JP3089201B2 - スペースホルダ - Google Patents

スペースホルダ

Info

Publication number
JP3089201B2
JP3089201B2 JP08023671A JP2367196A JP3089201B2 JP 3089201 B2 JP3089201 B2 JP 3089201B2 JP 08023671 A JP08023671 A JP 08023671A JP 2367196 A JP2367196 A JP 2367196A JP 3089201 B2 JP3089201 B2 JP 3089201B2
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JP
Japan
Prior art keywords
space holder
jacket
holder according
edge
recesses
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
Application number
JP08023671A
Other languages
English (en)
Other versions
JPH08238266A (ja
Inventor
ユルゲン・ハルムス
ルッツ・ビーダーマン
Original Assignee
ユルゲン・ハルムス
ルッツ・ビーダーマン
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Application filed by ユルゲン・ハルムス, ルッツ・ビーダーマン filed Critical ユルゲン・ハルムス
Publication of JPH08238266A publication Critical patent/JPH08238266A/ja
Application granted granted Critical
Publication of JP3089201B2 publication Critical patent/JP3089201B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30744—End caps, e.g. for closing an endoprosthetic cavity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • 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
    • 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
    • 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
    • A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
    • A61F2002/30115—Rounded shapes, e.g. with rounded corners circular circular-O-shaped
    • A—HUMAN NECESSITIES
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • 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
    • A61F2002/30112—Rounded shapes, e.g. with rounded corners
    • A61F2002/30125—Rounded shapes, e.g. with rounded corners elliptical or oval
    • A61F2002/30126—Rounded shapes, e.g. with rounded corners elliptical or oval oval-O-shaped
    • 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
    • A61F2002/30108—Shapes
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    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30148—Convex polygonal shapes lozenge- or diamond-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
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30138—Convex polygonal shapes
    • A61F2002/30158—Convex polygonal shapes trapezoidal
    • 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
    • A61F2002/30108—Shapes
    • A61F2002/30199—Three-dimensional shapes
    • A61F2002/302—Three-dimensional shapes toroidal, e.g. rings
    • 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
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    • A61F2002/30228—Cylinders of elliptical or oval basis
    • 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
    • A61F2002/30108—Shapes
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    • A61F2002/3023—Three-dimensional shapes cylindrical wedge-shaped cylinders
    • 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
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    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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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
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    • 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
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/30403—Longitudinally-oriented cooperating ribs and grooves on mating lateral surfaces of a mainly longitudinal connection
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—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
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    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30574—Special structural features of bone or joint prostheses not otherwise provided for with an integral complete or partial collar or flange
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    • 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
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    • 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
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    • A61F2/02—Prostheses implantable into the body
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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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A61F2002/30785—Plurality of holes 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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A61F2002/30787—Plurality of holes inclined obliquely with respect to each other
    • 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
    • A61F2/30907—Nets or sleeves applied to surface of prostheses or in cement
    • A61F2002/30909—Nets
    • A61F2002/30912—Nets made of expanded metal, e.g. diamond mesh or metal nets having lozenge-shaped apertures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners
    • A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
    • 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
    • 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
    • A61F2230/0026—Angular shapes trapezoidal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0065—Three-dimensional shapes toroidal, e.g. ring-shaped, doughnut-shaped
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063—Three-dimensional shapes
    • A61F2230/0069—Three-dimensional shapes cylindrical

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Transplantation (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Prostheses (AREA)
  • Hydrogenated Pyridines (AREA)

