JP7010818B2 - 関節インプラント及び方法 - Google Patents
関節インプラント及び方法 Download PDFInfo
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- JP7010818B2 JP7010818B2 JP2018524417A JP2018524417A JP7010818B2 JP 7010818 B2 JP7010818 B2 JP 7010818B2 JP 2018524417 A JP2018524417 A JP 2018524417A JP 2018524417 A JP2018524417 A JP 2018524417A JP 7010818 B2 JP7010818 B2 JP 7010818B2
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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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- A61F2/42—Joints for wrists or ankles; for hands, e.g. fingers; for feet, e.g. toes
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1775—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the foot or ankle
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- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
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- A61F2/00—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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- 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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- 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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- 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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- 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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- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4606—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of wrists or ankles; of hands, e.g. fingers; of feet, e.g. toes
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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
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- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30011—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in porosity
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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
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- A61F2002/30199—Three-dimensional shapes
- A61F2002/30224—Three-dimensional shapes cylindrical
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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
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- A61F2002/30317—The prosthesis having different structural features at different locations within the same prosthesis
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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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- A61F2002/30316—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
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- 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
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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
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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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- 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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Description
本出願は、2015年11月12日に提出された米国仮特許出願第62/254282号明細書(参照によりその全体が本明細書に援用される)に対する優先権の利益を主張する。
