JP5015557B2 - 骨固定装置 - Google Patents
骨固定装置 Download PDFInfo
- Publication number
- JP5015557B2 JP5015557B2 JP2006310229A JP2006310229A JP5015557B2 JP 5015557 B2 JP5015557 B2 JP 5015557B2 JP 2006310229 A JP2006310229 A JP 2006310229A JP 2006310229 A JP2006310229 A JP 2006310229A JP 5015557 B2 JP5015557 B2 JP 5015557B2
- Authority
- JP
- Japan
- Prior art keywords
- pressing
- bone anchoring
- pressing element
- anchoring device
- connecting element
- 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 - Fee Related
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Classifications
-
- 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
-
- 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
- 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
-
- 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
-
- 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
-
- 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
- A61B17/7002—Longitudinal elements, e.g. rods
- A61B17/7019—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other
- A61B17/7031—Longitudinal elements having flexible parts, or parts connected together, such that after implantation the elements can move relative to each other made wholly or partly of flexible material
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
576 C1から公知である。弾性材料でできた可撓性のあるロッドをこのような骨ねじとともに用いると、内部固定ねじによってロッドに加えられる圧力により弾性材料が変形し、結果としてその固定が緩むおそれがある。
。雌ねじ16と内部ねじ30の協働するねじ山とは、公知のいかなるねじ山形状を有していてもよい。しかしながら、平坦なねじ山または負角のねじ山には、脚部14、15が広がらないという利点がある。
いてもよい。キャップ40は、ロッドが十分な剛性を有する場合には省かれてもよい。ロッドの弾性は多様であり得る。ロッドには、大いに可撓性があってもよく、またはほとんど可撓性がなくてもよい。ロッド面は、テクスチャ加工されていてもよく、または構造化されていてもよい。
この発明は骨固定要素としてのねじに限定されず、骨フックまたは他のいかなる骨固定要素とも実現することができる。
Claims (11)
- 骨固定装置であって、
骨または脊椎骨に固定されるべきシャンク(2)、および頭部(4)を含む固定要素(1)と、
少なくとも2つの固定要素を接続するための接続要素(20)と、
受部(6)とを含み、前記受部(6)は、前記受部において回動可能である前記頭部(4)を受ける第1の端部と、前記接続要素(20)を受けるための窪み(13)を含む第2の端部とを有し、前記骨固定装置はさらに、
前記受部(6)に前記頭部を固定するよう前記頭部(4)に押付ける第1の押圧要素(17)と、
前記接続要素を前記第1の押圧要素(17)に押当てるよう前記接続要素(20)に押付ける第2の押圧要素(23)とを含み、
前記接続要素(20)に面する少なくとも前記第1の押圧要素(17)または前記第2の押圧要素(23)の表面の輪郭は、前記接続要素の表面の輪郭からずれており、
前記接続要素(20)は弾性材料でできており、前記第1の押圧要素(17)および前記第2の押圧要素(23)は接触面(17a、26a)を含み、これを介して前記第1の押圧要素(17)が前記第2の押圧要素(23)に直接圧力を加える、骨固定装置。 - 前記接続要素はロッドである、請求項1に記載の骨固定装置。
- 前記接続要素(20)に面する前記第1および第2の押圧要素(17、23)の表面は、前記接続要素の表面の輪郭からずれている、請求項1または2に記載の骨固定装置。
- 前記輪郭からのずれは突起および/または窪みである、請求項1から3のいずれかに記載の骨固定装置。
- 前記輪郭からのずれはリブ状またはピン状の構造を有する、請求項1から4のいずれかに記載の骨固定装置。
- 前記第1の押圧要素(17)は、前記接続要素を受ける窪み(19)を含み、前記第2の押圧要素(23)は、前記接続要素に面する窪み(27)を含み、前記第2の押圧要素(23)に圧力が加えられると、前記窪みが、前記接続要素(20)を囲むケージ状の構造を形成する、請求項1から5のいずれかに記載の骨固定装置。
- 前記ケージ状の構造の断面は、前記接続要素(20)の断面よりもわずかに小さい、請求項6に記載の骨固定装置。
- 前記窪み(13)を閉じ、前記第2の押圧要素(23)に押付けるクロージャ要素(30)が設けられる、請求項1から7のいずれかに記載の骨固定装置。
- 前記第1の押圧要素(17)または前記第2の押圧接続要素(20)の輪郭のずれは、前記接続要素の長手方向に対して垂直な方向に延在する、請求項1から8のいずれかに記載の骨固定装置。
- 前記突起および窪みの体積は、実質的に互いに類似している、請求項4に記載の骨固定装置。
- 前記接続要素(20)に面する前記第1の押圧要素(17)の表面は、組立てられ締められた状態で、前記受部(6)の前記接続要素を受けるための前記窪み(13)の上方に延在する、請求項1から10のいずれかに記載の骨固定装置。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73800705P | 2005-11-17 | 2005-11-17 | |
EP05025161A EP1795134B1 (en) | 2005-11-17 | 2005-11-17 | Polyaxial screw for flexible rod |
US60/738,007 | 2005-11-17 | ||
EP05025161.0 | 2005-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007136196A JP2007136196A (ja) | 2007-06-07 |
JP5015557B2 true JP5015557B2 (ja) | 2012-08-29 |
Family
ID=36011003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006310229A Expired - Fee Related JP5015557B2 (ja) | 2005-11-17 | 2006-11-16 | 骨固定装置 |
Country Status (8)
Country | Link |
---|---|
US (2) | US7731749B2 (ja) |
EP (1) | EP1795134B1 (ja) |
JP (1) | JP5015557B2 (ja) |
KR (1) | KR101306894B1 (ja) |
CN (1) | CN1965770B (ja) |
DE (1) | DE602005008752D1 (ja) |
ES (1) | ES2313189T3 (ja) |
TW (1) | TWI419673B (ja) |
Families Citing this family (141)
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KR101306894B1 (ko) | 2013-09-10 |
EP1795134B1 (en) | 2008-08-06 |
US20100286731A1 (en) | 2010-11-11 |
CN1965770B (zh) | 2010-09-01 |
ES2313189T3 (es) | 2009-03-01 |
CN1965770A (zh) | 2007-05-23 |
KR20070052662A (ko) | 2007-05-22 |
US9226778B2 (en) | 2016-01-05 |
EP1795134A1 (en) | 2007-06-13 |
US7731749B2 (en) | 2010-06-08 |
TW200724081A (en) | 2007-07-01 |
DE602005008752D1 (de) | 2008-09-18 |
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