JP5291824B1 - スクリュー - Google Patents
スクリュー Download PDFInfo
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- JP5291824B1 JP5291824B1 JP2012139936A JP2012139936A JP5291824B1 JP 5291824 B1 JP5291824 B1 JP 5291824B1 JP 2012139936 A JP2012139936 A JP 2012139936A JP 2012139936 A JP2012139936 A JP 2012139936A JP 5291824 B1 JP5291824 B1 JP 5291824B1
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- screw
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- 210000000988 bone and bone Anatomy 0.000 claims abstract description 34
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000001054 cortical effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
【解決手段】骨組織に螺合する髄内釘用ラグスクリュー11は、ねじ本体12と、このねじ本体12の周面に螺旋状に形成したねじ溝13、およびこのねじ溝13に沿って形成したねじ山14を有するねじ部15とを具備している。ねじ部15は、ねじ山14を、ねじ部15の軸方向中間部から先端部と基端部とに向かって漸次小径に形成して、軸方向中間部のねじ山14aを先端部側のねじ山14bおよび基端部側のねじ山14cより径大とする。
【選択図】図1
Description
12,22,32,42,52 ねじ本体
13,23,33,43,53 ねじ溝
14,24,34,44,54 ねじ山
15,25,35,45,55 ねじ部
Claims (2)
- ねじ本体と、
このねじ本体の少なくとも先端部を含む一部の周面にねじ本体の軸方向と同軸に螺旋状に形成されたねじ溝およびこのねじ溝に沿って形成されたねじ山を有するねじ部とを具備するスクリューであって、
ねじ部のねじ山は、ねじ部の軸方向中央部より先端部寄りの軸方向中間部から先端部と基端部とに向かって漸次小径に形成して、ねじ部の軸方向中央部より先端部寄りの軸方向中間部のねじ山を、このねじ山より先端部側に位置する複数のねじ山および基端部側に位置する複数のねじ山より径大とし、この最も径大のねじ山より基端部側に位置する複数のねじ山を、先端部側に位置する複数のねじ山よりも、広範囲にわたって緩やかに高さ変化させた
ことを特徴とするスクリュー。 - 骨組織に螺合される
ことを特徴とする請求項1記載のスクリュー。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012139936A JP5291824B1 (ja) | 2012-05-09 | 2012-06-21 | スクリュー |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012107926 | 2012-05-09 | ||
JP2012107926 | 2012-05-09 | ||
JP2012139936A JP5291824B1 (ja) | 2012-05-09 | 2012-06-21 | スクリュー |
Publications (2)
Publication Number | Publication Date |
---|---|
JP5291824B1 true JP5291824B1 (ja) | 2013-09-18 |
JP2013252404A JP2013252404A (ja) | 2013-12-19 |
Family
ID=49396717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012139936A Active JP5291824B1 (ja) | 2012-05-09 | 2012-06-21 | スクリュー |
Country Status (1)
Country | Link |
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JP (1) | JP5291824B1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4653486A (en) * | 1984-04-12 | 1987-03-31 | Coker Tom P | Fastener, particularly suited for orthopedic use |
JP2007107693A (ja) * | 2005-10-17 | 2007-04-26 | Nitto Seiko Co Ltd | タッピンねじ |
JP2008275062A (ja) * | 2007-04-27 | 2008-11-13 | Nitto Seiko Co Ltd | 高硬度アルミニウム合金製ねじ |
JP2011012784A (ja) * | 2009-07-03 | 2011-01-20 | Shinichi Nishida | 締結具とボルト及びナットの製造方法並びに締結具の締結方法 |
-
2012
- 2012-06-21 JP JP2012139936A patent/JP5291824B1/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4653486A (en) * | 1984-04-12 | 1987-03-31 | Coker Tom P | Fastener, particularly suited for orthopedic use |
JP2007107693A (ja) * | 2005-10-17 | 2007-04-26 | Nitto Seiko Co Ltd | タッピンねじ |
JP2008275062A (ja) * | 2007-04-27 | 2008-11-13 | Nitto Seiko Co Ltd | 高硬度アルミニウム合金製ねじ |
JP2011012784A (ja) * | 2009-07-03 | 2011-01-20 | Shinichi Nishida | 締結具とボルト及びナットの製造方法並びに締結具の締結方法 |
Also Published As
Publication number | Publication date |
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JP2013252404A (ja) | 2013-12-19 |
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