WO1986000011A1 - Implantable prosthesis rod for the hip - Google Patents
Implantable prosthesis rod for the hip Download PDFInfo
- Publication number
- WO1986000011A1 WO1986000011A1 PCT/DE1985/000202 DE8500202W WO8600011A1 WO 1986000011 A1 WO1986000011 A1 WO 1986000011A1 DE 8500202 W DE8500202 W DE 8500202W WO 8600011 A1 WO8600011 A1 WO 8600011A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- hip
- implant according
- head
- fitting piece
- Prior art date
Links
- 239000007943 implant Substances 0.000 claims description 44
- 239000002184 metal Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- -1 Polyethylene Polymers 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 210000002105 tongue Anatomy 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 2
- 210000000689 upper leg Anatomy 0.000 abstract description 6
- 210000000988 bone and bone Anatomy 0.000 description 26
- 230000001054 cortical effect Effects 0.000 description 7
- 210000001694 thigh bone Anatomy 0.000 description 5
- 210000001185 bone marrow Anatomy 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 206010017076 Fracture Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000013201 Stress fracture Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010959 steel Substances 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
- A61F2/30721—Accessories
- A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—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
- A61F2/3662—Femoral shafts
- A61F2/3676—Distal or diaphyseal parts of shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/3672—Intermediate parts of shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30125—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30153—Convex polygonal shapes rectangular
-
- 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
- A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30565—Special structural features of bone or joint prostheses not otherwise provided for having spring elements
- A61F2002/30571—Leaf springs
-
- 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
- A61F2002/30579—Special structural features of bone or joint prostheses not otherwise provided for with mechanically expandable devices, e.g. fixation devices
-
- 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
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- 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
- A61F2002/30594—Special structural features of bone or joint prostheses not otherwise provided for slotted, e.g. radial or meridian slot ending in a polar aperture, non-polar slots, horizontal or arcuate slots
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3611—Heads or epiphyseal parts of femur
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/3625—Necks
- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2230/0017—Angular shapes
- A61F2230/0019—Angular shapes rectangular
-
- 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
Definitions
- the invention relates to a hip stem implant according to the preamble of patent claim 1.
- Cementless implantable hip shaft implants which have a surface profile so that the bone grows on the implant and is anchored in the surface profile, and / or which are more or less adapted to the bone marrow cavity.
- the surface profiling which is intended to promote connective tissue-free growth of the bone on the implant, is designed differently. Either a regular moderate honeycomb-like pattern or regular or irregular surface profiling, a so-called Madreborian profiling. In the known hip stem implants, this surface profile extends over the entire length of the stem. However, the bone can only grow in the cancellous upper bone bed.
- Round prosthesis cross sections that lie in the round bone cross section of the medullary cavity have the disadvantage that the prostheses are not rotationally stable.
- the growth of the bone can be disturbed by certain frequently and regularly recurring stress situations such as sitting down, getting up from the sitting position or bending the knees while standing.
- the implants must therefore not be loaded immediately.
- the implant can be loosened later due to the lack of rotational stability.
- the implant In the upper region of the implant, because of the adapted, that is to say mostly round, cross section, the implant generates high circumferential tensions in the bone mantle which, according to experience, is not able to cope with it. This often leads to Admission of the prosthesis to peripheral tension fractures during the operation.
- the invention has for its object to provide a cementless implantable hip stem implant which ensures a firm fit without later loosening and enables immediate loading.
- the hip stem implant is a two-part composite component.
- the head-side part of the shaft with a profiled surface has a non-circular, elongated cross section.
- This cross section has two mutually perpendicular main axes.
- the main axes have different lengths. This gives - - -
- the cross-sectional area of the head-side part of the shaft has an elongated shape.
- This elongated shape of the cross section achieves the previously unattainable rotational stability of the implant in the bone.
- the shape of the cross-sectional area is optimally adapted to the more or less non-circular cross-section of the shaft jacket of the femur.
- the head-side part of the shaft with a profiled surface and an elongated cross section has such a length that it only extends into the area in which a cancellous bone is present. This cancellous bone section enables the bone to grow with an anchoring in the profiled surface of this head-side part of the shaft.
