intervertebral disc prosthesis and intervertebral prosthetic unit | |
EP3854355B1 (en) | Implantable component with improved anchoring means for ankle prosthesis and ankle prosthesis comprising such a component | |
EP1706076B1 (en) | Intervertebral discal prosthesis | |
FR2739550A1 (en) | DIGITAL JOINT PROSTHESIS WITH FLOATING AXIS | |
FR2908291A1 (en) | Intervertebral prosthetic device for surgery of vertebral column, has medullar protection shield and spherical hard nucleus or ball provided within flexible polymer monoblock, assembly sized for intervertebral space | |
FR2794639A1 (en) | Hip prosthesis femoral implant shank has at least one proximal section groove with discontinuous lengthwise surface | |
FR2971700A1 (en) | INTERVERTEBRAL DISC PROSTHESIS |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20060428 |