Description

【発明の詳細な説明】
【０００１】
【発明の背景】この発明は、請求項１の前提部分に従っ
たスペースホルダに関する。
【０００２】このようなスペースホルダは、たとえばヨ
ーロッパ特許公報ＥＰ−Ｂ−０ ２６８ １１５号に開
示される。このスペースホルダは、ジャケットの対応す
る自由端から間隔をあけられた内側に、リングによって
形成された止め具を含む。リングはボルトによってジャ
ケットと接続される。特定的な実施の形態では、開口部
を含むベースプレートがリング上に装着される。
【０００３】
【発明の概要】この発明の目的は、スペースホルダを簡
単にし、より普遍的に適用可能にすることである。
【０００４】この目的は、請求項１に規定されたスペー
スホルダによって達成される。この発明の実施の形態
は、従属請求項において規定される。
【０００５】この発明のさらなる特徴および利点は、図
面を参照して実施の形態の説明から明らかになるであろ
う。
【０００６】
【発明の実施の形態】特に図１に示されるように、スペ
ースホルダは閉じたジャケット１を含む。ジャケット１
の長手軸２と直角をなした横断面は通常どおりに、特に
円筒形、楕円形または腎臓形に形作られる。図１に示さ
れる態様では、ジャケット１は、長手の対角線がジャケ
ット軸２に平行に延びる菱形の開口３、４を含む。この
ような菱形の隣接した列３、４は、菱形の高さの半分だ
け互いにずらされる。このように、鋭角で交差し、かつ
菱形３、４の長手の対角線で等角を含むウェブ５、６を
有する格子が形成される。上部端縁７および下部端縁８
はともに長手軸２と直角をなす平面に延びる。菱形３、
４と菱形を規定するウェブ５、６との大きさは、周方向
に菱形が整数個あるように選択される。端縁７、８は周
方向に菱形のそれぞれのベースによって形成されたそれ
ぞれ、偶数個のＶ字形の凹部９、１０または９′、１
０′を常に生じる。上述の幾何学的な配列のために、そ
れぞれの端縁は長手軸２の端面に位置する点にほぼ中心
的に対称である。
【０００７】図２に示された止め具を形成する部材１１
の第１の実施の形態は、プレート形状のリングとして形
成される。リング１２の外部輪郭はジャケット１の内部
輪郭に対応する。これらの寸法は、ジャケットの内部へ
押し込むことができるが、所望ならば再び押し出すこと
もできるように選択される。すなわち、リングおよびジ
ャケット１の間には摩擦嵌合がある。等距離の突出する
ノーズ１５が、リング１２の外部端縁で周方向に設けら
れる。周方向における２つのノーズの間の距離は、周方
向に隣接した２つのＶ字形の凹部９、１０の間の距離と
等しい。プレートの平面におけるノーズ１５の横断面
は、Ｖ字形の凹部９、１０のベースへノーズが滑らかに
嵌まるような寸法を有する。突出するノーズの長さは、
関連したジャケットの壁の厚さにほぼ対応する。
【０００８】使用時には、ジャケット１は上部端縁７お
よび下部端縁８を切断することによって所望の長さにさ
れる。次に、リングのノーズ１５が、関連したＶ字形の
凹部９、１０および９′、１０′の対応するベースにそ
れぞれ係合するように、第１のリング１２がジャケット
の内部へその上端で押し込まれ、第２のリングがジャケ
ット内部へその下端で押し込まれる。
【０００９】Ｖ字形の凹部が整数個あり、そのために中
心対称が生じるので、端縁７か、または破線で示される
下がった端縁７′のうちのいずれで切断するかにかかわ
らず、１つの同じ部材１１が用いられ得る。端縁が位置
７ではなく位置７′で形成されるならば、リング１２は
その長手軸を中心に回転した後で挿入される。これによ
って、１種類のリングだけを用いるので、ストックを保
管する手間が減り、操作が簡単になる。
【００１０】図３は変形された実施の形態の部材１３を
示す。また、これは、穴がプレート全体に分布した内腔
形状の穴１４によって形成されるプレートである。すべ
てのさらなる特徴は、部材１１と一致する。
【００１１】図５および図６は第３の実施の形態に従っ
た部材１６を示す。この部材もまた、穴１４およびノー
ズ１５に関して、図３に示された実施の形態と一致する
プレートを含む。外部リング１７がプレートの周囲に配
置される。図６に望ましく示されるように、外部リング
は、プレートの平面と直角をなして、したがってジャケ
ット１の外部表面に平行に延びるリング壁を有する。ノ
ーズ１５の長さは、プレート、ノーズおよびリングの間
に隙間１８を形成する分だけ、ジャケット１の厚さより