- the at least partially elastically and / or plastically deformable fitting seat piece facilitates the insertion of this hip shaft implant into the inside of the bone by self-centering and ensures a form-fitting fit.
- This form-fitting fit in the implanted state means that loads are created that generate a moment on the implant. The reliable prevention of the movements that can be caused by this moment is extremely important.
- the surface of the fitting seat piece is not profiled, since there is no growth of the bone at the point at which the fitting seat piece sits after the implantation.
- the rotational stability of the implant is achieved in particular in that the cross-sectional area of the head-side part of the shaft is oval, elliptical or rectangular. As a result, circumferential stress fractures of the bone are also avoided.
- the fitting seat piece creates the form-fitting seat in the lower cortical area of the implant, in which the bone does not grow.
- the round cross section of the fitting piece can be optimally adapted to the round cross-sectional shape of this bone section.
- the plastic or elastic deformability of the fitting seat piece which is embedded in this area, prevents harmful relative movement between the bone and the implant. Since the femur has a curvature in the cortical shaft area, the at least partially elastically and / or plastically deformable shaped fitting also enables the implant to be adapted to the cortical bone bearing of the medullary cavity. This is not completely possible with the previously known implants.
- the cross-sectional dimensions of the femur and the medullary cavity differ. This is optimally compensated for by the at least partially elastic and / or plastic deformability of the fitting seat piece.
- the structural shape and / or the material of the fitting seat piece can be specially designed and / or selected with particular advantage.
- the person skilled in the art has the possibility of carrying out the training and the selection of materials in such a way that in the case of compression, in particular in the case of an increase in the fitting seat piece, the stiffness thereof increases. After a secure fit, the absorption of moments generating forces can be improved.
- the inner diameter of the femur can vary, for example, between 8 and 18 mm.
- the head-side part of the shaft and the fitting seat piece can advantageously be produced separately.
- the two parts can be connected to one another in a detachable manner. For example, only two unit sizes are required for the head-side part of the shaft. Only the elastically and / or plastically deformable fitting seat piece is produced in different sizes and kept in stock.
- the head-side part of the shaft and the fitting seat piece are combined by means of a screw connection to form a structural unit. This assembly of the parts can take place during the operation before the implant is inserted.
- the head-side part of the shaft with surface profiling can consist of metal, such as steel, in a manner known per se.
- the fitting piece can be made of either metal or plastic. To eliminate the risk of corrosion or voltage breaks at the connection point with the metallic head-side part of the shaft is to be preferred over metal plastic, in particular high-pressure-resistant, low-molecular polyethylene.
- this can be a metal cylinder with an at least partially elastically deformable wall.
- This at least partially deformable wall of the metal cylinder can be at least partially slotted starting from the outer edge.
- the number and width of the slots determine the elastic behavior of this cylinder.
- the design can be such, for example, that the wall of the cylinder consists, at least in a partial area, of tongue sections which can be spaced apart in the circumferential direction.
- the constructive design features of the composite shaft implant according to the invention result in a combined overall effect.
- the body load is transferred to the bone through the collar on the neck part and the prosthesis is prevented from sinking by resting on the thigh bone freed from the femoral head and neck.
- the lower fitting seat piece ensures that moment loads are safely absorbed, while the plastic or elastic deformability of the lower fitting piece prevents harmful relative movements between the implant and the load-dependent elastically deformable bone.
- twisting of the implant is safely eliminated.
- the implant can be implanted without problems and can be inserted into the bone be loaded immediately without disturbing the growth of the bone on the implant and is not at risk of loosening later.
- FIG. 1 shows a sectional view of an embodiment of a hip shaft implant inserted into the thigh bone
- FIG. 2 is a sectional view taken along line II-II of FIG. 1
- Fig. 1 the cancellous, non-deformable and b the load-dependent, elastically deformable, cortical bone area is identified.
- the hip shaft implant has a head 1 which can be plugged on and which can be made of metal or a ceramic material.
- the metal-side part 4 of the shaft 4 > 5 has a neck 2 with a collar 3.
- the head-side part 4 of the shaft 4, 5 is equipped in a manner known per se with an upper surface profile.
- On these head-side portion 4 of the shaft 4 »5 is in the illustrated example by means of theticians ⁇ shown at 8 .
