JP2015202411A - 脊椎手術、整形外科手術、または外傷手術において使用するためのねじ要素、ならびにこのようなねじ要素およびこれに適合されたスクリュードライバーのシステム - Google Patents
脊椎手術、整形外科手術、または外傷手術において使用するためのねじ要素、ならびにこのようなねじ要素およびこれに適合されたスクリュードライバーのシステム Download PDFInfo
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- 238000001356 surgical procedure Methods 0.000 title claims abstract description 15
- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 5
- 208000014674 injury Diseases 0.000 title claims abstract description 4
- 230000008733 trauma Effects 0.000 title claims abstract description 4
- 210000000988 bone and bone Anatomy 0.000 claims description 25
- 230000004323 axial length Effects 0.000 claims 2
- 238000003780 insertion Methods 0.000 abstract description 9
- 230000037431 insertion Effects 0.000 abstract description 9
- 238000004873 anchoring Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000013459 approach 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
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation 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
- A61B17/7002—Longitudinal elements, e.g. rods
-
- 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
- A61B17/7059—Cortical plates
-
- 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
- A61B17/7074—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling
- A61B17/7076—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation
- A61B17/7082—Tools specially adapted for spinal fixation operations other than for bone removal or filler handling for driving, positioning or assembling spinal clamps or bone anchors specially adapted for spinal fixation for driving, i.e. rotating, screws or screw parts specially adapted for spinal fixation, e.g. for driving polyaxial or tulip-headed screws
-
- 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
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
- A61B17/8877—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit
- A61B17/888—Screwdrivers, spanners or wrenches characterised by the cross-section of the driver bit the driver bit acting on the central region of the screw head
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8875—Screwdrivers, spanners or wrenches
- A61B17/8886—Screwdrivers, spanners or wrenches holding the screw head
- A61B17/8888—Screwdrivers, spanners or wrenches holding the screw head at its central region
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgical Instruments (AREA)
Abstract
【解決手段】脊椎手術、整形外科手術、または外傷手術において使用するためのねじ要素1であって、ねじ要素は、ねじ軸Sとねじとを含む。ねじ要素はさらに、スクリュードライバーと係合するための駆動部分を含み、駆動部分は、壁を有する第1凹部7と、壁に形成された実質的に長手方向に延在する駆動溝8とを含む。ねじ要素はさらに、ねじ要素の自由端部と第1凹部との間の第2凹部9を含み、第2凹部は、壁と、自由端部に向けて増大する内径とを有する。第2凹部の壁において、ガイド溝10は、スクリュードライバーの係合部分が駆動溝に入るようにガイドする駆動溝の位置に対応する位置に形成される。
【選択図】図5
Description
Claims (15)
- 脊椎手術、整形外科手術、または外傷手術において使用するためのねじ要素であって、ねじ要素は、
ねじ軸(S)およびねじ(3)と、
スクリュードライバー(20)と係合するための駆動部分(6)とを備え、前記駆動部分(6)は、壁を有する第1凹部(7)と、前記壁に形成された実質的に長手方向に延在する駆動溝(8)とを含み、ねじ要素はさらに、
前記ねじ要素(1,1′)の自由端部(5)と前記第1凹部(7)との間の第2凹部(9)を備え、前記第2凹部(9)は、壁と、前記自由端部(5)に向けて徐々に増大する内径とを有し、
