JP4995448B2 - 自己案内ねじ込み留め具 - Google Patents
自己案内ねじ込み留め具 Download PDFInfo
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- JP4995448B2 JP4995448B2 JP2005244146A JP2005244146A JP4995448B2 JP 4995448 B2 JP4995448 B2 JP 4995448B2 JP 2005244146 A JP2005244146 A JP 2005244146A JP 2005244146 A JP2005244146 A JP 2005244146A JP 4995448 B2 JP4995448 B2 JP 4995448B2
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- Prior art keywords
- thread
- orthopedic
- screw
- shank
- diameter
- 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.)
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- 230000000399 orthopedic effect Effects 0.000 claims description 97
- 239000007943 implant Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 90
- 208000010392 Bone Fractures Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 210000002758 humerus Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 210000000689 upper leg Anatomy 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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
-
- 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
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
- A61B17/863—Shanks, i.e. parts contacting bone tissue with thread interrupted or changing its form along shank, other than constant taper
-
- 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
- A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (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
次に、整形外科用インプラントが予め開けられた穴に対して正しい空間関係で設置される。その後、整形外科用ネジがインプラントの開口に位置合わせされる。そして整形外科用ネジは移動して開口を通り予め開けられた穴内に入り、整形外科用ネジの第2の部分が開口の雌ネジと接触し、それにより整形外科用ネジは整形外科用インプラントに関して所定の空間関係を維持する。ネジは整形外科用インプラントの開口をさらに通って移動し、第1の部分が整形外科用インプラントの内ネジと接触して整形外科用ネジを整形外科用インプラントに対して係止する。
12 頭部
14 シャンク
16 シャンク14の第1の部分
18 シャンク14の第2の部分
20 先端部
21 面取り
22 ネジ山
24 第1の部分16の第1の端部
26 第1の部分16の第2の端部
30 第1のネジ山
32 第2の部分18の第1の端部
34 第2の部分18の第2の端部
36 第2のネジ山
61 先端の面取り
70 凹部
100 骨プレート
102 骨プレート前面
104 骨プレート後面
106 開口
108 内部ネジ山
110 開口106の内壁
120 骨
122 パイロットホール
130 2つのネジ山の間の間隙
132 ネジ山36の頂点
134 雌ネジ108の谷
140 凹部または皿穴
Claims (12)
- 整形外科用システムであって、前記システムは、
整形外科処置において整形外科部品に取り付けられる整形外科用ネジと、
雌ネジを持つ少なくとも1つの開口を有する整形外科用インプラントを具備してなり、
前記整形外科用ネジは、
シャンクを備え、前記シャンクは、
第1のシャンク直径、および第1のシャンクから半径方向外側に向かって延びる第1のネジ山を有する第1の部分と、前記第1のネジ山は第1のネジ直径を画定し、
第2のシャンク直径、および第2のシャンクから半径方向外側に向かって延びる第2のネジ山を有する第2の部分とを有し、前記第2のネジ山は第2のネジ直径を画定し、
前記第2のシャンク直径および前記第2のネジ直径は、それぞれ前記第1のシャンク直径および前記第1のネジ直径よりも小さく、
前記第2のネジ山はネジ高さおよびピッチを有し、前記第1のネジ山はネジ高さおよびピッチを有し、前記第1のネジ山のネジ高さおよびピッチはそれぞれ前記第2のネジ山のネジ高さおよびピッチにほぼ等しく、
前記整形外科用ネジは先端部をさらに備え、前記先端部は前記第1の部分から離れた前記第2の部分から延びる第3のシャンクを有し、
前記先端部は前記第2の部分から離れた第1の端部を含み、前記先端部は前記第1の端部から前記第2の部分に向かって延びる少なくとも1つの溝をさらに含み、
前記第1の部分のシャンク直径は前記第2の部分のシャンク直径より大きく、前記第2の部分のシャンク直径は前記先端部のシャンク直径より大きく、
前記第2のネジ山は、前記整形外科用インプラントの前記開口に受けられ、且つ前記整形外科用インプラントの雌ネジと連絡して前記整形外科用ネジと前記整形外科用インプラントとの間の正しい位置合わせを維持するように構成され、前記第1の部分の前記第1のネジ山および前記第1のシャンク直径は、前記整形外科用インプラントの前記少なくとも1つの開口の前記雌ネジと十分に係合するように構成されており、
前記整形外科用インプラントは連結器を含む、整形外科用システム。 - 前記先端部は前記第3のシャンクから半径方向外側に向かって延びる第3のネジ山を含み、前記第3のネジ山はネジ高さおよびピッチを有する、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記先端部のネジ高さおよびピッチは、前記第1および第2の部分のネジ高さおよびピッチにほぼ等しい、請求項2に記載の整形外科用ネジ。
- 前記ネジは頭部を含み、前記頭部は前記第1の部分に連絡し、前記頭部は凹部を有する、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記凹部は星の形状である、請求項4に記載の整形外科用ネジ。
- 前記ピッチは0.8ミリメータから1ミリメータである、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記ネジ高さは0.25ミリメータから3ミリメータである、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記ネジは自動穴開け式である、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記第2のネジ直径は前記第1のシャンク直径よりも大きい、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記第1のネジ山と前記第2のネジ山とは連続している、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記ネジは10ミリメータから120ミリメータの長さを有し、前記第1の部分は1ミリメータから2.2ミリメータの長さを有する、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
- 前記先端部はテーパ部分を含む、請求項1に記載の整形外科用システムにおける整形外科用ネジ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/000,098 | 2004-11-30 | ||
US11/000,098 US7799062B2 (en) | 2004-11-30 | 2004-11-30 | Self-guiding threaded fastener |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006150054A JP2006150054A (ja) | 2006-06-15 |
JP4995448B2 true JP4995448B2 (ja) | 2012-08-08 |
Family
ID=35871163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005244146A Active JP4995448B2 (ja) | 2004-11-30 | 2005-08-25 | 自己案内ねじ込み留め具 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7799062B2 (ja) |
EP (1) | EP1661526B1 (ja) |
JP (1) | JP4995448B2 (ja) |
AU (1) | AU2005202820B2 (ja) |
ES (1) | ES2615031T3 (ja) |
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-
2004
- 2004-11-30 US US11/000,098 patent/US7799062B2/en active Active
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2005
- 2005-06-27 ES ES05405411.9T patent/ES2615031T3/es active Active
- 2005-06-27 EP EP05405411.9A patent/EP1661526B1/en active Active
- 2005-06-28 AU AU2005202820A patent/AU2005202820B2/en active Active
- 2005-08-25 JP JP2005244146A patent/JP4995448B2/ja active Active
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US7799062B2 (en) | 2010-09-21 |
US20060116686A1 (en) | 2006-06-01 |
AU2005202820A1 (en) | 2006-06-15 |
JP2006150054A (ja) | 2006-06-15 |
AU2005202820B2 (en) | 2011-05-19 |
EP1661526B1 (en) | 2016-11-23 |
ES2615031T3 (es) | 2017-06-05 |
EP1661526A1 (en) | 2006-05-31 |
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