JP5578488B2 - 留置針組立体 - Google Patents
留置針組立体 Download PDFInfo
- Publication number
- JP5578488B2 JP5578488B2 JP2010285239A JP2010285239A JP5578488B2 JP 5578488 B2 JP5578488 B2 JP 5578488B2 JP 2010285239 A JP2010285239 A JP 2010285239A JP 2010285239 A JP2010285239 A JP 2010285239A JP 5578488 B2 JP5578488 B2 JP 5578488B2
- Authority
- JP
- Japan
- Prior art keywords
- valve body
- needle hub
- elastic valve
- needle
- elastic
- 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.)
- Expired - Fee Related
Links
- 230000000452 restraining effect Effects 0.000 claims description 73
- 230000002093 peripheral effect Effects 0.000 claims description 72
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000023597 hemostasis Effects 0.000 description 58
- 239000008280 blood Substances 0.000 description 22
- 210000004369 blood Anatomy 0.000 description 22
- 230000001012 protector Effects 0.000 description 20
- 210000004204 blood vessel Anatomy 0.000 description 14
- 239000000463 material Substances 0.000 description 13
- 238000001802 infusion Methods 0.000 description 11
- 230000002439 hemostatic effect Effects 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000005192 partition Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 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
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Description
Claims (5)
- 外針ハブの基端側に内針ハブが組み付けられて、該外針ハブに突設された外針に対して該内針ハブに突設された内針が挿通されている一方、該外針ハブの内腔を遮断する弾性弁体が配設されており、該弾性弁体に形成された閉スリットを貫通して該内針が該外針に挿通されていると共に、該外針ハブから該内針ハブが取り外されて該外針から該内針が抜去されることで該弾性弁体の該閉スリットが閉塞状態となって該外針を通じての流出流路が遮断される留置針組立体において、
前記弾性弁体に対して相対移動可能とされて該弾性弁体の外周面上に位置することで該弾性弁体の外周側への変形を制限する拘束リングが前記外針ハブに設けられている一方、
該弾性弁体よりも先端側に外れて位置させられた該拘束リングに対して係合し、前記内針ハブを該外針ハブから取り外すに際してかかる係合に基づいて該拘束リングを該弾性弁体側に移動させて該弾性弁体の外周面上に位置させる係止作用部が設けられていることを特徴とする留置針組立体。 - 前記弾性弁体には、前記拘束リングの該弾性弁体側への移動を規制して該拘束リングを該弾性弁体の外周面上に位置決めする係止突部が設けられている請求項1に記載の留置針組立体。
- 前記拘束リングにおける前記弾性弁体側への移動方向前方側の開口部内周面が、開口方向に向かって次第に拡径する案内面とされている請求項1又は2に記載の留置針組立体。
- 前記外針ハブには基端側に延びる筒状の押し子が設けられていると共に、前記弾性弁体には先端側に向かって延び出して該押し子に外挿される弾性筒部が形成されている請求項1〜3の何れか1項に記載の留置針組立体。
- 前記弾性弁体の外周部分において、前記弾性筒部と反対の基端側に向かって突出する環状突部が形成されている請求項4に記載の留置針組立体。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010285239A JP5578488B2 (ja) | 2010-12-22 | 2010-12-22 | 留置針組立体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010285239A JP5578488B2 (ja) | 2010-12-22 | 2010-12-22 | 留置針組立体 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012130523A JP2012130523A (ja) | 2012-07-12 |
JP5578488B2 true JP5578488B2 (ja) | 2014-08-27 |
Family
ID=46646863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010285239A Expired - Fee Related JP5578488B2 (ja) | 2010-12-22 | 2010-12-22 | 留置針組立体 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5578488B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018026006A1 (ja) * | 2016-08-04 | 2018-02-08 | ニプロ株式会社 | 弁付き針組立体および留置針組立体 |
JP6246306B2 (ja) * | 2016-12-08 | 2017-12-13 | テルモ株式会社 | コネクタ |
US11529474B2 (en) | 2017-05-08 | 2022-12-20 | Nipro Corporation | Valved needle assembly |
US11839752B2 (en) * | 2017-08-02 | 2023-12-12 | Nipro Corporation | Hemostasis valve-equipped indwelling needle and indwelling needle assembly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE414272B (sv) * | 1978-10-17 | 1980-07-21 | Viggo Ab | Kanyl- eller kateteraggregat |
WO1993006878A1 (en) * | 1991-10-11 | 1993-04-15 | Boston Scientific Corporation | Catheter introducer sheath assembly |
US5330435A (en) * | 1993-04-08 | 1994-07-19 | Vaillancourt Vincent L | Valve for a catheter assembly |
JP2010142363A (ja) * | 2008-12-17 | 2010-07-01 | Nipro Corp | 医療用弁 |
-
2010
- 2010-12-22 JP JP2010285239A patent/JP5578488B2/ja not_active Expired - Fee Related
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JP2012130523A (ja) | 2012-07-12 |
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