JP2014018664A - 多軸骨固定装置 - Google Patents
多軸骨固定装置 Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
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- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
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- 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
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
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- 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
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
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- 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
- A61B2017/681—Alignment, compression, or distraction mechanisms
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- 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
- A61B17/8665—Nuts
- A61B2017/867—Nuts with integral locking or clamping means
- A61B2017/8675—Nuts with integral locking or clamping means clamping effect due to tapering, e.g. conical thread
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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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30495—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism using a locking ring
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Abstract
【解決手段】ヘッド3およびシャンクを含む骨固定要素1と、ロッドを骨固定要素に結合するための受入部分4′′とを含み、受入部分は、第1の端部4aと、対向する第2の端部4bと、第1および第2の端部とを通って延在する中心軸Cとを含み、多軸骨固定装置はさらに、ロッドを受け入れるためのチャネル9およびヘッドを受け入れるための収容スペース11と、受入部分に配されるとともに圧力をヘッドにかける圧力要素6′′とを含み、圧力要素6は、ヘッドから離れるように向いている柔軟なセクション66a′′,66b′′を含み、柔軟なセクションは、ヘッドがロックされる前にヘッドに予荷重をかける位置に圧力要素6を保持するよう、受入部分4の傾斜した表面部分と協働する、中心軸に対する自由端部分を含む構成とする。
【選択図】図28a
Description
Claims (21)
- 多軸骨固定装置であって、
ヘッド(3)およびシャンク(2)を含む骨固定要素(1)と、
ロッド(100)を前記骨固定要素に結合するために前記ロッドを受け入れるための受入部分(4,4′,4″,4′″)とを含み、前記受入部分は、第1の端部(4a)と、対向する第2の端部(4b)と、前記第1の端部および前記第2の端部を通って延在する中心軸(C)とを含み、前記多軸骨固定装置はさらに、
前記ロッドを受け入れるためのチャネル(9)および前記ヘッドを受け入れるための収容スペース(11)と、
前記受入部分に配されるとともに圧力を前記ヘッドにかけるよう構成される圧力要素(6,6′,6″)とを含み、
前記圧力要素(6,6′)は、少なくとも1つの柔軟なセクション(66a,66b;66a′,66b′)を含む多軸骨固定装置において、前記少なくとも1つの柔軟なセクション(66a,66b;66a′,66b′;66a″,66b″)は、前記ヘッドがロックされる前に前記ヘッドに予荷重をかける位置に前記圧力要素(6,6′;6″)を保持するよう、前記受入部分(4,4′;4″,4′″)の傾斜した表面部分(15a,15b;32a,32b;15a″,15b″)と協働するかまたは突出した縁部(151a,151b)と協働する自由端部分(69a,69b;69a′,69b′,69a″,69b″)を有することを特徴とする、多軸骨固定装置。 - 前記少なくとも1つの柔軟なセクション(66a,66b;66a′,66b′;66a″,66b″)は少なくとも1つの直立した弾力のある指部(66a,66b;66a′,66b′;66a″,66b″)によって形成される、請求項1に記載の多軸骨固定装置。
- 前記少なくとも1つの柔軟なセクション(66a,66b;66a′,66b′;66a″,66b″)は、前記受入部分の前記中心軸(C)に向かって屈曲するよう構成される、請求項1または2に記載の多軸骨固定装置。
- 前記圧力要素(6,6′,6″)は、前記少なくとも1つの柔軟なセクション(66a,66b;66a′,66b′;66a″,66b″)上の自由端部分に少なくとも1つの傾斜した表面部分(69a,69b;69a′,69b′)を含み、前記圧力要素の前記柔軟なセクション(66a,66b;66a′,66b′;66a″,66b″)が屈曲した構成にある際に、前記圧力要素の前記傾斜した表面部分(69a,69b;69a′,69b′,69a″,69b″)と、前記受入部分の対応する傾斜した表面部分(15a,15b;32a,32b;15a″,15b″)または縁部(151a,151b)とは係合する、請求項1〜3のいずれか1項に記載の多軸骨固定装置。
- 前記圧力要素(6,6′,6″)が前記ヘッド(3)に向かって動かされる際でも、前記圧力要素(6,6′,6″)の柔軟なセクションの自由端部分(69a,69b;69a′,69b′;69a″,69b″)と、前記受入部分(4,4′,4″)の対応する傾斜した表面部分(15a,15b;32a,32b;15a″,15b″)または縁部とは、係合したままである、請求項1〜4のいずれか1項に記載の多軸骨固定装置。
- 中心軸(C)に対する前記受入部分(4,4′)の傾斜した表面部分(15a,15b;32a,32b)の傾斜角(α)は、前記圧力要素の柔軟なセクションの自由端部分(69a,69b;69a′,69b′,69a″,69b″)と、前記受入部分の傾斜した表面部分(15a,15b;32a,32b)または縁部(151a,151b)との係合によって、前記ヘッドに向かうよう方向付けされた力が前記圧力要素上に生成されるような傾斜角である、請求項1〜5のいずれか1項に記載の多軸骨固定装置。
- 前記受入部分(15a,15b;32a,32b)の傾斜した表面部分の傾斜角(α)は約70°未満であって、好ましくは約25°である、請求項1〜6のいずれか1項に記載の多軸骨固定装置。
