JP5357330B2 - 人工椎間板 - Google Patents
人工椎間板 Download PDFInfo
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- JP5357330B2 JP5357330B2 JP2012513456A JP2012513456A JP5357330B2 JP 5357330 B2 JP5357330 B2 JP 5357330B2 JP 2012513456 A JP2012513456 A JP 2012513456A JP 2012513456 A JP2012513456 A JP 2012513456A JP 5357330 B2 JP5357330 B2 JP 5357330B2
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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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
- A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
-
- 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
- A61F2002/30062—(bio)absorbable, biodegradable, bioerodable, (bio)resorbable, resorptive
-
- 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
- A61F2002/30079—Properties of materials and coating materials magnetic
-
- 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
- A61F2002/30199—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
- A61F2002/30316—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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/305—Snap connection
-
- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30505—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism spring biased
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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
- A61F2002/30535—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
- A61F2002/30566—Helical 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
- A61F2002/30604—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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30607—Kits of prosthetic parts to be assembled in various combinations for forming different prostheses
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30647—Joints made of two toroidal rings engaged together
-
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket 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
- 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
- A61F2002/30621—Features concerning the anatomical functioning or articulation of the prosthetic joint
- A61F2002/30649—Ball-and-socket joints
- A61F2002/30662—Ball-and-socket joints with rotation-limiting means
-
- 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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
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- Engineering & Computer Science (AREA)
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- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
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- Prostheses (AREA)
Description
上関節及び下関節の間に固定連結関係を形成するステップと、
上関節及び下関節が共に前記椎体終板下骨と生物的固定された後、上関節及び下関節の間の固定連結関係を解除するステップと
を含む。
上関節が下関節に対して、又は下関節が上関節に対して、該人工椎間板で置換される椎間板の軸線に垂直する方向に移動する運動と、
上関節及び/又は下関節が、該人工椎間板で置換される椎間板の軸線に平行又は重合すると共に該関節を貫く回転軸線を回りに回転する運動と
の少なくとも一つを規制する。
上関節が下関節に対して、又は下関節が上関節に対して、該人工椎間板で置換される椎間板の軸線に垂直する方向に移動する運動と、
上関節及び/又は下関節が該人工椎間板で置換される椎間板の軸線に平行または重合する該関節を貫く回転軸線を回りに回転する運動と
の少なくとも一つを規制する。
前記取り外し可能な固定連結構造は、上関節と下関節との間に設置されるリング部材を含み、
前記リング部材は気体入り構造を有し、リング部材内に気体や液体が充填されると、前記ボール・ソケット構造が該リング部材の内部に設置され、リング部材の上端及び下端がそれぞれ上関節及び下関節と当接し、リング部材と上、下関節の間の摩擦力により、前記運動を規制しており、
リング部材内の気体や液体が排出された場合、前記運動への規制を解除する。
前記取り外し可能な固定連結構造は上関節と下関節との間に設置されるリング部材を含み、
前記ボール・ソケット構造がリング部材の内部に設置され、且つ、前記リング部材は該人工椎間板で置換される椎間板の軸線の方向に沿って移動でき、
リング部材が上関節と当接するとき、リング部材と上関節の間に摩擦力が作用すると共に、下関節上に取り外し可能な支持体が設置されリング部材を支持する場合、前記運動を規制しており、
前記支持体を取り外すと、前記運動への規制を解除する。
ばねが伸ばしている状態で、ピンは下関節から離れる方向へ伸ばしてリング部材を支持し、且つリング部材にはピンの接触部位に対応して溝が設けられ、ばねがある程度圧縮されると、ピンは下関節の方向へ収縮され、リング部材への支持を解除する。
2 突起
3 上関節
4 ボール
5 リング部材
6 溝
7 下関節
8 ピン孔
9 ピン
10 締付けリング
11 ばね
12 ばね
Claims (6)