実施例1は、インプラント軸線に沿ってその第1端からその反対側の第2端まで延びることができる円筒形部材を備える骨インプラントである。円筒形部材は、その中に配置され第1端から第2端へ向かって延びることができる空洞を有することができる。円筒形部材は、骨の内方成長を促進するための相互接続開気孔構造を含むことができる。関節部材は、関節部分と、関節部分から離れて延びるコア部分とを備えることができる。関節部材は、コア部分が円筒形部材に配置された空洞の中に延びるように円筒形部材に結合できる。関節部分は、円筒形部材の第1面に隣接して位置付けでき且つ円筒形部材の第1面を覆うようにインプラント軸線から半径方向外向きに延びることができる。
Claims (21)
- 骨インプラントであって、
インプラント軸線に沿って第1端からその反対側の第2端まで延びる円筒形部材であって、
当該円筒形部材が、その中に配置され前記第1端から前記第2端へ向かって延びる空洞を有し、
前記空洞が、前記第1端から前記第2端まで延び、且つ前記インプラント軸線に対して直交に測られる断面直径を有し、
前記断面直径が、前記第1端と前記第2端との間の第1の位置において最小値を有し、
前記断面直径が、前記第1の位置から前記第1端に向かってかつ前記第1の位置から前記第2端に向かって増大し、
前記断面直径が、前記第1端と前記第2端との少なくとも1つでのみ最大となり、
当該円筒形部材が、骨組織の内方成長を促進するための相互接続開気孔構造を備える、円筒形部材と、
関節部分と前記関節部分から離れて延びるコア部分とを備える関節部材であって、当該関節部材が、前記コア部分が前記円筒形部材に配置された前記空洞の中に延びるように、前記円筒形部材に結合され、当該関節部分が、前記円筒形部材の前記第1端に隣接して位置付けられ且つ前記円筒形部材の前記第1端を覆うように前記インプラント軸線から半径方向外向きに延び、前記コア部分が、前記インプラント軸線に沿って前記第1端から前記第2端まで各位置において前記空洞の前記断面直径と略一致する断面直径を有する、関節部材と、
を備える、骨インプラント。 - 前記関節部材が一体型である、請求項1に記載の骨インプラント。
- 前記関節部材が、ポリエチレン及びコバルトクロムの少なくとも1つを含む、請求項1又は2に記載の骨インプラント。
- 前記関節部分の関節面が、前記インプラント軸線を横切る平面に対して少なくとも部分的に凹状である、請求項1~3のいずれか1項に記載の骨インプラント。
- 前記関節部分の関節面が、前記インプラント軸線を横切る平面に対して少なくとも部分的に凸状である、請求項1~4のいずれか1項に記載の骨インプラント。
- 前記円筒形部材が、チタン合金及びタンタル合金の少なくとも1つを含む、請求項1~5のいずれか1項に記載の骨インプラント。
- 前記関節部材の前記コア部分が、前記円筒形部材の前記第1端から前記第2端まで延びる、請求項1~6のいずれか1項に記載の骨インプラント。
- システムであって、
第1骨インプラントであって、
ある外径を有し且つインプラント軸線に沿ってその第1端からその反対側の第2端まで延びる第1円筒形部材であって、当該第1円筒形部材が、その中に配置され前記第1端から前記第2端へ向かって延びる空洞を有し、前記空洞が、前記第1端から前記第2端まで延び、且つ前記インプラント軸線に対して直交に測られる断面直径を有し、前記断面直径が、前記第1端と前記第2端との間の第1の位置において最小値を有し、前記断面直径が、前記第1の位置から前記第1端に向かってかつ前記第1の位置から前記第2端に向かって増大し、前記断面直径が、前記第1端と前記第2端との少なくとも1つでのみ最大となり、当該第1円筒形部材が、骨組織の内方成長を促進するための相互接続開気孔構造を備える、第1円筒形部材と、
関節部分と前記関節部分から離れて延びるコア部分とを備える第1関節部材であって、当該第1関節部材が、前記コア部分が前記第1円筒形部材に配置された前記空洞の中に延びるように前記第1円筒形部材に結合され、前記関節部分が、前記第1円筒形部材の前記第1端に隣接して位置付けられて、前記第1円筒形部材の前記第1端を被うように前記インプラント軸線から半径方向外向きに延び、前記コア部分が、前記インプラント軸線に沿って前記第1端から前記第2端まで各位置において前記空洞の前記断面直径と略一致する断面直径を有する、第1関節部材と、
を備える、第1骨インプラントと、
第2骨インプラントであって、
ある外径を有し且つインプラント軸線に沿ってその第1端からその反対側の第2端まで延びる第2円筒形部材であって、当該第2円筒形部材が、骨組織の内方成長を促進するための相互接続開気孔構造を備える、第2円筒形部材と、
前記第2円筒形部材の前記第1端に近接する関節部分と、
を備える第2骨インプラントと、
を備え、
前記第1骨インプラントの前記第1円筒形部材の前記外径が、前記第2骨インプラントの前記第2円筒形部材の前記外径より小さい、
システム。 - 前記第1円筒形部材及び前記第2円筒形部材のいずれか又は両方が、チタン、チタン合金、タンタル及びタンタル合金の少なくとも1つを含む、請求項8に記載のシステム。
- 前記第2骨インプラントの前記関節部分及び前記第2円筒形部材が一体型である、請求項8又は9に記載のシステム。
- 前記第2骨インプラントの前記関節部分が非多孔質金属又は金属合金を含む、請求項8~10のいずれか1項に記載のシステム。
- 前記第2円筒形部材が、更に、その中に配置され前記第1端から前記第2端へ向かって延びる空洞を備え、前記第2骨インプラントが、更に、前記関節部分と前記関節部分から離れて延びるコア部分とを備える第2関節部材を備え、前記第2関節部材が、前記コア部分が前記第2円筒形部材に配置された前記空洞の中に延びるように前記第2円筒形部材に結合され、前記関節部分が、前記第2円筒形部材の前記第1端に隣接して位置付けられ且つ前記第2円筒形部材の前記第1端を覆うように前記インプラント軸線から半径方向外向きに延びる、請求項8に記載のシステム。
- 前記第1関節部材の前記関節部分の関節面が、前記インプラント軸線を横切る平面に対して少なくとも部分的に凹状である、請求項12に記載のシステム。
- 前記第2関節部材の前記関節部分の関節面が、前記インプラント軸線を横切る平面に対して少なくとも部分的に凸状である、請求項13に記載のシステム。
- 前記第1関節部材の前記関節部分の関節面が、前記インプラント軸線を横切る平面に対して少なくとも部分的に凸状である、請求項12に記載のシステム。
- 前記第2関節部材の前記関節部分の関節面が、前記インプラント軸線を横切る平面に対して少なくとも部分的に凹状である、請求項15に記載のシステム。
- 前記第1関節部材及び前記第2関節部材の少なくとも一方が一体型である、請求項12~16のいずれか1項に記載のシステム。
- 前記第1関節部材及び前記第2関節部材の少なくとも一方が、ポリエチレン及びコバルトクロムの少なくとも1つを含む、請求項12~17のいずれか1項に記載のシステム。
- 前記第1円筒形部材及び前記第2円筒形部材の少なくとも1つが、チタン合金及びタンタル合金の少なくとも1つを含む、請求項8~18のいずれか1項に記載のシステム。
- 前記第1円筒形部材に配置された前記空洞が、前記第1端から前記第2端まで延び、且つ、前記第1関節部材の前記コア部分が、前記第1円筒形部材の前記第1端から前記第2端まで延びる、請求項8~19のいずれか1項に記載のシステム。
- 前記第2円筒形部材に配置された前記空洞が、前記第1端から前記第2端まで延び、且つ、前記第2関節部材の前記コア部分が、前記第2円筒形部材の前記第1端から前記第2端まで延びる、請求項12に記載のシステム。
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