JP4531420B2 - 脊柱または骨の外科手術において用いるための固定要素およびその製造方法 - Google Patents
脊柱または骨の外科手術において用いるための固定要素およびその製造方法 Download PDFInfo
- Publication number
- JP4531420B2 JP4531420B2 JP2004066066A JP2004066066A JP4531420B2 JP 4531420 B2 JP4531420 B2 JP 4531420B2 JP 2004066066 A JP2004066066 A JP 2004066066A JP 2004066066 A JP2004066066 A JP 2004066066A JP 4531420 B2 JP4531420 B2 JP 4531420B2
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- JP
- Japan
- Prior art keywords
- threaded portion
- threaded
- rod
- fixing element
- free end
- 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 - Lifetime
Links
- 210000000988 bone and bone Anatomy 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 238000001356 surgical procedure Methods 0.000 title claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Images
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
- A61B17/70—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
-
- 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
-
- 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
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
容部の高さは、従来の固定要素に存在したはっきりとは定められない不完全ねじ部のねじ歯の分だけ、減じられる。
に、水平耐荷重フランクを備えた鋸歯ねじの形で、2つの水平フランクを備えた平らなねじ切り部(flat thread)の形で、または負の耐荷重フランク角を備えたねじ切り部の形で設けられることを企図する。この場合、内ねじ12は、合致する外側ねじ切り部を含む。ねじ切り部は、右巻きの形でも左巻きの形でも設けることができる。
する。
Claims (9)
- 椎骨または骨部分において固定するためのシャフト(1)と本質的に円筒形の収容部(2;22)とを備えた脊柱または骨の外科手術に用いるための固定要素であって、前記収容部(2;22)は、前記シャフトに接続され、かつ予め定められた直径(D)を備えたロッド(100)と接続する役割を果たし、それにより、前記収容部(2;22)は、前記ロッドの収容のためのチャネルおよび2本の脚(5,6;27,28)を備えたU字型凹み(3;26)を含み、前記脚(5,6;27,28)は、それらの端部が自由であってねじ切り部(8,13;30,31)を含み、前記固定要素はさらに、
前記脚の前記ねじ切り部と係合するねじ切り部を含む安定要素(12,16)を含み、それにより、前記ロッドが挿入されると、自由端(7;29)に対向するロッド表面は、軸方向において自由端(7;29)から予め定められた距離(A)にあり、
前記脚の前記ねじ切り部(8,13;30,31)は、前記自由端から見ると、自由端から、前記予め定められた距離(A)よりも小さいかまたは等しい距離に延在し、前記ねじ切り部に隣接するアンダーカット(9,14;33,34)があり、前記ねじ切り部から遠いその端縁は、自由端から、前記予め定められた距離(A)よりも長い距離(B,B’)に存在し、前記安定要素の軸方向の長さが、前記予め定められた距離(A)以下である、固定要素。 - 前記アンダーカット(9,14;33,34)の深さは、前記ねじ切り部の深さに対応することを特徴とする、請求項1に記載の固定要素。
- 前記ねじ切り部は内側ねじ切り部(8;33)であり、前記安定要素は内ねじ(12)として実現されることを特徴とする、請求項1または請求項2に記載の固定要素。
- 前記ねじ切り部は外側ねじ切り部(13;34)であり、前記安定要素はナット(16)として実現されることを特徴とする、請求項1から請求項3のいずれかに記載の固定要素。
- 前記ねじ切り部(8,13;30,31)はメートルねじ、鋸歯ねじ、平らなねじ切り
部、または負の耐荷重角度を備えたねじ切り部として実現されることを特徴とする、請求項1から請求項4のいずれかに記載の固定要素。 - 前記シャフト(1)と前記収容部(2)との間の接続は単軸として実現されることを特徴とする、請求項1から請求項5のいずれかに記載の固定要素。
- 前記シャフト(1)と前記収容部(2)との間の接続は多軸として実現されることを特徴とする、請求項1から請求項6のいずれかに記載の固定要素。
- 前記ねじ切り部が不完全ねじ部を有しない、請求項1から請求項7のいずれかに記載の固定要素。
- 請求項1から請求項8のいずれかに記載の固定要素の製造方法であって、収容部の製造は、第1にアンダーカット(9,14;33,34)の製造を含み、次いでねじ切り部(8,13;30,31)の製造を含むことを特徴とする、方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10310540A DE10310540B3 (de) | 2003-03-11 | 2003-03-11 | Verankerungselement zur Verwendung in der Wirbelsäulen- oder Knochenchirurgie und Verfahren zu seiner Herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004267783A JP2004267783A (ja) | 2004-09-30 |
JP4531420B2 true JP4531420B2 (ja) | 2010-08-25 |
Family
ID=32731147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004066066A Expired - Lifetime JP4531420B2 (ja) | 2003-03-11 | 2004-03-09 | 脊柱または骨の外科手術において用いるための固定要素およびその製造方法 |
