JPH01140960U - - Google Patents
Info
- Publication number
- JPH01140960U JPH01140960U JP3775788U JP3775788U JPH01140960U JP H01140960 U JPH01140960 U JP H01140960U JP 3775788 U JP3775788 U JP 3775788U JP 3775788 U JP3775788 U JP 3775788U JP H01140960 U JPH01140960 U JP H01140960U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- larger
- liquid injection
- valve chamber
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
第1図は本考案による逆流防止弁の具体的な実
施構造の一例を示したもので、第1図イは弁体の
側面図、第1図ロはノズルの縦断面図、第2図及
び第3図は使用時に於ける弁体の動作状態を示す
縦断面図、第4図は本考案の逆流防止弁を組込ん
だ薬液注入容器の一例を示す一部を破断した側面
図、第5図及び第6図は弁室への弁体挿入動作を
示す縦断面図、第7図イ及び第7図ロと第8図イ
及び第8図ロはそれぞれ従来の逆流防止弁とその
弁閉鎖状態を示す縦断面図である。
1……容器本体、1a……薬液充填口、1b…
…薬液吐出口、2……蓋体、3……カテーテル、
4……ノズル、6……キヤツプ、7……弁体、7
a,7b……弁体の外周面、8……弁室、8a…
…弁室の出口、9……弁座、9a……弁座の内周
面、10……逆流防止弁、11……ノズル孔、1
2……突起部、Q……頂角、L……弁体の長さ、
A……ノズル孔の内径、B……弁室の内径、C…
…突起部の対向径、20……薬液注入容器。
Fig. 1 shows an example of a concrete implementation structure of the check valve according to the present invention. FIG. 3 is a longitudinal cross-sectional view showing the operating state of the valve body during use, FIG. 4 is a partially cutaway side view showing an example of a liquid injection container incorporating the non-return valve of the present invention, and FIG. 6 and 6 are vertical sectional views showing the operation of inserting the valve body into the valve chamber, and FIGS. 7A and 7B and FIGS. 8A and 8B are respectively a conventional check valve and its valve closing. It is a longitudinal cross-sectional view showing a state. 1... Container body, 1a... Chemical solution filling port, 1b...
...Medical liquid discharge port, 2...Lid body, 3...Catheter,
4... Nozzle, 6... Cap, 7... Valve body, 7
a, 7b...Outer peripheral surface of the valve body, 8...Valve chamber, 8a...
...Valve chamber outlet, 9...Valve seat, 9a...Inner peripheral surface of valve seat, 10...Return prevention valve, 11...Nozzle hole, 1
2... Protrusion, Q... Apex angle, L... Length of valve body,
A...Inner diameter of nozzle hole, B...Inner diameter of valve chamber, C...
...Opposing diameter of the protrusion, 20...Medicinal liquid injection container.
Claims (1)
けた薬液注入容器20に於いて、弁体7を軸方向
に沿つてほゞ前後対称に形成し、前記弁体7の外
周面7a,7bと、この弁体に対向する弁座9の
形状を、それぞれ同一の頂角Qを有する円錘面の
一部で形成すると共に、前記弁体7の軸方向の長
さLをノズル孔11及び弁室8の内径A,Bより
も大きく形成し、弁体7の最大径Dはノズル孔1
1及び弁室8の内径A,Bよりも小さく、且つ、
弁室8の出口8aに対設した突起部12の対向径
Cよりも稍大きく形成してあることを特徴とする
薬液注入容器の逆流防止弁。 In the chemical liquid injection container 20 in which a floating type backflow prevention valve 10 is provided inside the nozzle 4, the valve body 7 is formed approximately symmetrically in the axial direction, and the outer circumferential surfaces 7a, 7b of the valve body 7 are The shape of the valve seat 9 facing this valve body is formed by a part of a conical surface having the same apex angle Q, and the length L in the axial direction of the valve body 7 is set to the nozzle hole 11 and It is formed larger than the inner diameters A and B of the valve chamber 8, and the maximum diameter D of the valve body 7 is larger than the nozzle hole 1.
1 and the inner diameters A and B of the valve chamber 8, and
A backflow prevention valve for a chemical liquid injection container, characterized in that it is formed slightly larger than an opposing diameter C of a protrusion 12 provided opposite to an outlet 8a of a valve chamber 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3775788U JPH0542838Y2 (en) | 1988-03-22 | 1988-03-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3775788U JPH0542838Y2 (en) | 1988-03-22 | 1988-03-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01140960U true JPH01140960U (en) | 1989-09-27 |
JPH0542838Y2 JPH0542838Y2 (en) | 1993-10-28 |
Family
ID=31264332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3775788U Expired - Lifetime JPH0542838Y2 (en) | 1988-03-22 | 1988-03-22 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0542838Y2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0524050U (en) * | 1991-09-13 | 1993-03-30 | 株式会社日本メデイカル・サプライ | Check valve for blood / chemical liquid transfer line |
JP2015209785A (en) * | 2014-04-24 | 2015-11-24 | 株式会社豊田自動織機 | Compressor |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008280357A (en) * | 2008-07-28 | 2008-11-20 | Nishihara Risa | Feed pipe for remains body fluid leakage inhibiting agent |
-
1988
- 1988-03-22 JP JP3775788U patent/JPH0542838Y2/ja not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0524050U (en) * | 1991-09-13 | 1993-03-30 | 株式会社日本メデイカル・サプライ | Check valve for blood / chemical liquid transfer line |
JP2015209785A (en) * | 2014-04-24 | 2015-11-24 | 株式会社豊田自動織機 | Compressor |
Also Published As
Publication number | Publication date |
---|---|
JPH0542838Y2 (en) | 1993-10-28 |