も長くなるように選択される。このために、部材はジャ
ケット１の対応する自由端７、８へ押し込まれて、それ
ぞれの対応するＶ字形の凹部９、１０、９′、１０′の
ベースへノーズ１５を適合させる。次に、リング１７の
内部表面はジャケット１の外部表面に接して位置する。
【００１２】図７および図８では、さらなる実施の形態
に従った部材１９が示される。これは、図２に示される
リングと同一のプレート形状のリング１２を有する。図
７に望ましく示されるように、外部輪郭がジャケット１
の内部輪郭に対応する端縁部分２０は、このリングの１
つの表面に設けられ、プレート１２と反対側に位置する
端縁部分２０の自由端は、円周方向に等しい間隔で先の
尖った部分２１を有する。プレート１２より上に延びる
先の尖った部分２１は、挿入されると、ジャケット１の
端縁７または８をそれぞれ超えて、ほとんどそのベース
まで延びるような高さを有する。
【００１３】図９および図１０に示される部材２２の実
施の形態は、先の尖った部分のベースがプレート１２に
平行な平面になく、プレート１２に対して傾斜した平面
にあるという点においてのみ、これまでに説明された実
施の形態とは異なる。先の尖った部分によって形成され
た端縁はまた、リング１２のプレート平面に対して傾斜
した平面に位置する。傾斜は好ましくは８°から９°の
間である。
【００１４】図１１および図１２に示される部材２４の
実施の形態は、端縁部分２０がプレートの平面に対して
傾斜している、すなわちリング１２のプレート平面に対
して９０°以外の角度で傾斜しているという点におい
て、図９および図１０に従った実施の形態とは異なる。
【００１５】動作において、実施の形態の両方、すなわ
ち部材１９および２２のそれぞれは、これまでに説明さ
れた実施の形態と同様にジャケットへ挿入されるので、
リング１２の突出するノーズ１５はＶ字形の凹部９、１
０の最も低い部分に位置し、先の尖った部分はジャケッ
トの端縁を超えて外向きに延びる。図７および図８に示
される実施の形態では、先の尖った部分２１または２
１′を異なった長さに、たとえば破線２３に沿って切っ
て、楔形状のインサートを形成してもよい。同様に、外
部端縁とプレート形状のリング１２との間の予め定めら
れた角度が変化するように、部材２２の端部を切ること
ができる。このように、わずかな基本的部材を用いるだ
けで、異なった楔角度を有するスペースホルダを得るこ
とができる。
【００１６】もちろん、それぞれのリング１２および１
３の外部輪郭は、関連したジャケットのそれぞれの内部
輪郭の関数として決定される。
【００１７】上述の特に好ましい実施の形態の変形例に
従って、端縁の凹部はＶ字形の代わりに、たとえばＵ字
形またはスリット形状の凹部のような他の形状を有して
もよい。
【図面の簡単な説明】
【図１】スペースホルダのジャケットの側面図である。
【図２】ジャケットと接続される部材の第１の実施の形
態の平面図である。
【図３】部材の第２の実施の形態の平面図である。
【図４】図３の線ＩＶ−ＩＶに沿う断面図である。
【図５】部材の第３の実施の形態の平面図である。
【図６】図５の線ＶＩ−ＶＩに沿う側断面図である。
【図７】変形したさらに別の実施の形態を示す、図８の
線ＶＩＩ−ＶＩＩに沿う断面図である。
【図８】変形したさらに別の実施の形態の平面図であ
る。
【図９】さらに別の実施の形態を示す、図１０の線ＩＸ
−ＩＸに沿う断面図である。
【図１０】さらに別の実施の形態の平面図である。
【図１１】さらに別の実施の形態を示す、図１２の線Ｘ
Ｉ−ＸＩに沿う断面図である。
【図１２】さらに別の実施の形態の平面図である。
【符号の説明】
１ ジャケット １１，１３，１６，１９，２２，２４ 止め具を形成す
る部材
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ルッツ・ビーダーマン ドイツ連邦共和国、78048 ファウ・エ ス−フィリンゲン、アム・シェーファー シュタイク、８ (56)参考文献 特開 昭63−177851（ＪＰ，Ａ) 特開 平２−149271（ＪＰ，Ａ) 特表 平７−504837（ＪＰ，Ａ) 欧州特許出願公開517030（ＥＰ，Ａ １) 欧州特許出願公開529275（ＥＰ，Ａ １) 欧州特許出願公開566810（ＥＰ，Ａ １) (58)調査した分野(Int.Cl.7，ＤＢ名) A61F 2/30 - 2/46 ＷＰＩ／Ｌ（ＱＵＥＳＴＥＬ)