Country Status (4)
Country | Link |
---|---|
US (3) | US8123784B2 (ja) |
EP (1) | EP1457161B1 (ja) |
JP (1) | JP4531420B2 (ja) |
DE (2) | DE10310540B3 (ja) |
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DE10157969C1 (de) | 2001-11-27 | 2003-02-06 | Biedermann Motech Gmbh | Element mit einem Schaft und einem damit verbundenen Halteelement zum Verbinden mit einem Stab |
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US20040186473A1 (en) * | 2003-03-21 | 2004-09-23 | Cournoyer John R. | Spinal fixation devices of improved strength and rigidity |
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US7377923B2 (en) | 2003-05-22 | 2008-05-27 | Alphatec Spine, Inc. | Variable angle spinal screw assembly |
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US7179261B2 (en) | 2003-12-16 | 2007-02-20 | Depuy Spine, Inc. | Percutaneous access devices and bone anchor assemblies |
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WO2005102195A1 (en) * | 2004-04-20 | 2005-11-03 | Allez Spine, Llc | Pedicle screw assembly |
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US7264621B2 (en) * | 2004-06-17 | 2007-09-04 | Sdgi Holdings, Inc. | Multi-axial bone attachment assembly |
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ES2232323B1 (es) * | 2005-02-08 | 2006-02-16 | Juan Jesus Sanchez Gutierrez | Tornillo de anclaje oseo. |
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2003
- 2003-03-11 DE DE10310540A patent/DE10310540B3/de not_active Expired - Lifetime
-
2004
- 2004-02-19 EP EP04003821A patent/EP1457161B1/de not_active Expired - Lifetime
- 2004-02-19 DE DE502004002651T patent/DE502004002651D1/de not_active Expired - Lifetime
- 2004-03-09 JP JP2004066066A patent/JP4531420B2/ja not_active Expired - Lifetime
- 2004-03-11 US US10/799,143 patent/US8123784B2/en not_active Expired - Lifetime
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2012
- 2012-01-23 US US13/356,431 patent/US20120239091A1/en not_active Abandoned
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2013
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US5217497A (en) * | 1990-07-04 | 1993-06-08 | Mehdian Seyed M H | Apparatus for use in the treatment of spinal disorders |
JP2000102544A (ja) * | 1998-08-27 | 2000-04-11 | Depuy Acromed Inc | 脊柱保持装置 |
JP2003508109A (ja) * | 1999-09-01 | 2003-03-04 | エスディージーアイ・ホールディングス・インコーポレーテッド | マルチアキシャル骨ねじ組立体 |
JP2001276086A (ja) * | 2000-04-04 | 2001-10-09 | Mizuho Co Ltd | 骨固定用具 |
Also Published As
Publication number | Publication date |
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US20040181224A1 (en) | 2004-09-16 |
EP1457161B1 (de) | 2007-01-17 |
JP2004267783A (ja) | 2004-09-30 |
DE502004002651D1 (de) | 2007-03-08 |
EP1457161A1 (de) | 2004-09-15 |
US20140052190A1 (en) | 2014-02-20 |
US20120239091A1 (en) | 2012-09-20 |
DE10310540B3 (de) | 2004-08-19 |
US8123784B2 (en) | 2012-02-28 |
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