DE3885997T2 - Anpassbare Hüftprothese. - Google Patents
Anpassbare Hüftprothese.Info
- Publication number
- DE3885997T2 DE3885997T2 DE88830304T DE3885997T DE3885997T2 DE 3885997 T2 DE3885997 T2 DE 3885997T2 DE 88830304 T DE88830304 T DE 88830304T DE 3885997 T DE3885997 T DE 3885997T DE 3885997 T2 DE3885997 T2 DE 3885997T2
- Authority
- DE
- Germany
- Prior art keywords
- seat
- neck
- stem
- hip prosthesis
- neck part
- 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.)
- Expired - Lifetime
Links
- 210000001624 hip Anatomy 0.000 claims description 17
- 210000004197 pelvis Anatomy 0.000 claims description 5
- 210000000588 acetabulum Anatomy 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 210000000689 upper leg Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 101000911772 Homo sapiens Hsc70-interacting protein Proteins 0.000 description 1
- 241000469816 Varus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 210000002436 femur neck Anatomy 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of shafts
-
- A—HUMAN NECESSITIES
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- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2002/30339—Double cones, i.e. connecting element having two conical connections, one at each of its opposite ends
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
-
- 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
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
- A61F2002/30355—Cylinder of elliptical or oval basis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/30538—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation
- A61F2002/3054—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting angular orientation about a connection axis or implantation axis for selecting any one of a plurality of radial orientations between two modular parts, e.g. Morse taper connections, at discrete positions, angular positions or continuous positions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
- A61F2002/3055—Special structural features of bone or joint prostheses not otherwise provided for adjustable for adjusting length
-
- A—HUMAN NECESSITIES
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2002/30795—Blind bores, e.g. of circular cross-section
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
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- 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
- A61F2002/30795—Blind bores, e.g. of circular cross-section
- A61F2002/30797—Blind bores, e.g. of circular cross-section internally-threaded
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- A—HUMAN NECESSITIES
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2002/30795—Blind bores, e.g. of circular cross-section
- A61F2002/308—Blind bores, e.g. of circular cross-section oblong
-
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
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- 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
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of grooves
-
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- 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
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of grooves
- A61F2002/30828—Plurality of grooves parallel
-
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
- A61F2002/3631—Necks with an integral complete or partial peripheral collar or bearing shoulder at its base
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3652—Connections of necks to shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2002/3678—Geometrical features
- A61F2002/3686—Geometrical features bent
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Description
- Die vorliegende Erfindung betrifft den Aufbau einer Hüftprothese, die darauf ausgerichtet ist, der spezifischen Gestalt oder den geometrischen Eigenschaften der coxo- Oberschenkelknochen Gelenkverbindung des Patienten leicht eingepaßt zu werden.
- Wie im Fall von Frakturen, Arthritis und dergleichen der menschlichen Hüfte oder ihrem mit dem Oberschenkelknochen verbundenen Gelenk bekannt ist, werden gegenwärtig geeignete Hüftprothesen verwendet, um das Hüftgelenk mit erneuerter Beweglichkeit zu versehen.
- Die konventionellen Hüftprothesenaufbauten sind gewöhnlich als ein Stück gestaltet, bestehend aus einem Schaft vom Oberteil, von dem sich ein Halsstück erstreckt, auf dem ein kugelförmiger Kopf aufbracht ist, der jeden gewünschten Durchmesser besitzt.
- Die so konstruierten Prothesen besitzen jedoch den Nachteil, daß sie nicht für alle Patienten verwendet werden können, wenn diese Prothesen nicht spezifisch in der Größe dem geometrischen Bau der Hüfte und des Oberschenkelknochens das Patienten angepaßt sind.
- In der Tat können diese Prothesen, obwohl sie in befriedigender Weise für einen gegebenen Patienten zugeschnitten wurden, nicht an andere Patienten angepaßt werden, hauptsächlich weil ihre Halsstückteile größere oder kleinere Länge besitzen, als diejenige, die geeignet ist, eine passende coxo- Oberschenkelknochen Gelenkverbindung bereitzustellen.
- In diesen Fällen kann, wie augenscheinlich sein sollte, der Prothesenkopf nicht passend in das Acetabulum des Patienten eingefügt werden, mit dem es zusammenarbeiten sollte.
- Außerdem hat ein Patient manchmal einen sogenannten "varus" Oberschenkelknochen, das heißt, er besitzt eine ziemlich anormale Gestalt, und für diesen Oberschenkelknochen müssen besondere Hüftprothesen angepaßt werden, in denen das Halsteil eine spezifische vorgegebene Ausrichtung bezüglich des Schaftes besitzt.
