JP2008183020A - 生検針 - Google Patents
生検針 Download PDFInfo
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- JP2008183020A JP2008183020A JP2007016404A JP2007016404A JP2008183020A JP 2008183020 A JP2008183020 A JP 2008183020A JP 2007016404 A JP2007016404 A JP 2007016404A JP 2007016404 A JP2007016404 A JP 2007016404A JP 2008183020 A JP2008183020 A JP 2008183020A
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- needle
- outer needle
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- biopsy
- distal end
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- 238000001574 biopsy Methods 0.000 title claims abstract description 49
- 238000005070 sampling Methods 0.000 claims description 41
- 239000007787 solid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 9
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
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Abstract
【解決手段】外針11の先端側に設けた縮径部11bにより、採取針12の第1の可動部12aを外針11の径方向中心側に向かって変形させて第1の可動部12aと外針11の内面との間に組織Aを挟持するとともに、縮径部11bにより採取針12の第2の可動部12bを径が小さくなるように変形させて組織Aを掴むようにしたので、組織が硬い場合でも外針11内の組織Aを他の組織から容易に切り離すことができ、外針11内に取り込んだ組織Aを確実に採取することができる。
【選択図】図4
Description
Claims (5)
- 先端を開口した中空状の外針と、外針内に軸方向に移動自在に設けられた中空状の採取針とを備え、生体の組織内に穿刺した状態で外針を前進させることにより外針内に組織の一部を取り込んだ後、採取針を外針の先端側まで前進させることにより採取針によって外針内の組織を保持するようにした生検針において、
前記外針の先端側に外針の基端側よりも内径が小さくなるように形成された縮径部と、
採取針の先端側に径方向断面が略円弧状をなすように採取針の周方向一部に形成され、外針の縮径部により外針の径方向中心側に向かって変形する第1の可動部と、
第1の可動部の先端側に他の略円弧状部分よりも周方向両端側が周方向に長く形成され、外針の縮径部により径方向内側に向かって縮小するように変形する第2の可動部とを備えた
ことを特徴とする生検針。 - 前記第2の可動部の軸方向端部及び周方向端部にそれぞれ刃を設けた
ことを特徴とする請求項1記載の生検針。 - 前記採取針の先端側を外針の先端から外部に突出可能に形成した
ことを特徴とする請求項1または2記載の生検針。 - 前記第1の可動部と第2の可動部との間の段差部を軸方向に対して斜めに形成した
ことを特徴とする請求項3記載の生検針。 - 前記外針及び採取針内に設けられ、鋭利な先端部を外針の先端から外部に突出可能な中実状の内針を備えた
ことを特徴とする請求項1、2、3または4記載の生検針。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007016404A JP4879763B2 (ja) | 2007-01-26 | 2007-01-26 | 生検針 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007016404A JP4879763B2 (ja) | 2007-01-26 | 2007-01-26 | 生検針 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008183020A true JP2008183020A (ja) | 2008-08-14 |
JP4879763B2 JP4879763B2 (ja) | 2012-02-22 |
Family
ID=39726458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007016404A Active JP4879763B2 (ja) | 2007-01-26 | 2007-01-26 | 生検針 |
Country Status (1)
Country | Link |
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JP (1) | JP4879763B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010138944A2 (en) * | 2009-05-28 | 2010-12-02 | Angiotech Pharmaceuticals Inc. | Biopsy device needle set |
US9198686B2 (en) | 2010-07-30 | 2015-12-01 | Olympus Corporation | Medical instrument |
JP5997297B2 (ja) * | 2013-01-21 | 2016-09-28 | 富士フイルム株式会社 | 組織採取装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09192134A (ja) * | 1996-01-19 | 1997-07-29 | Tasuku:Kk | 生検装置 |
JPH11226024A (ja) * | 1998-02-17 | 1999-08-24 | Olympus Optical Co Ltd | 内視鏡用処置具 |
JP2005527267A (ja) * | 2002-03-19 | 2005-09-15 | バード ダブリン アイティーシー リミティッド | 生検装置、並びに生検装置に使用可能な生検針モジュール |
JP2006305328A (ja) * | 2005-03-29 | 2006-11-09 | Yasuharu Noisshiki | 医療用の二重針、骨穿刺針および骨髄採取機器 |
-
2007
- 2007-01-26 JP JP2007016404A patent/JP4879763B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09192134A (ja) * | 1996-01-19 | 1997-07-29 | Tasuku:Kk | 生検装置 |
JPH11226024A (ja) * | 1998-02-17 | 1999-08-24 | Olympus Optical Co Ltd | 内視鏡用処置具 |
JP2005527267A (ja) * | 2002-03-19 | 2005-09-15 | バード ダブリン アイティーシー リミティッド | 生検装置、並びに生検装置に使用可能な生検針モジュール |
JP2006305328A (ja) * | 2005-03-29 | 2006-11-09 | Yasuharu Noisshiki | 医療用の二重針、骨穿刺針および骨髄採取機器 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010138944A2 (en) * | 2009-05-28 | 2010-12-02 | Angiotech Pharmaceuticals Inc. | Biopsy device needle set |
WO2010138944A3 (en) * | 2009-05-28 | 2011-03-31 | Angiotech Pharmaceuticals Inc. | Biopsy device needle set |
CN102458261A (zh) * | 2009-05-28 | 2012-05-16 | 血管技术药物公司 | 活组织检查装置针头组 |
US9198686B2 (en) | 2010-07-30 | 2015-12-01 | Olympus Corporation | Medical instrument |
JP5997297B2 (ja) * | 2013-01-21 | 2016-09-28 | 富士フイルム株式会社 | 組織採取装置 |
Also Published As
Publication number | Publication date |
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JP4879763B2 (ja) | 2012-02-22 |
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