JPH03501810A - 関節補綴 - Google Patents
関節補綴Info
- Publication number
- JPH03501810A JPH03501810A JP63508898A JP50889888A JPH03501810A JP H03501810 A JPH03501810 A JP H03501810A JP 63508898 A JP63508898 A JP 63508898A JP 50889888 A JP50889888 A JP 50889888A JP H03501810 A JPH03501810 A JP H03501810A
- Authority
- JP
- Japan
- Prior art keywords
- joint prosthesis
- pin
- joint
- screw
- prosthesis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
- A61F2002/30069—Properties of materials and coating materials elastomeric
-
- 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
- A61F2002/30131—Rounded shapes, e.g. with rounded corners horseshoe- or crescent- or C-shaped or U-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
- A61F2002/30143—Convex polygonal shapes hexagonal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30159—Concave polygonal shapes
- A61F2002/30177—W-shaped, M-shaped or sigma shaped
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- 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
- A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
- A61F2002/30364—Rotation about the common longitudinal axis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- 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
- A61F2002/30362—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 with possibility of relative movement between the protrusion and the recess
- A61F2002/30364—Rotation about the common longitudinal axis
- A61F2002/30367—Rotation about the common longitudinal axis with additional means for preventing said rotation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30565—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
- A61F2/30721—Accessories
- A61F2/30734—Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect
- A61F2002/30738—Sleeves
-
- 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
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
-
- 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
- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
- A61F2/4241—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers
- A61F2002/4243—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes for hands, e.g. fingers for interphalangeal joints, i.e. IP joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- 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
- A61F2230/0013—Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-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
- A61F2230/0002—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
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0056—W-shaped, e.g. M-shaped, sigma-shaped
Abstract
(57)【要約】本公報は電子出願前の出願データであるため要約のデータは記録されません。
Description
【発明の詳細な説明】
関節補綴
本発明は関節補綴を設置する骨間に固定する2つの栓の各kに挿入された2つの
ピン間の関節部から成る関節補綴に関する。
この種の指関節補綴は米国特許4,352,212に開示されている。開示され
た態様において、関節部は相互に滑って係合する2要素から成り、その1は関節
球を形成し、他の1は該関節球を介して関節式に連結される連結ビンを形成して
いる。
該関節部の2要素上のピンは関節補綴により相互連結される骨の管に導入される
プラスチック栓に受けられている。
他の従来関節補ff1(米国特許3,875,594)は全体が弾性材で構成さ
れ、関節補綴の一体部を形成するピンにより骨管内に固定される。かかる補綴は
ピンと骨との間に存在する関節式連結部で磨耗し、その結果、弾性材微粒子が人
体器官に侵入して他の器官で感染、その他トラブルの原因になる。
本発明の目的は上記と同種の関節を提供するものであり、米国特許4.352.
212のものより相当に簡単な構造であり、相互を滑って係合する要素を含まず
、かつ該特許により提案された連結骨に連結できる利点および弾性関節部により