- In diesem Zusammenhang sollte außerdem herausgehoben werden, daß das Halsstück des Oberschenkelknochens nicht senkrecht zum Becken des Patienten ist, dabei ist ein normales Halsstück um ungefähr 10º bezüglich des Beckens gedreht.
- Bekannte Hüftprothesen sind auf der anderen Seite nicht dafür gedacht, diesen Nachteil zu überwinden und sie können daher nicht perfekt den anatomischen Eigenschaften vieler Patienten angepaßt werden.
- Das Patent EP-A-0257359, als Referenz, offenbart den Aufbau einer Hüftprothese, die im wesentlichen einen Schaft an einem Oberteil umfaßt, an dem Vorrichtungen bereitgestellt sind zum festen Koppeln eines Endes eines klein gestalteten Stabes oder Halsstücks, einen runden Kopf tragend, darauf ausgerichtet, mit dem Acetabulum des Beckens eines Patienten zu koppeln; dieser kleine Stab besitzt variable Länge und eine longitudinale Achse, die jede gewünschte Ausdehnung besitzt.
- Demgemäß besteht die Aufgabe der vorliegenden Erfindung darin, die vorstehend erwähnten Nachteile durch Bereitstellen einer Hüftprothese zu überwinden, die mit einem Halsstück jeder gewünschten Länge, gemäß den Erfordernissen, bereitgestellt werden kann.
- Innerhalb des Bereiches des vorstehend erwähnten Gegenstandes ist ein Hauptgegenstand der vorliegenden Erfindung, eine solche Hüftprothese bereitzustellen, in der die Achse des Halsstücks in der Lage ist, bezüglich der Achse des Schaftes einen unterschiedlichen Öffnungswinkel zu bilden.
- Noch ein anderer Gegenstand der vorliegenden Erfindung besteht darin, einen solchen Hüftprothesenaufbau bereitzustellen, in dem die Achse des Halsteils jede gewünschte Ausdehnung besitzt, eingeschlossen eine nicht gerade.
- Gemäß einem Aspekt der vorliegenden Erfindung werden die vorstehend erwähnten Ziele und Gegenstände, wie auch bis jetzt andere Gegenstände, die nachstehend augenscheinlicher werden, durch eine Hüftprothese gemäß dem Hauptanspruch erreicht.
- Weitere charakteristische Merkmale und Vorteile des Hüftprothesenaufbaus gemäß der vorliegenden Erfindung werden hierin nachstehend augenscheinlicher werden aus der folgenden detaillierten Beschreibung einer bevorzugten, wenn auch nicht exklusiven Ausführungsform davon, die durch ein indikatives Beispiel in den Abbildungen der beiliegenden Zeichnungen veranschaulicht ist, in denen:
- Abbildung 1 eine Seitenansicht eines Hüftprothesenaufbaus gemäß der vorliegenden Erfindung ist;
- Abbildung 2 eine Vorderansicht des Prothesenschaftes ist;
- Abbildung 3 eine Querschnittsansicht ist, darstellend die Kopplung zwischen dem Schaft und dem Halsstück der Prothese;
- Abbildung 4 eine mögliche Ausführungsform des Halsstücks der Prothese zeigt;
- Abbildungen 5 bis 9 andere mögliche Ausführungsformen von Halsstücken zeigen, ausgerüstet, auf dem Prothesenschaft angebracht zu werden und unterschiedliche Ausdehnung der longitudinalen Achsen besitzend.
- Bezüglich der vorstehenden Abbildungen der beiliegenden Zeichnungen umfaßt der Hüftprothesenaufbau gemäß der vorliegenden Erfindung im wesentlichen einen Schaft 1, bestehend aus einem flachen Stab, eine gegebene Länge besitzend und eine Oberfläche, versehen mit einer Vielzahl von longitudinalen Kerben 2.
- Der Prothesenschaft erstreckt sich insbesondere gemäß einer passend gekrümmten longitudinalen Achse und besitzt an seinem unteren Ende 3 im wesentlichen Spitzkegelgestalt.
- Der Schaft ist außerdem an seinem oberen Ende, mit einem Teil 4 geschaffen, vergrößert an der Seite seiner konkaven perimetrischen Begrenzung, auf der ein Sitz oder eine Aussparung gebildet ist, eine geeignet geneigte Achse besitzend, eine ovale Querschnittsfläche und geeignet verjüngt.
