JP2022006616A - 穿刺針 - Google Patents
穿刺針 Download PDFInfo
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- JP2022006616A JP2022006616A JP2020108954A JP2020108954A JP2022006616A JP 2022006616 A JP2022006616 A JP 2022006616A JP 2020108954 A JP2020108954 A JP 2020108954A JP 2020108954 A JP2020108954 A JP 2020108954A JP 2022006616 A JP2022006616 A JP 2022006616A
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- Prior art keywords
- end portion
- side hole
- hole
- puncture needle
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- 238000012986 modification Methods 0.000 description 11
- 230000004048 modification Effects 0.000 description 11
- 238000000502 dialysis Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 4
- 239000008280 blood Substances 0.000 description 4
- 210000005259 peripheral blood Anatomy 0.000 description 4
- 239000011886 peripheral blood Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000036772 blood pressure Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- VFWONJVOKSCEKA-LNVPYCFASA-N CCCCCCC1[C@@H]2[C@@H](C(CC(CC)CCN)N)[C@@H]2C1 Chemical compound CCCCCCC1[C@@H]2[C@@H](C(CC(CC)CCN)N)[C@@H]2C1 VFWONJVOKSCEKA-LNVPYCFASA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Abstract
Description
図5に示すように、第1変形例の側孔20は、長手方向(前後方向)の中央部25から、後端部21に向かうにつれ、徐々に幅が狭くなるように形成される。
図示しないが、側孔20の後端部21及び前端部22は、断面アール状に形成されていなくても良い。また、側孔20の左右両側の縁部23,24は、断面直線状に形成されていなくても良い。
穿刺針1は、人工透析以外の医療行為に使用されても良い。また、穿刺針1は、医療用に限定されず、工業用であっても良い。
10 針体
11 先端部
12 刃面
13 側壁部
20 側孔
21 後端部(基端側の端部)
22 前端部(先端側の端部)
W1 後端部の幅(基端側の端部の幅)
W2 前端部の幅(先端側の端部の幅)
Claims (3)
- 先端部に刃面が形成された針体と、
前記針体の中心軸に対して、前記刃面と反対側に位置する前記先端部の側壁部に形成された側孔と、を備えた穿刺針であって、
前記側孔は、前記針体の基端側から先端側に向かって軸方向に延びる長孔状に形成され、
前記側孔の基端側の端部の幅は、前記側孔の先端側の端部の幅よりも小さい
ことを特徴とする穿刺針。 - 前記側孔は、先端側の端部または長手方向の中央部から、基端側の端部に向かうにつれ、徐々に幅が狭くなるように形成される
請求項1に記載の穿刺針。 - 前記側孔の基端側及び先端側の両端部は、断面アール状にそれぞれ形成され、
前記側孔の基端側の端部の曲率半径は、前記側孔の先端側の端部の曲率半径よりも小さい
請求項1または2に記載の穿刺針。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020108954A JP7270982B2 (ja) | 2020-06-24 | 2020-06-24 | 穿刺針 |
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JP2020108954A JP7270982B2 (ja) | 2020-06-24 | 2020-06-24 | 穿刺針 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2022006616A true JP2022006616A (ja) | 2022-01-13 |
JP7270982B2 JP7270982B2 (ja) | 2023-05-11 |
Family
ID=80110334
Family Applications (1)
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JP2020108954A Active JP7270982B2 (ja) | 2020-06-24 | 2020-06-24 | 穿刺針 |
Country Status (1)
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JP (1) | JP7270982B2 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040122380A1 (en) * | 2002-12-19 | 2004-06-24 | Utterberg David S. | Blunt cannula with bent tip |
US20060106363A1 (en) * | 2004-07-01 | 2006-05-18 | Aravena Ines M | Injection systems |
WO2010007664A1 (ja) * | 2008-07-15 | 2010-01-21 | 佐藤製薬株式会社 | 耳鼻科用注射針 |
JP2013523333A (ja) * | 2010-04-06 | 2013-06-17 | クック メディカル テクノロジーズ エルエルシー | 内視鏡超音波誘導生検針 |
-
2020
- 2020-06-24 JP JP2020108954A patent/JP7270982B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040122380A1 (en) * | 2002-12-19 | 2004-06-24 | Utterberg David S. | Blunt cannula with bent tip |
US20060106363A1 (en) * | 2004-07-01 | 2006-05-18 | Aravena Ines M | Injection systems |
WO2010007664A1 (ja) * | 2008-07-15 | 2010-01-21 | 佐藤製薬株式会社 | 耳鼻科用注射針 |
JP2013523333A (ja) * | 2010-04-06 | 2013-06-17 | クック メディカル テクノロジーズ エルエルシー | 内視鏡超音波誘導生検針 |
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JP7270982B2 (ja) | 2023-05-11 |
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