JP2004183896A - シャフトおよびそれと接続される保持要素を有し、ロッドと接続するための要素 - Google Patents
シャフトおよびそれと接続される保持要素を有し、ロッドと接続するための要素 Download PDFInfo
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- 210000000988 bone and bone Anatomy 0.000 description 9
- 239000007943 implant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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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
- 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
- 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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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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Abstract
【解決手段】 ロッド(100)と接続するために、シャフト(1)およびそれと接続される保持要素(3;30)を有する要素が提供される。保持要素は、ロッドを収容するためのU字形の断面を有する凹みを含み、一方端に、内ねじ溝(9;34)を含む2つの自由な脚(7,8;32,33)を有する。U字形の凹みに挿入されたロッドを固定するための閉鎖要素(20;36)が与えられ、これは脚の内ねじ溝と協働する外ねじ溝を有する。保持要素に、または保持要素において、固定部が与えられ、これは閉鎖要素を最終的に締めるときにロッドのまわりでの閉鎖要素の傾きを制限する。その結果、最終的に締めるときに作用する大きな力にもかかわらず、収容部材の壁の厚さを薄い状態で維持することが可能である。本発明は、単軸ねじおよび多軸ねじの双方に適用可能である。
【選択図】 図1
Description
ねじが傾いた場合の支持として作用し、内ねじの端に対して小さな矢印によって示された抗力を与え、これによって締めるときに脚の歪みが妨げられる。したがって、第1の実施例と同じ効力が達成される。
Claims (10)
- シャフト(1)およびそれと接続される保持要素(3;30)を有し、ロッド(100)と接続するための要素であって、該保持要素(3;30)は、該ロッドを収容するためのU字形の断面を有する凹みと、一方端に、内ねじ溝(9;34)を有する2つの自由な脚(7,8;32,33)とを含み、該要素はさらに、
該U字形の凹みに挿入される該ロッドを固定するための閉鎖要素(20;36)を含み、前記閉鎖要素は、該脚の該内ねじ溝と協働する外ねじ溝を含み、前記要素は、
該保持要素(3;30)に、または該保持要素において、該閉鎖要素を最終的に締めるときに、該ロッドのまわりでの該閉鎖要素の傾きを制限する固定部が設けられることを特徴とする、要素。 - 該固定部は、該ロッドに面する該閉鎖要素(20;36)の下方側の部分のための支持面(12,37)によって形成される、請求項1に記載の要素。
- 該U字形の凹みの底面から支持面(12;37)の間の距離(A)は、該ロッドの直径(D)よりも小さい、請求項2に記載の要素。
- 該距離(A)は、該直径(D)の約1%から7.5%の量ほど該直径(D)よりも小さい、請求項3に記載の要素。
- 該固定部は、該保持要素(30)の該自由な脚(32,33)の内部に設けられた突起(37)として形成される、請求項1から4のうちの1つに記載の要素。
- 該シャフト(1)および該保持要素(30)は、単軸で接続され、好ましくは1つの部品に形成される、請求項1〜5のうちの1つに記載の要素。
- 該シャフト(1)は、一方端で、該保持要素に多軸に接続されたヘッド(2)を有し、該ヘッドに作用する圧力要素(10)は、角の位置を固定するために設けられ、該固定部は該圧力要素(10)に設けられる、請求項1から4のうちの1つに記載の要素。
- 該圧力要素(10)は、該保持要素(3)の該凹みに対応するU字形の凹み(14)を含み、該固定部は、該凹みによって形成される脚(15,16)の自由端(12)によって形成される、請求項7に記載の要素。
- 該U字形の凹みの底面から該圧力要素の該自由端(12)の距離(A)は、該ロッドの直径(D)よりも小さい、請求項8に記載の要素。
- 該脚(7,8;32,33)の該内ねじ溝、および該閉鎖要素(20;36)の該外ねじ溝は、メートルねじ溝、鋸歯ねじ溝、負の角度を有する負荷のフランクを有するねじ溝、または平らなねじ溝として形成される、請求項1から9のうちの1つに記載の要素。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10256095A DE10256095B4 (de) | 2002-12-02 | 2002-12-02 | Element mit einem Schaft und einem damit verbundenen Halteelement zum Verbinden mit einem Stab |
Publications (2)
Publication Number | Publication Date |
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JP2004183896A true JP2004183896A (ja) | 2004-07-02 |