- the fit piece 5 shown is a cylindrical component.
- the fitting piece 5 is arranged in the area (zone b) of the non-cancellous, round (cortical) medullary cavity. This fitting piece 5 has a round cross section.
- slots 9 are provided in the casing in the illustrated embodiment, which extend from the free end. Elastically deformable tongues remain between these slots 9.
- the head-side part 4 of the shaft 4-, 5 has an elongated, in this case rectangular cross section. It can be seen that this cross section has two mutually perpendicular main axes, the lengths of which are different. This training certainly prevents twisting.
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR8506770A BR8506770A (pt) | 1984-06-07 | 1985-06-07 | Implante para articulacao coxo-femural |
DK56486A DK56486A (da) | 1984-06-07 | 1986-02-05 | Laarbensimplantat |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP3421145.4 | 1984-06-07 | ||
DE3421145 | 1984-06-07 | ||
DE3426947A DE3426947C2 (de) | 1984-06-07 | 1984-07-21 | Oberschenkelteil einer Hüftgelenk-Endoprothese |
DEP3426947.9 | 1984-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1986000011A1 true WO1986000011A1 (en) | 1986-01-03 |
Family
ID=25821910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1985/000202 WO1986000011A1 (en) | 1984-06-07 | 1985-06-07 | Implantable prosthesis rod for the hip |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0183809A1 (de) |
AU (1) | AU4493085A (de) |
BR (1) | BR8506770A (de) |
DE (1) | DE3426947C2 (de) |
DK (1) | DK56486A (de) |
HU (1) | HUT59812A (de) |
WO (1) | WO1986000011A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599245A1 (fr) * | 1986-05-28 | 1987-12-04 | Dambreville Alain | Prothese d'extremite superieure du femur a appui metaphysaire. |
WO1989000414A1 (en) * | 1987-07-10 | 1989-01-26 | Kernforschungszentrum Karlsruhe Gmbh | Endoprosthesis for a femoral hip joint |
EP0339320A2 (de) * | 1988-04-27 | 1989-11-02 | THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte | Prothesenschaft |
FR2683992A1 (fr) * | 1991-11-25 | 1993-05-28 | Boucher Guy | Obturateur intramedullaire bioresorbable semi-rigide a ailettes. |
EP0567349A1 (de) * | 1989-02-08 | 1993-10-27 | SMITH & NEPHEW RICHARDS, INC. | Bausatz für eine Hüftgelenkprothese |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3627097A1 (de) * | 1986-08-09 | 1988-02-18 | S & G Implants Gmbh | Stiel fuer gelenk-endoprothesen |
DE3701198A1 (de) * | 1987-01-15 | 1988-07-28 | Buse Harry | Hueftschaft-implantat |
DE3822854A1 (de) * | 1988-07-06 | 1990-01-11 | Roland Man Druckmasch | Gelenkprothese fuer ein hueftgelenk |
DE4440082A1 (de) * | 1994-11-10 | 1996-05-15 | Ilmenauer Implantate Manufaktu | Hüftgelenkprothese |
IT1290643B1 (it) * | 1997-01-17 | 1998-12-10 | Stefano Orsi | Terminale distale per stelo di protesi primaria dell'anca. |
US6554865B2 (en) * | 2001-04-19 | 2003-04-29 | Wright Medical Technology, Inc. | Humeral stem with distal tri-slot |
JP4095003B2 (ja) * | 2003-09-12 | 2008-06-04 | 泉工医科工業株式会社 | 人工関節用中遠位チップ |
DE102013219656A1 (de) * | 2013-09-27 | 2015-04-02 | Heraeus Medical Gmbh | Modulares Gelenkspacer-System |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2247721A1 (de) * | 1972-09-28 | 1974-04-04 | Hoffmann Daimler Siegfried Dr | Gelenkprothese |
CH559544A5 (de) * | 1971-09-24 | 1975-03-14 | Nat Res Dev | |