前記第2凹部(9)の前記壁において、ガイド溝(10)は、スクリュードライバー(20)の係合部分(30)を前記駆動溝(8)に係合させるようにガイドする前記駆動溝(8)の位置に対応する位置に形成される、ねじ要素。 - 前記第1凹部(7)は、実質的に筒状であり、前記駆動溝(8)は前記ねじ軸に対して実質的に平行に延在する、請求項1に記載のねじ要素。
- 前記駆動溝(8)を有する前記第1凹部(7)はトルクス形状を有する、請求項1または2に記載のねじ要素。
- 前記第2凹部(9)は、実質的に円錐状であり、前記ねじ要素の前記自由端部(5)に向けて増大する直径を有する、請求項1から3のいずれか1項に記載のねじ要素。
- 前記第2凹部(9)の軸方向の長さは、前記第1凹部の軸方向の長さの5分の1と半分との間であり、好ましくは前記第1凹部(7)の軸方向の長さの4分の1と3分の1との間である、請求項4に記載のねじ要素。
- 前記ガイド溝(10)は、前記駆動溝(8)の底線(Bd)よりも前記ねじ軸(S)からさらに離れた底線(Bg)を含む、請求項1から5のいずれか1項に記載のねじ要素。
- 前記ガイド溝(10)の深さは、前記自由端部(5)から前記第1凹部(7)へ向かう方向において増大する、請求項6に記載のねじ要素。
- 前記ガイド溝(10)の幅は、前記自由端部(5)から前記第1凹部(7)へ向かう方向に増大する、請求項7または8に記載のねじ要素。
- 前記ガイド溝(10)の幅は、前記第1凹部(7)に最も近い位置において前記駆動溝(8)の幅よりも大きい、請求項1から8のいずれか1項に記載のねじ要素。
- 傾斜した肩部(11)は、前記駆動溝(8)に隣接する各ガイド溝(10)の端部に設けられる、請求項1から9のいずれか1項に記載のねじ要素。
- 前記ねじ要素(1)は、シャンク(2)を含む骨ねじであり、シャンク(2)は、少なくともその一部に骨ねじ切り部を有し、前記シャンク(2)の反対側の自由端部(5)を有するヘッド部(4)を有し、前記駆動部分(6)は、前記ヘッド部(4)に設けられる、請求項1から10のいずれか1項に記載のねじ要素。
- 前記ヘッド部(4)は、球状セグメント形状の外表面部分を有する、請求項11に記載のねじ要素。
- 前記ねじ要素は、多軸骨ねじ(50)のための係止要素として、または骨プレートのための係止要素として使用されるように構成される止めねじ(40)である、請求項1から10のいずれか1項に記載のねじ要素。
- 請求項1から13のいずれか1項のねじ要素およびスクリュードライバーのシステムであって、前記スクリュードライバー(20)は、駆動軸と、前記駆動軸に対して平行な長手方向に延在する係合突起との係合部分(30)とを備え、前記ねじ要素(1)の前記駆動溝(8)と係合するように構成され、
前記係合突起(31)は、傾斜した前端部(31a)を含み、前記傾斜部の長さは、前記ガイド溝(10)の長さに実質的に対応する、システム。 - 前記係合突起は、前記駆動軸に対して垂直な断面においてトルクス形状を有する、請求項14に記載のシステム。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201461979818P | 2014-04-15 | 2014-04-15 | |
EP14164692.7A EP2932929B1 (en) | 2014-04-15 | 2014-04-15 | A screw element for use in spinal, orthopedic or trauma surgery and a system of such a screw element and a screw driver adapted thereto |
US61/979,818 | 2014-04-15 | ||
EP14164692.7 | 2014-04-15 |
Publications (2)
Publication Number | Publication Date |
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JP2015202411A true JP2015202411A (ja) | 2015-11-16 |
JP6612515B2 JP6612515B2 (ja) | 2019-11-27 |
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JP2015080922A Active JP6612515B2 (ja) | 2014-04-15 | 2015-04-10 | 脊椎手術、整形外科手術、または外傷手術において使用するためのねじ要素、ならびにこのようなねじ要素およびこれに適合されたスクリュードライバーのシステム |
Country Status (6)
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US (3) | US9867639B2 (ja) |
EP (1) | EP2932929B1 (ja) |
JP (1) | JP6612515B2 (ja) |
KR (1) | KR20150118914A (ja) |
CN (1) | CN105030320B (ja) |
TW (1) | TW201538121A (ja) |
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Also Published As
Publication number | Publication date |
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JP6612515B2 (ja) | 2019-11-27 |
US20190365422A1 (en) | 2019-12-05 |
TW201538121A (zh) | 2015-10-16 |
EP2932929A1 (en) | 2015-10-21 |
KR20150118914A (ko) | 2015-10-23 |
CN105030320B (zh) | 2019-12-10 |
CN105030320A (zh) | 2015-11-11 |
US9867639B2 (en) | 2018-01-16 |
US10335198B2 (en) | 2019-07-02 |
US11045226B2 (en) | 2021-06-29 |
EP2932929B1 (en) | 2017-02-08 |
US20150289905A1 (en) | 2015-10-15 |
US20180140331A1 (en) | 2018-05-24 |
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