- In diesem Sitz ist ein Ende 6, ebenso gestaltet einer kleinen Stange oder Halsstücks 7 fest untergebracht, das andere Ende davon, ist so gestaltet, daß es in der Lage ist, einen runden Kopf 9 zurückzuhalten, seinerseits zum Koppeln mit dem Acetabulum des Beckens des Patienten ausgerüstet.
- In diesem Zusammenhang sollte herausgehoben werden, daß der erwähnte kleine Stab jede gewünschte variable Länge haben kann, abhängig von den spezifischen Verwendungsanforderungen.
- Der erwähnte kleine Stab kann außerdem eine unterschiedlich geneigte Achse in Bezug auf sein Ende haben, das mit dem Sitz5 des Schaftes verbunden ist, und dessen Achse selbstverständlich mit der Achse dieses Sitzes zusammentrifft.
- Diese Neigung kann im wesentlichen gemäß jeder der Ebenen erhalten werden, zu der Gesamtheit der Ebenen gehörend, die durch die Linie durchgehen, die die Achse dieses Sitzes festlegt.
- Noch spezifischer, wie es in Abbildung 9 gezeigt ist, stellt eine Ausführungsform der vorliegenden Erfindung den Gebrauch eines Halsstückes bereit, einschließend ein Einfügungsende, das versetzt ist gegen seine axiale Ausdehnung.
- So wird eine Prothese gebildet, einschließend ein Halsstück, das praktisch die Verlängerung einer mittleren Krümmung bildet, gezeigt bei 10, des Oberteils des Schaftes.
- Diese Konfiguration bietet in der tatsächlichen Praxis die Möglichkeit, ein Halsstück einzufügen, auch in Prothesen geringster Dicke, wobei eine perfekte und reproduzierbare Positionierung des Schafthalsteils gesichert wird, ohne jede Risiken einer möglichen Lösung der zwei Teile.
- Aus der vorstehenden Offenbarung sollte augenscheinlich sein, daß die Erfindung die beabsichtigten Gegenstände voll erreicht.
Claims (3)
1. Eine Hüftprothese, umfassend einen Schaft (1), an dessen
Oberteil eine Aussparung (5) geschaffen ist, in die fest ein
Endteil (6) eines Halsstücksteils (7, 23) verbunden werden kann,
das andere Ende (8, 21) davon spitz zulaufend ist und verbindbar
ist in eine passend spitz zulaufende Bohrung eines kugelförmigen
Kopfes, angepaßt zum Koppeln mit dem Acetabulum des Beckens des
Patienten, dieser Schaft (1) einschließend einen flachen
Schaftstab, eine äußere Oberfläche besitzend, geschaffen mit
einer Vielzahl von longitudinal sich erstreckenden Kerben (2),
dieser Schaft (1) besitzend ein im wesentlichen
spitzkegelförmiges Grundendteil (3), diese Aussparung (5)
umfassend einne spitz zulaufenden Sitz (5) von ovalem
Querschnitt und dieses Endteil (6) dieses Halsteils einen ovalen
Querschnitt besitzend zum anliegenden Einpassen in diesen sich
verjüngenden Sitz (5) von ovalem Querschnitt dieses Schaftes; im
eingepaßten Zustand stimmt die Achse dieses Sitzes (5) im
wesentlichen mit der Achse dieses einen Endteils (6) dieses
Halsteils überein.
2. Eine Hüftprothese gemäß Anspruch 1, dadurch gekennzeichnet,
daß dieses Halsteil (7) einen Stabhalsteilkörper umfaßt,
einschließend einen zentralen Halsteil, integriert mit diesem
einen Endteil (6) und diesem anderen Endteil (8) dieses
Halsteils und dazwischen angebracht, dieses zentrale Halsteil
und dieses andere Endteil (8) umfassend, da dieses Ende (6)
dieses Halsteils (7) mit diesem Sitz (5) verbunden ist, eine
gemeinsame Achse, die gegen die Achse dieses Sitzes (5) versetzt
ist.