- 上下の位置関係に基づいて合わせられる上関節及び下関節を含み、さらに前記上関節と前記下関節とを固定して連結する取り外し可能な中間構造を含む人工椎間板であって、
前記中間構造は、
前記上関節が前記下関節に対して、又は前記下関節が前記上関節に対して該人工椎間板で置換される椎間板の軸線に垂直な方向に移動する運動と、
前記上関節及び/又は前記下関節が該人工椎間板で置換される椎間板の軸線に平行または重合する該関節を貫く回転軸線回りに回転する運動との少なくとも一つを規制し、
前記上関節及び前記下関節はボール・ソケット構造により組み合わされ、
前記中間構造は前記上関節と前記下関節との間に設置されるリング部材を含み、
前記ボール・ソケット構造が前記リング部材の内環側に設置され、且つ、前記リング部材は該人工椎間板で置換される椎間板の軸線の方向に沿って移動でき、
前記リング部材が前記上関節と当接するとき、前記リング部材と前記上関節との間に摩擦力が作用すると共に、前記下関節上に取り外し可能な支持体が設置され前記リング部材を支持する場合、前記運動を規制し、
前記支持体を取り外すと、前記運動の規制を解除することを特徴とする人工椎間板。 - 前記リング部材の前記上関節に対する支持面積をできるだけ大きくするように、前記リング部材の前記上関節と接触する端面を、前記上関節の対応する端部の端面に合わせることを特徴とする請求項1に記載の人工椎間板。
- 前記取り外し可能な支持体は、ばねが設置されたピンであり、前記ばねは前記ピン及び前記下関節によって挟まれ、前記ばねの伸縮方向が前記ピンの軸線に平行であり、
前記ばねが伸びている状態で、前記ピンは前記下関節から離れる方向へ伸びて前記リング部材を支持し、かつ前記リング部材には前記ピンの接触部位に対応して溝が設けられ、
前記ばねがある程度圧縮されると、前記ピンは前記下関節の方向へ収縮され、前記リング部材の支持を解除することを特徴とする請求項1または2に記載の人工椎間板。 - 前記ピンの材質は磁性材料であることを特徴とする請求項3に記載の人工椎間板。
- 前記取り外し可能な支持体は前記リング部材を固定して支持する支持子であり、前記支持子の材質が分解可能な材料であることを特徴とする請求項1または2に記載の人工椎間板。
- 上下の位置関係に基づいて合わせられる上関節及び下関節を含み、さらに前記上関節と前記下関節とを固定して連結する取り外し可能な中間構造を含む人工椎間板であって、
前記中間構造は、
前記上関節が前記下関節に対して、又は前記下関節が前記上関節に対して該人工椎間板で置換される椎間板の軸線に垂直な方向に移動する運動と、
前記上関節及び/又は前記下関節が該人工椎間板で置換される椎間板の軸線に平行または重合する該関節を貫く回転軸線回りに回転する運動との少なくとも一つを規制し、
前記上関節及び前記下関節はボール・ソケット構造により組み合わされ、
前記中間構造は、前記上関節と前記下関節との間に設置されるリング部材を含み、
前記リング部材は気体入り構造を有し、前記リング部材内に気体又は液体が充填されると、前記ボール・ソケット構造が該リング部材の内部に設置され、前記リング部材の上端及び下端がそれぞれ前記上関節及び前記下関節と当接し、前記リング部材と前記上関節及び前記下関節との間の摩擦力により、前記運動を規制し、
前記リング部材内の前記気体又は液体が排出された場合、前記運動の規制を解除することを特徴とする人工椎間板。
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CN2009100851506A CN101559003B (zh) | 2009-06-02 | 2009-06-02 | 人工椎间盘 |
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PCT/CN2010/072787 WO2010139231A1 (zh) | 2009-06-02 | 2010-05-14 | 人工椎间盘 |
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US8287598B1 (en) * | 2011-12-05 | 2012-10-16 | TrueMotion Spine, Inc. | True spinal motion preserving, shock absorbing, intervertebral spinal disc prosthesis |
CN104251796A (zh) * | 2014-09-18 | 2014-12-31 | 深圳清华大学研究院 | 一种模拟人工椎间盘球窝样品及其制备方法和应用 |
CN112535556B (zh) * | 2020-11-02 | 2022-04-08 | 淮阴工学院 | 一种气囊式人工颈椎间盘假体 |
CN117618166B (zh) * | 2024-01-25 | 2024-04-26 | 中国人民解放军总医院第一医学中心 | 椎间植入部件 |
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EP1555966A4 (en) * | 2002-10-29 | 2011-03-16 | Spinecore Inc | INSTRUMENTS, METHODS, AND APPLICATIONS FOR IMPLANTING AN ARTIFICIAL BAND DISC |
ATE394087T1 (de) * | 2002-12-17 | 2008-05-15 | Synthes Gmbh | Zwischenwirbelimplantat |
NZ540265A (en) * | 2002-12-17 | 2006-04-28 | Synthes Gmbh | Intervertebral implant with joint parts mounted on roller bodies |
CA2542511C (en) * | 2003-07-22 | 2011-07-05 | Synthes Gmbh | Intervertebral implant with temporary blocking means |
US20050165486A1 (en) * | 2004-01-27 | 2005-07-28 | Sdgi Holdings, Inc. | Prosthetic device and method |
US7485145B2 (en) * | 2004-02-23 | 2009-02-03 | Alphatec Spine, Incorporated | Artificial intervertebral disc assembly |
KR20070033463A (ko) * | 2004-07-09 | 2007-03-26 | 파이어니어 래보러토리즈, 인크. | 골격 재구성 장치 |
US20060111783A1 (en) * | 2004-11-24 | 2006-05-25 | Kamran Aflatoon | Articulating spinal disc prosthetic |
US20070021837A1 (en) * | 2005-07-20 | 2007-01-25 | Ashman Richard B | Stabilizing augment for prosthetic disc |
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US8092533B2 (en) * | 2006-10-03 | 2012-01-10 | Warsaw Orthopedic, Inc. | Dynamic devices and methods for stabilizing vertebral members |
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US8974529B2 (en) | 2015-03-10 |
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US20120095562A1 (en) | 2012-04-19 |
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