DE2607315A1 (de) * | 1975-02-28 | 1976-09-02 | United States Surgical Corp | Schaft fuer gelenkprothese |
EP0000549A1 (de) * | 1977-07-29 | 1979-02-07 | Bayer Ag | Endoprothese |
FR2425237A1 (fr) * | 1978-05-09 | 1979-12-07 | Breard Francis | Prothese de hanche a tige flexible |
EP0086879A1 (de) * | 1982-02-23 | 1983-08-31 | GebràDer Sulzer Aktiengesellschaft | Zentrierende Halterung für einen in seiner Längsachse verschiebbaren Schaft einer in einen Röhrenknochen einsetzbaren Endoprothese |
US4404692A (en) * | 1981-09-14 | 1983-09-20 | Eftekhar Nas S | Centering system for hip replacement |
US4406023A (en) * | 1982-04-19 | 1983-09-27 | Harris William H | Stemmed femoral component for the human hip |
DE3314210A1 (de) * | 1982-06-24 | 1984-01-05 | Gebrüder Sulzer AG, 8401 Winterthur | Zentriereinrichtung fuer das freie ende eines verankerungsschaftes einer gelenkendoprothese |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8212689U1 (de) * | 1982-08-12 | Howmedica International, Inc. Zweigniederlassung Kiel, 2300 Kiel | Hüftgelenkendoprothese | |
US3965490A (en) * | 1974-11-14 | 1976-06-29 | Howmedica, Inc. | Femoral insert for hip joint prosthesis |
DE2636644A1 (de) * | 1976-08-13 | 1978-02-16 | Maschf Augsburg Nuernberg Ag | Endoprothese fuer gelenke des menschlichen bewegungsapparates |
SE7710780L (sv) * | 1977-02-14 | 1978-08-14 | Richards Mfg Co | Hoftledsprotes |
DD236853A3 (de) * | 1978-03-17 | 1986-06-25 | Med Akad | Vollstaendige hueft-gelenk-endoprothese |
FR2483218B1 (fr) * | 1980-05-30 | 1986-06-27 | Cuilleron J | Tige femorale pour prothese de hanche |
DE3027832A1 (de) * | 1980-07-23 | 1982-03-04 | Sigri Elektrographit Gmbh, 8901 Meitingen | Hueftendoprothese |
-
1984
- 1984-07-21 DE DE3426947A patent/DE3426947C2/de not_active Expired
-
1985
- 1985-06-07 EP EP85902962A patent/EP0183809A1/de not_active Withdrawn
- 1985-06-07 BR BR8506770A patent/BR8506770A/pt unknown
- 1985-06-07 HU HU853039A patent/HUT59812A/hu unknown
- 1985-06-07 AU AU44930/85A patent/AU4493085A/en not_active Abandoned
- 1985-06-07 WO PCT/DE1985/000202 patent/WO1986000011A1/de not_active Application Discontinuation
-
1986
- 1986-02-05 DK DK56486A patent/DK56486A/da not_active Application Discontinuation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH559544A5 (de) * | 1971-09-24 | 1975-03-14 | Nat Res Dev | |
DE2247721A1 (de) * | 1972-09-28 | 1974-04-04 | Hoffmann Daimler Siegfried Dr | Gelenkprothese |
DE2607315A1 (de) * | 1975-02-28 | 1976-09-02 | United States Surgical Corp | Schaft fuer gelenkprothese |
EP0000549A1 (de) * | 1977-07-29 | 1979-02-07 | Bayer Ag | Endoprothese |
FR2425237A1 (fr) * | 1978-05-09 | 1979-12-07 | Breard Francis | Prothese de hanche a tige flexible |
US4404692A (en) * | 1981-09-14 | 1983-09-20 | Eftekhar Nas S | Centering system for hip replacement |
EP0086879A1 (de) * | 1982-02-23 | 1983-08-31 | GebràDer Sulzer Aktiengesellschaft | Zentrierende Halterung für einen in seiner Längsachse verschiebbaren Schaft einer in einen Röhrenknochen einsetzbaren Endoprothese |
US4406023A (en) * | 1982-04-19 | 1983-09-27 | Harris William H | Stemmed femoral component for the human hip |
DE3314210A1 (de) * | 1982-06-24 | 1984-01-05 | Gebrüder Sulzer AG, 8401 Winterthur | Zentriereinrichtung fuer das freie ende eines verankerungsschaftes einer gelenkendoprothese |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599245A1 (fr) * | 1986-05-28 | 1987-12-04 | Dambreville Alain | Prothese d'extremite superieure du femur a appui metaphysaire. |