Claims (15)

    (57)【特許請求の範囲】
  1. 【請求項１】 脊椎骨または椎間板のためのスペースホ
    ルダであって、 開口と、第１および第２の外部端縁（７，８）と、前記
    第１および第２の外部端縁に設けられ、互いに隣接した
    凹部（９，１０；９′，１０′）とを有するジャケット
    （１）を含み、前記凹部は周方向に配置されてその各々
    が他の外部端縁の方向に延在し、 さらに、前記ジャケットの外部端縁から少し離れた少な
    くとも１つの端部に設けられた止め具を含み、 前記止め具は前記ジャケット（１）の内部輪郭に対応す
    る外部輪郭を有し、外周にノーズ形状の突起（１５）を
    含む部材（１１，１３，１６，１９，２２）によって形
    成され、前記ノーズ形状の突起は、前記凹部（９，１
    ０；９′，１０′）に対応する前記部材の外周の位置に
    あり、前記凹部に係合することを特徴とする、スペース
    ホルダ。
  2. 【請求項２】 前記凹部は、互いに等しい間隔で離れて
    Ｖ字形の凹部（９，１０；９′，１０′）として各々形
    成されることを特徴とする、請求項１に記載のスペース
    ホルダ。
  3. 【請求項３】 前記外周は、前記部材（１１，１３，１
    ６，１９，２２）が前記ジャケット（１）に摩擦嵌合に
    よって保持される大きさに作られることを特徴とする、
    請求項１または２に記載のスペースホルダ。
  4. 【請求項４】 前記ジャケット（１）は菱形の開口
    （３，４）を有する格子として作られることを特徴とす
    る、請求項１から３のうちのいずれかに記載のスペース
    ホルダ。
  5. 【請求項５】 各菱形（３，４）の１つの対角線は前記
    スペースホルダの長手軸（２）に平行に延びることを特
    徴とする、請求項４に記載のスペースホルダ。
  6. 【請求項６】 前記部材（１１，１３，１６）はプレー
    トとして形成されることを特徴とする、請求項１から５
    のうちのいずれかに記載のスペースホルダ。
  7. 【請求項７】 前記プレート（１２）はリング形状であ
    ることを特徴とする、請求項６に記載のスペースホル
    ダ。
  8. 【請求項８】 前記プレート（１３）は複数の隣接した
    穴（１４）を含むことを特徴とする、請求項６に記載の
    スペースホルダ。
  9. 【請求項９】 前記ノーズ（１５）の長さは前記ジャケ
    ット（１）の壁の厚さと少なくとも等しいことを特徴と
    する、請求項６から８のうちのいずれかに記載のスペー
    スホルダ。
  10. 【請求項１０】 前記部材（１３）の周囲に延び、前記
    ジャケット（１）の前記外部輪郭に対応する輪郭を有す
    る外部リング（１７）が、前記ノーズ（１５）の外部端
    縁に設けられることを特徴とする、請求項９に記載のス
    ペースホルダ。
  11. 【請求項１１】 前記外部リング（１７）はその中心線
    に沿って前記ノーズ（１５）と接続されることを特徴と
    する、請求項１０に記載のスペースホルダ。
  12. 【請求項１２】 前記ジャケット（１）の自由端を超え
    て突出するぎざぎざした端縁（２１，２１′）が、前記
    部材の、隣接した端部に面する側に設けられることを特
    徴とする、請求項１から１１のうちのいずれかに記載の
    スペースホルダ。
  13. 【請求項１３】 前記ぎざぎざした端縁は前記プレート
    （１２）に平行して延びることを特徴とする、請求項１
    ２に記載のスペースホルダ。
  14. 【請求項１４】 前記ぎざぎざした端縁は前記プレート
    （１２）とは斜めに延びることを特徴とする、請求項１
    ２に記載のスペースホルダ。
  15. 【請求項１５】 前記端縁は等しい距離で隔てられた凹
    部を偶数個含むことを特徴とする、請求項１から１４の
    うちのいずれかに記載のスペースホルダ。
JP08023671A 1995-02-14 1996-02-09 スペースホルダ Expired - Lifetime JP3089201B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19504867A DE19504867C1 (de) 1995-02-14 1995-02-14 Platzhalter, insbesondere für einen Wirbel bzw. eine Bandscheibe
DE19504867:9 1995-02-14

Publications (2)

Publication Number Publication Date
JPH08238266A JPH08238266A (ja) 1996-09-17
JP3089201B2 true JP3089201B2 (ja) 2000-09-18

Family

ID=7753908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP08023671A Expired - Lifetime JP3089201B2 (ja) 1995-02-14 1996-02-09 スペースホルダ

Country Status (8)

Country Link
US (3) US5702451A (ja)
EP (1) EP0727196B1 (ja)
JP (1) JP3089201B2 (ja)
KR (1) KR100395192B1 (ja)
AT (1) ATE171857T1 (ja)
CA (1) CA2169233A1 (ja)
DE (2) DE19504867C1 (ja)
ES (1) ES2124489T3 (ja)

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KR960030900A (ko) 1996-09-17
ES2124489T3 (es) 1999-02-01
US5972031A (en) 1999-10-26
KR100395192B1 (ko) 2004-01-07
US5702451A (en) 1997-12-30
CA2169233A1 (en) 1996-08-15
US20010014826A1 (en) 2001-08-16
EP0727196A1 (de) 1996-08-21
DE59503854D1 (de) 1998-11-12
JPH08238266A (ja) 1996-09-17
DE19504867C1 (de) 1996-02-29
EP0727196B1 (de) 1998-10-07

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