JP4338505B2 JP4338505B2 (ja) | 2009-10-07 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003401789A Expired - Lifetime JP4338505B2 (ja) | 2002-12-02 | 2003-12-01 | シャフトおよびそれと接続される保持要素を有し、ロッドと接続するためのインプラント |
Country Status (4)
Country | Link |
---|---|
US (3) | US7335202B2 (ja) |
EP (1) | EP1426016B1 (ja) |
JP (1) | JP4338505B2 (ja) |
DE (2) | DE10256095B4 (ja) |
Cited By (5)
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JP2007136196A (ja) * | 2005-11-17 | 2007-06-07 | Biedermann Motech Gmbh | 骨固定装置 |
JP2009532632A (ja) * | 2006-03-30 | 2009-09-10 | アトラス・コプコ・ツールス・アクチボラグ | 要素を管状部材に取付ける装着装置 |
JP2009273885A (ja) * | 2008-05-13 | 2009-11-26 | Spinelab Ag | 固定装置を備えたペディクルスクリュー |
JP2010538743A (ja) * | 2007-09-17 | 2010-12-16 | ロジャー・ピー・ジャクソン | 単体閉被部、圧縮挿入体及びプラスチック棒状部材を備えた多軸骨用留め具アセンブリ |
JP2017512098A (ja) * | 2014-03-12 | 2017-05-18 | セーフ オルソペディクスSafe Orthopaedics | スクリュヘッドに対して骨アンカー要素を矯正するための手段を備えた骨接合システム、および該システムに実装されたアンカースクリュ |
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2003
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- 2003-10-17 EP EP03023647A patent/EP1426016B1/de not_active Expired - Lifetime
- 2003-12-01 JP JP2003401789A patent/JP4338505B2/ja not_active Expired - Lifetime
- 2003-12-01 US US10/726,177 patent/US7335202B2/en not_active Expired - Lifetime
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JP2007136196A (ja) * | 2005-11-17 | 2007-06-07 | Biedermann Motech Gmbh | 骨固定装置 |
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JP2010538743A (ja) * | 2007-09-17 | 2010-12-16 | ロジャー・ピー・ジャクソン | 単体閉被部、圧縮挿入体及びプラスチック棒状部材を備えた多軸骨用留め具アセンブリ |
JP2009273885A (ja) * | 2008-05-13 | 2009-11-26 | Spinelab Ag | 固定装置を備えたペディクルスクリュー |
JP2017512098A (ja) * | 2014-03-12 | 2017-05-18 | セーフ オルソペディクスSafe Orthopaedics | スクリュヘッドに対して骨アンカー要素を矯正するための手段を備えた骨接合システム、および該システムに実装されたアンカースクリュ |
US10357286B2 (en) | 2014-03-12 | 2019-07-23 | Safe Orthopaedics | Osteosynthesis system comprising means for straightening a bone anchoring element relative to a screw head and anchoring screw implemented in such a system |
Also Published As
Publication number | Publication date |
---|---|
US20080167689A1 (en) | 2008-07-10 |
US7335202B2 (en) | 2008-02-26 |
EP1426016B1 (de) | 2006-08-30 |
JP4338505B2 (ja) | 2009-10-07 |
DE50304838D1 (de) | 2006-10-12 |
EP1426016A1 (de) | 2004-06-09 |
US20040186474A1 (en) | 2004-09-23 |
US20120109219A1 (en) | 2012-05-03 |
DE10256095B4 (de) | 2004-11-18 |
DE10256095A1 (de) | 2004-07-22 |
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