JP2004267783A - 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
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- JP2004267783A JP2004267783A JP2004066066A JP2004066066A JP2004267783A JP 2004267783 A JP2004267783 A JP 2004267783A JP 2004066066 A JP2004066066 A JP 2004066066A JP 2004066066 A JP2004066066 A JP 2004066066A JP 2004267783 A JP2004267783 A JP 2004267783A
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- thread
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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
-
- 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
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- 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)
Abstract
【解決手段】 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(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、収容部(22)は、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、収容部(22)は、ロッドの収容のためのチャネルおよび2本の脚(27,28)を備えたU字型凹み(26)を含み、脚(27,28)は、それらの端部が自由であってねじ切り部(30,31)を含み、固定要素はさらに、脚のねじ切り部と係合するねじ切り部を含む安定要素を含み、それにより、ロッドが挿入されると、自由端(29)に対向するロッド表面は、軸方向において自由端(29)から予め定められた距離(A)にある。
【選択図】 図3
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 (8)
- 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’)に存在することを特徴とする、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。
- 請求項1から請求項7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 true JP2004267783A (ja) | 2004-09-30 |
JP4531420B2 JP4531420B2 (ja) | 2010-08-25 |
Family
ID=32731147
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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) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009535111A (ja) * | 2006-04-28 | 2009-10-01 | ウォーソー・オーソペディック・インコーポレーテッド | 開放性アクスル外科用インプラント |
KR101486978B1 (ko) | 2006-09-15 | 2015-01-29 | 비이더만 테크놀로지스 게엠베하 & 코. 카게 | 뼈 고정장치 |
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2003
- 2003-03-11 DE DE10310540A patent/DE10310540B3/de not_active Expired - Lifetime
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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
- 2013-08-15 US US13/968,222 patent/US20140052190A1/en not_active Abandoned
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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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009535111A (ja) * | 2006-04-28 | 2009-10-01 | ウォーソー・オーソペディック・インコーポレーテッド | 開放性アクスル外科用インプラント |
KR101486978B1 (ko) | 2006-09-15 | 2015-01-29 | 비이더만 테크놀로지스 게엠베하 & 코. 카게 | 뼈 고정장치 |
Also Published As
Publication number | Publication date |
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JP4531420B2 (ja) | 2010-08-25 |
DE10310540B3 (de) | 2004-08-19 |
US8123784B2 (en) | 2012-02-28 |
US20120239091A1 (en) | 2012-09-20 |
US20140052190A1 (en) | 2014-02-20 |
EP1457161B1 (de) | 2007-01-17 |
US20040181224A1 (en) | 2004-09-16 |
EP1457161A1 (de) | 2004-09-15 |
DE502004002651D1 (de) | 2007-03-08 |
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