- 前記柔軟なセクションの傾斜した表面部分(69a,69b;69a′,69b′)の傾斜角は、前記中心軸(C)に対する前記受入部分の傾斜した表面部分(15a,15b;32a,32b)の傾斜角(α)よりも小さいかまたは傾斜角(α)と同じである、請求項4〜7のいずれか1項に記載の多軸骨固定装置。
- 前記ロッド(100)を間に囲うよう構成される2つの柔軟なセクション(66a,66b;66a′,66b′;66a″,66b″)が前記圧力要素(6,6′,6″)上に設けられる、請求項1〜8のいずれか1項に記載の多軸骨固定装置。
- 前記受入部分(4,4′)は、前記圧力要素(6,6′)を収容するための同軸孔(8)を含み、前記受入部分(4)の傾斜した表面部分(15a,15b)は、前記受入部分の内壁に形成される円錐形に形状決めされた凹部(15)によって与えられている、請求項1〜9のいずれか1項に記載の多軸骨固定装置。
- 前記受入部分の傾斜した表面部分(32a,32b)は、前記受入部分(4′)の壁を通って延在するピン(30a,30b)によって与えられている、請求項1〜10のいずれか1項に記載の多軸骨固定装置。
- 前記中心軸(C)に向かうよう方位付けされた前記ピン(30a,30b)の表面(32a,32b)はテーパされている、請求項11に記載の多軸骨固定装置。
- 前記圧力要素の前記柔軟なセクションの自由端部分は、前記受入部分(4″)の傾斜した表面部分(15a″,15b″)と係合する丸くされた縁部(69a″,69b″)を含む、請求項1〜12のいずれか1項に記載の多軸骨固定装置。
- 前記圧力要素の柔軟なセクションの自由端部分は、傾斜した表面部分(15a,15b,15a′,15b′)を含み、前記受入部分(4′″)は、前記傾斜した表面部分と協働する縁部(151a,151b)を含む、請求項1〜12のいずれか1項に記載の多軸骨固定装置。
- 前記圧力要素(6,6′;6″)は、前記受入部分(4,4′)の第1の端部(4a)を通って外れないように、好ましくは固定装置によって固定される、請求項1〜14のいずれか1項に記載の多軸骨固定装置。
- 前記固定装置は、円周方向に延在するとともに受入部分(4″)にモノリシックに形成されるステップの形態で前記受入部分(4″)の内壁に設けられる停止部(8b)である、請求項15に記載の多軸骨固定装置。
- 前記ヘッド(3)は、前記収容スペース(11)に収容されるスリーブ状の挿入片(5)に配置されており、前記ヘッドが前記受入部分(4,4′,4″)の第2の端部(4b)にある開口部(12)を通って外れるのを防止する、請求項1〜16のいずれか1項に記載の多軸骨固定装置。
- 前記受入部分(4,4′,4″;4′″)に対して前記ヘッドをロックするよう前記圧力要素(6,6′,6″)に直接的または間接的に圧力をかけるよう構成されるロック装置(7)が設けられる、請求項1〜17のいずれか1項に記載の多軸骨固定装置。
- 前記スリーブ状の挿入片(5)が、前記収容スペース(11)において回転および旋回するよう構成される、請求項17または18に記載の多軸骨固定装置。
- 前記柔軟なセクション(66a,66b;66a′,66b′,66a″,66b″)は、前記圧力要素の、前記ヘッド(3)に面する側とは反対の側上に配置されている、請求項1〜19のいずれか1項に記載の多軸骨固定装置。
- 前記圧力要素または前記受入部分のいずれかの傾斜した表面部分(15a,15b;32a,32b;15a″,15b″,69a,69b,69a′,69b′)は、前記圧力要素が前記受入部分内に配される際に、前記受入部分の上端部(4a)により近い上部端部と、前記受入部分の底端部(4b)により近い下部端部とを有し、傾きは、前記上部端部が前記下部端部よりも前記中心軸(C)により近いような傾きである、請求項1〜20のいずれか1項に記載の多軸骨固定装置。
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
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US201261673110P | 2012-07-18 | 2012-07-18 | |
US61/673,110 | 2012-07-18 | ||
EP12176959.0 | 2012-07-18 | ||
EP20120176959 EP2687171B1 (en) | 2012-07-18 | 2012-07-18 | Polyaxial bone anchoring device |
US201361789431P | 2013-03-15 | 2013-03-15 | |
US61/789,431 | 2013-03-15 |
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JP2014018664A true JP2014018664A (ja) | 2014-02-03 |
JP6076216B2 JP6076216B2 (ja) | 2017-02-08 |
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US (5) | US9241737B2 (ja) |
EP (2) | EP2687171B1 (ja) |
JP (1) | JP6076216B2 (ja) |
KR (1) | KR20140011274A (ja) |
CN (1) | CN103565504B (ja) |
ES (2) | ES2539388T3 (ja) |
TW (1) | TW201406340A (ja) |
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Also Published As
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US11129647B2 (en) | 2021-09-28 |
US20140025119A1 (en) | 2014-01-23 |
ES2539388T3 (es) | 2015-06-30 |
US11963698B2 (en) | 2024-04-23 |
US20160192966A1 (en) | 2016-07-07 |
US9241737B2 (en) | 2016-01-26 |
EP2687172A1 (en) | 2014-01-22 |
EP2687171A1 (en) | 2014-01-22 |
EP2687171B1 (en) | 2015-04-22 |
US20190053829A1 (en) | 2019-02-21 |
KR20140011274A (ko) | 2014-01-28 |
CN103565504A (zh) | 2014-02-12 |
US20240341818A1 (en) | 2024-10-17 |
ES2536731T3 (es) | 2015-05-28 |
US20220039838A1 (en) | 2022-02-10 |
EP2687172B1 (en) | 2015-03-11 |
CN103565504B (zh) | 2017-07-28 |
TW201406340A (zh) | 2014-02-16 |
JP6076216B2 (ja) | 2017-02-08 |
US10076362B2 (en) | 2018-09-18 |
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