WO1989000414A1 (en) * | 1987-07-10 | 1989-01-26 | Kernforschungszentrum Karlsruhe Gmbh | Endoprosthesis for a femoral hip joint |
EP0339320A2 (de) * | 1988-04-27 | 1989-11-02 | THERA Patent GmbH & Co. KG Gesellschaft für industrielle Schutzrechte | Prothesenschaft |
EP0339320A3 (en) * | 1988-04-27 | 1990-02-28 | Espe Stiftung & Co Produktions- Und Vertriebs Kg | Shaft for a prosthesis |
US4978359A (en) * | 1988-04-27 | 1990-12-18 | Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte | Prosthesis shaft |
EP0567349A1 (de) * | 1989-02-08 | 1993-10-27 | SMITH & NEPHEW RICHARDS, INC. | Bausatz für eine Hüftgelenkprothese |
FR2683992A1 (fr) * | 1991-11-25 | 1993-05-28 | Boucher Guy | Obturateur intramedullaire bioresorbable semi-rigide a ailettes. |
Also Published As
Publication number | Publication date |
---|---|
HUT59812A (en) | 1992-07-28 |
DE3426947C2 (de) | 1986-10-16 |
DK56486D0 (da) | 1986-02-05 |
BR8506770A (pt) | 1986-09-23 |
DE3426947A1 (de) | 1985-12-12 |
EP0183809A1 (de) | 1986-06-11 |
AU4493085A (en) | 1986-01-10 |
DK56486A (da) | 1986-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60013469T2 (de) | Hüftschaft und satz von hüftschäften | |
EP0482320B1 (de) | Schalenelement zur Aufnahme einer Gelenkendoprothese | |
DE4435497C1 (de) | Modulares Knochenimplantat mit Pfanne und Stiften | |
EP0920289B1 (de) | Endoprothese | |
EP0300131B1 (de) | Sattelprothese | |
EP0845251B1 (de) | Bausatz für eine modulare Femurkapfprothese, insbesondere eine Reoperationsprothese, und Femurkopfprothese aus einem derartigen Bausatz | |
AT390183B (de) | Knochenimplantat fuer endoprothesen | |
DE3722853C2 (de) | ||
WO1998005263A1 (de) | Vorrichtung zum fixieren abgebrochener hüftgelenkköpfe | |
DE2933141B2 (de) | Verankerungszapfen für ein nagelartiges Gleitflächen-Implantat | |
DE2247560B1 (de) | Hueftgelenkkopfprothese | |
WO1986000011A1 (en) | Implantable prosthesis rod for the hip | |
DE4442206A1 (de) | Gelenkprothese | |
DE3417923A1 (de) | Endoprothese und duebel fuer die verankerung in einem material mit knochenartiger festigkeit | |
DE3125268C2 (de) | Implantat | |
DE2805305A1 (de) | Kuenstliches hueftgelenk | |
EP0270863B1 (de) | Implantierbare Hüftgelenksprothese | |
EP0688546A1 (de) | Künstliche Hüftgelenkpfanne | |
EP1112722B1 (de) | Implantat-Element mit selbstschneidendem Gewinde | |
DE2621666A1 (de) | Endoprothese fuer hueft-, knie- oder winkelgelenke | |
DE19502503C1 (de) | Modulares Knochenimplantat mit Pfanne und Stiften | |
EP1411869B1 (de) | Künstliche gelenkpfanne | |
DE19714050C2 (de) | Hüftpfanne mit Verankerungszapfen | |
EP0339320B1 (de) | Prothesenschaft | |
DE3819948C2 (de) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Designated state(s): AU BR DK HU JP KP NO US Kind code of ref document: A1 Designated state(s): AU BR DK HU JP KP NO US |
|
AL | Designated countries for regional patents |
Designated state(s): AT BE CH DE FR GB IT LU NL SE Kind code of ref document: A1 Designated state(s): AT BE CH DE FR GB IT LU NL SE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1985902962 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1985902962 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1985902962 Country of ref document: EP |