提供される利点を有する。特に、本発明の関節補綴は構造上、簡単であり、耐久
性があり、容易に関節連結でき、磨耗がなく、安全、永久的、無害の管連結を達
成する。また、本発明の関節補綴は簡単に交換ができる。
上記目的は請求項1の特徴部に記載された関節補綴に関する本発明により達成さ
れる。
本発明の詳細および利点を添付図面を参照して以下に説明する。
第1図は本発明による指関節補綴の縦部分断面を含む側面図であり、
第2図は第1図の指関節補綴の横部分断面を含む側面図であり、
第3図は2骨間に手術により挿入される指関節部を示す断面図であり、
第4図は1態様のピン取り付は板の端面図であり、第5図は他の態様のピン取り
付は板の端面図であり、かつ第6図は第1図と同様の弾性関節部の1態様図であ
る。
第1から5図において、図示された指関節補綴はシリコンゴムまたはポリウレタ
ン等の弾性材による関節部1oを有する。この関節部は生物適合材料、好ましく
はチタン、で形成された2つのピン11に連結されている。ピン11は該ピン上
の端フランジ12のまわりに射出成形された関節部を介して該関節部に固定され
ていて、咳端フランジが該弾性材中に完全に埋入されるようになっている。該ピ
ンを充分に連結するために該端フランジは第3図の長孔13または第4図の孔1
4を形成して射出成形中に弾性材がそれら開口部へ侵入できるようになっている
。該関節部は該端フランジのまわりに2つの板状矩形拡大部15を形成するとと
もに該端フランジ間に相対的に薄く、僅かに湾曲したウェブ16を形成している
。
各ピン11は管状ねじ17へ挿入され、該ねじは生物適合材料で形成され、好ま
しくは該ピンと同一材料、チタン等で形成されるのがよい。該ねじは端フランジ
18を有し、かっ該端フランジが骨に係合するまで第3図のごとく骨管内へねじ
込んで固定される。該ねじは骨に大きく影響を与える、即ち、これは骨が不均一
な荷量により劣化せず、かつ有効寿命の長い若者が従来態様の補綴よりも長期間
より良く機能する補綴を使用できるように該関節補綴は長時間の大きな荷重に耐
えることのできることを意味する。ねじ内のボアは充分に長く、該ピンが完全に
該ボアに挿入されたときにその底部に接触しないようになっている。該関節補綴
の取り付けは骨にねじ17を固定した後該ねじにピン11を押し込む。この取り
付は後、該ねじ間に設けた弾性関節部10を介して該ピンを該ねじ内に保持する
。該ピンは取り付は後ねじ内に係止されてよい。関節補綴を使用しているとき該
ピンおよび該ねじ間で移動は生じない。該関節補綴の#P磨耗は最小限に維持さ
れる。つまり、寿命は長く人体組織へ侵入する粒子による感染または刺激の危険
は実際に完全に解消されることを意味する。他の利点はピンに連結された関節部
が、例えば関節補綴がなんらかの理由で満足できる機能をしない場合には骨の中
に残っているねじを用いて簡単な操作で容易に交換できる点である。該ピンはね
じ内で回転するように円筒状であってよく、この場合関節補綴は容易に調整でき
るが、使用中に関節補綴が回転する危険もある。仮に回転自在の態様の関節補綴
が回転防止手段を有する態様の関節補綴より安価であったとしても、ピンはボア
内で回転できないようにボアに誘導されるのが好ましい。これはビン上またはボ
ア内で該ピンまたはボアの溝に転置自在に受けられる突起を設けるまたは該ピン
またはボアを非丸形にすることにより可能になる。例えば、ピンまたはボアを6
角形断面形状にすれば、ねじを該ねじのボアに係合するビンスパナにより締め付
けることができる。
または、ねじ内にネジドライバ孔を設けるか、またはねじを把持して締め付ける
ことのできる6角形フランジをねじ上に設ける必要がある。
弾性関節部10により、上記関節補綴はばね弾力を有する。
これはリューマチ患者を治療する場合に重要である。ばね弾性のない場合患者の
指は曲折部位で硬直しやすい。更に、弾性関節部はショクを吸収し、その結果と
して振動が減衰され、関節補綴およびその取り付は部材の強度を増す。
関節部10は第6図のごとくウェブが薄(該ウェブの下側をアーチ状に高くした
形状であってよい。この関節部の方が上記第1態様のものよりも指関節を形成す
る自然の指関節の骨のその部分の交換に適切であるが、組織が上記下側のアーチ
内へ成長し、該組織が該関節部の下に挟まれて関節と抵触すると同時に該ウェブ
の上側が大きな緊張スI・レスに曝される。しかし該ウェブは指関節補綴を挿入
する部位の条件に適した最良の方法で適用するために異なる形状にすることが可
能である。
上記関節補綴は相互に滑らせて係合す要素を含む補綴よりも安価かつ簡単な方法
で製造できる。このことは該補綴が高価な関節部よりも色々なタイプの患者に使
用できることを意味する。
本発明は指関節補綴について説明されたが手関節、肘関節、および足関節等の蝶
番型の他の関節に適用できる。
FIG、 4 FIG、 5
補正書の翻訳文提出書
(特許法第184条の7第1項)
平成2年4月2乙日
特許庁長官 吉 1)文 毅 殿
1 特許出願の表示
PCT/SE8 B10 O580
2発明の名称
関節補綴
3 特許出願人
住所 スウェーデン国、ニス−24200ホエールビー。
ペーエル 309
名 称 アトス メディカル アクティエボラーグ(外1名)4代理人
補正請求の範囲
1.(第2補正)関節補綴を装着する骨間に固定されるべき2つのピン(11)
間の関節部(10)、および弾性ウェブから成り、上記ピン(11)間に関節部
(10)を形成し、上記ピン(11)が上記弾性体に埋め込まれることにより上
記ウェブ内に固定されている関節補綴において、上記各ピン(11)は1端部に
弾性体内に埋め込まれた横フランジ(12)を有し、かつ上記各ピンには骨内に
固定できる管状ねじが設けられ、上記ピンは上記ねじ内に挿入されていて、上記
ピンと上記ねしは生物適合材料から成ることを特徴とする関節補綴。
2、(変更なし)上記ウェブ(16)は湾曲している、請求項1の関節補綴。
3、(変更なし)上記フランジ(12)はさい孔されている、請求項1または2
の関節補綴。
4、(変更なし)上記関節部(10)は上記フランジのまわりに射出成形されて
いる、請求項1から3のいずれか1の関節補綴。
5、(変更なし)上記ピン(11)は上記ねじ(17)内に回転自在に設置され
ている、請求項1から4のいずれか1の関節補線。
6、(変更なし)上記ピン(11)は上記ねじ(17)内に回転しない状態で導
入されている、請求項1から4のいずれか1の関節補綴。
7、(変更なし)上記ピン(11)および上記ピンを受ける上記ねじ(17)内
のボアは非円形断面形状である、請求項6の関節補綴。
8、(変更なし)上記ピン(11)および上記ねじ(17)はチタン製である、
請求項1から7のいずれか1の関節補綴。
国際調査報告
1I1111ffi@IIIMI JvlbllmP h+ 7 (−、/3)
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Claims (1)