3. Eine Hüftprothese gemäß den Ansprüchen 1 und 2, dadurch
charakterisiert, daß dieser Sitz (5) einen flachen elliptischen
Querschnitt besitzt.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8712023A IT1213873B (it) | 1987-08-03 | 1987-08-03 | Struttura di protesi d'anca suscettibile di essere facilmente adattata alla particolare conformazione dell'articolazione coxo-femorale dei singoli pazienti |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3885997D1 DE3885997D1 (de) | 1994-01-13 |
DE3885997T2 true DE3885997T2 (de) | 1994-03-24 |
Family
ID=11139255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE88830304T Expired - Lifetime DE3885997T2 (de) | 1987-08-03 | 1988-07-19 | Anpassbare Hüftprothese. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4957510A (de) |
EP (1) | EP0310566B1 (de) |
DE (1) | DE3885997T2 (de) |
IT (1) | IT1213873B (de) |
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US8690875B2 (en) * | 2007-10-01 | 2014-04-08 | Smith & Nephew, Inc. | Method and apparatus for preparing bone for a prosthetic device |
US9486321B1 (en) | 2007-10-09 | 2016-11-08 | Richard C. Smith | Wedge-fixing implant |
US9820861B2 (en) | 2007-10-09 | 2017-11-21 | Richard Charles Smith | Rail-fixing implant |
US7637729B2 (en) * | 2007-12-13 | 2009-12-29 | Biomet Manufacturing Corp. | Modular articulating cement spacer mold |
US8123815B2 (en) | 2008-11-24 | 2012-02-28 | Biomet Manufacturing Corp. | Multiple bearing acetabular prosthesis |
EP2400927A2 (de) | 2009-02-24 | 2012-01-04 | Mako Surgical Corp. | Prothesenvorrichtung, verfahren zur planung der entfernung von knochen zur implantation der prothesenvorrichtung und robotersystem |
US8308810B2 (en) | 2009-07-14 | 2012-11-13 | Biomet Manufacturing Corp. | Multiple bearing acetabular prosthesis |
US8425618B2 (en) * | 2010-03-09 | 2013-04-23 | James Thompson Caillouette | Hip replacement process |
US9408652B2 (en) | 2010-04-27 | 2016-08-09 | Tornier Sas | Intra-articular joint replacement and method |
FR2966343B1 (fr) | 2010-10-22 | 2012-12-07 | Tornier Sa | Jeu de composants glenoidiens d'une prothese d'epaule |
US8702804B2 (en) | 2011-12-02 | 2014-04-22 | Biomet Manufacturing, Llc | Variable prosthesis |
US9427322B1 (en) * | 2012-06-27 | 2016-08-30 | Signal Medical Corporation | Hip implant |
US9427334B2 (en) | 2013-03-08 | 2016-08-30 | Stryker Corporation | Bone pads |
ES2641496T3 (es) * | 2013-10-13 | 2017-11-10 | 41Hemiverse Ag | Implante articular |
US20150374503A1 (en) * | 2014-06-30 | 2015-12-31 | Bacterin International, Inc. | Implant for fusion between adjacent bone bodies |
GB201705917D0 (en) | 2017-04-12 | 2017-05-24 | Davidson Craig | Femoral trialling kit and assembly |
GB201716107D0 (en) * | 2017-10-03 | 2017-11-15 | Depuy Ireland Ultd Co | Trial neck apparatus and method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US32488A (en) * | 1861-06-04 | Van buren ryerson | ||
CH490077A (de) * | 1968-04-25 | 1970-05-15 | Arnold Heinrich Dr Med Huggler | Hüftgelenk-Prothese |
US3938198A (en) * | 1970-08-04 | 1976-02-17 | Cutter Laboratories, Inc. | Hip joint prosthesis |
EP0159510B1 (de) * | 1984-04-14 | 1990-05-30 | HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung Kiel | Hüftgelenkendoprothese |
CH668703A5 (de) * | 1985-04-15 | 1989-01-31 | Sulzer Ag | Verbindung zweier implantat-teile. |
FR2580926B1 (fr) * | 1985-04-24 | 1991-04-12 | Montagne Patrick | Prothese femorale a col modulaire independant et variable en longueur et direction pour implantations de protheses femorales simples ou de protheses totales de hanche |
DE8611697U1 (de) * | 1986-04-25 | 1986-06-19 | Mecron Medizinische Produkte Gmbh, 1000 Berlin | Bausatz für eine Schaftprothese |
FR2616060B1 (fr) * | 1987-06-03 | 1996-07-12 | Tornier Sa | Prothese de hanche a partie epiphysaire variable |
-
1987
- 1987-08-03 IT IT8712023A patent/IT1213873B/it active
-
1988
- 1988-07-19 DE DE88830304T patent/DE3885997T2/de not_active Expired - Lifetime
- 1988-07-19 EP EP88830304A patent/EP0310566B1/de not_active Expired - Lifetime
- 1988-07-26 US US07/224,454 patent/US4957510A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3885997D1 (de) | 1994-01-13 |
US4957510A (en) | 1990-09-18 |
IT1213873B (it) | 1990-01-05 |
EP0310566A3 (en) | 1989-12-20 |
IT8712023A0 (it) | 1987-08-03 |
EP0310566B1 (de) | 1993-12-01 |
EP0310566A2 (de) | 1989-04-05 |
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