- 【特許請求の範囲】 1.関節補綴を装着する骨間に固定する2つの栓(17)の1内に各1挿入する 2つのピン(11)間の関節部(10)から成る関節補綴において、上記関節部 (10)は上記2つのピン(11)間に弾性ウェブ(6)を有し、上記ピンは上 記弾性ウェブ内に埋め込まれたフランジ(12)により上記ウェブ内に固定され 、かつ各上記栓(17)は骨内に固定できる管状ねじを有し、上記ねじは生物適 合材料から成ることを特徴とする関節補綴。 2.上記ウェブ(16)は湾曲している、請求項1の関節補綴。 3.上記フランジ(12)はさい孔されている、請求項1または2の関節補綴。 4.上記関節部(10)は上記フランジのまわりに射出成形されている、請求項 1から3のいずれか1の関節補綴。 5.上記ピン(11)は上記ねじ(17)内に回転自在に設置されている、請求 項1から4のいずれか1の関節補綴。 6.上記ピン(11)は上記ねじ(17)内に回転しない状態で導入されている 、請求項1から4のいずれか1の関節補綴。 7.上記ピン(11)および上記ピンを受ける上記ねじ(17)内のボアは非円 形断面形状である、請求項6の関節補綴。 8.上記ピン(11)および上記ねじ(17)はチタン製である、請求項1から 7のいずれか1の関節補綴。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8704211-5 | 1987-10-29 | ||
SE8704211A SE466732B (sv) | 1987-10-29 | 1987-10-29 | Ledprotes, innefattande en ledkropp mellan ett par tappar foer infaestning i ben |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH03501810A true JPH03501810A (ja) | 1991-04-25 |
JP2746969B2 JP2746969B2 (ja) | 1998-05-06 |
Family
ID=20370047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63508898A Expired - Lifetime JP2746969B2 (ja) | 1987-10-29 | 1988-10-28 | 関節補綴 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5011497A (ja) |
EP (1) | EP0391932B1 (ja) |
JP (1) | JP2746969B2 (ja) |
DE (1) | DE3874754T2 (ja) |
SE (1) | SE466732B (ja) |
WO (1) | WO1989003663A1 (ja) |
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US3593342A (en) * | 1969-01-27 | 1971-07-20 | Cutter Lab | Prosthetic joint |
GB1306027A (ja) * | 1970-08-04 | 1973-02-07 | ||
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DE2808740A1 (de) * | 1978-03-01 | 1979-09-06 | Omar Pacha Nabil Dr | Gelenkprothese |
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DE3008292A1 (de) * | 1979-03-05 | 1980-09-11 | Howmedica | Mittelhand-fingerknochengelenkprothese |
US4352212A (en) * | 1979-03-05 | 1982-10-05 | Howmedica, Inc. | Joint prosthesis |
FR2484826B1 (fr) * | 1980-06-19 | 1985-10-04 | Gauthier Georges | Perfectionnement aux protheses articulaires |
EP0278184A1 (fr) * | 1987-02-11 | 1988-08-17 | Thierry Hermann | Prothèse d'articulation, en particulier pour articulation de doigt |
JPH01136655A (ja) * | 1987-11-24 | 1989-05-29 | Asahi Optical Co Ltd | 人工椎間板 |
-
1987
- 1987-10-29 SE SE8704211A patent/SE466732B/sv not_active IP Right Cessation
-
1988
- 1988-10-28 WO PCT/SE1988/000580 patent/WO1989003663A1/en active IP Right Grant
- 1988-10-28 JP JP63508898A patent/JP2746969B2/ja not_active Expired - Lifetime
- 1988-10-28 EP EP88909624A patent/EP0391932B1/en not_active Expired - Lifetime
- 1988-10-28 US US07/473,992 patent/US5011497A/en not_active Expired - Fee Related
- 1988-10-28 DE DE8888909624T patent/DE3874754T2/de not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012115683A (ja) * | 2005-01-19 | 2012-06-21 | Nexgen Spine Inc | 剛体構造物へのエラストマーの固定 |
US8864831B2 (en) | 2005-01-19 | 2014-10-21 | K2M, Inc. | Fixation of elastomer to rigid structures |
Also Published As
Publication number | Publication date |
---|---|
WO1989003663A1 (en) | 1989-05-05 |
EP0391932B1 (en) | 1992-09-16 |
EP0391932A1 (en) | 1990-10-17 |
SE8704211D0 (sv) | 1987-10-29 |
US5011497A (en) | 1991-04-30 |
SE8704211L (sv) | 1989-04-30 |
DE3874754D1 (de) | 1992-10-22 |
SE466732B (sv) | 1992-03-30 |
DE3874754T2 (de) | 1993-03-04 |
JP2746969B2 (ja) | 1998-05-06 |
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