CN202740525U - Anti-backflow intravenous infusion apparatus - Google Patents
Anti-backflow intravenous infusion apparatus Download PDFInfo
- Publication number
- CN202740525U CN202740525U CN 201220489102 CN201220489102U CN202740525U CN 202740525 U CN202740525 U CN 202740525U CN 201220489102 CN201220489102 CN 201220489102 CN 201220489102 U CN201220489102 U CN 201220489102U CN 202740525 U CN202740525 U CN 202740525U
- Authority
- CN
- China
- Prior art keywords
- infusion
- diaphragm
- arc
- joint
- check valve
- 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
- 238000001802 infusion Methods 0.000 title claims abstract description 21
- 238000001990 intravenous administration Methods 0.000 title description 6
- 230000000151 anti-reflux effect Effects 0.000 claims abstract 3
- 239000007788 liquid Substances 0.000 abstract description 13
- 239000008280 blood Substances 0.000 abstract description 9
- 210000004369 blood Anatomy 0.000 abstract description 9
- 210000004204 blood vessel Anatomy 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本实用新型公开一种可防止血管中血液逆流进入输液管道的防逆流静脉输液器，包括针头，输液软管连接针头，输液软管端部有连接输液管的接头，接头上有止回阀装置，该止回阀装置有一连接在接头管壁的弧形挡片，膜片的一侧连接在接头管壁，另一侧为自由端并叠加在弧形挡片上，在正常输液时，止回阀装置中的膜片自动打开，不影响输液，在输液针压力降低时，止回阀装置中的膜片自动贴紧弧形挡片，阻挡药液的逆流，因此不会造成血管中的血液回流到输液管中。
The utility model discloses an anti-reflux venous infusion device which can prevent the blood in the blood vessel from flowing backward into the infusion pipeline. , the check valve device has an arc-shaped baffle connected to the wall of the joint pipe. One side of the diaphragm is connected to the wall of the joint pipe, and the other side is a free end superimposed on the arc-shaped baffle. During normal infusion, the non-return The diaphragm in the valve device opens automatically, which does not affect the infusion. When the pressure of the infusion needle decreases, the diaphragm in the check valve device automatically sticks to the arc-shaped stopper to prevent the backflow of the liquid medicine, so it will not cause blood in the blood vessel. back into the infusion line.
Description
Technical field
This utility model relates to medical apparatus and instruments, relates in particular to the transfusion device of used for intravenous injection.
Background technology
Require in the infusion process infusion bottle is in the higher position, make medicinal liquid in the transfusion needle obtain pressure greater than vein blood vessel with height fall, medicinal liquid can flow into blood vessel, exhausts but work as the infusion bottle medicinal liquid, and the tube for transfusion liquid level descends, medicinal liquid pressure drop in the transfusion needle descends thereupon, when medicinal liquid pressure during less than vascular pressure, the blood in the blood vessel can flow out in the tube for transfusion, as untimely with blood backflow in blood vessel, the blood that flows out can solidify caking, unnecessary risk can occur when again infusing blood vessel.Blood back flow when the patient activity health, also can occur accidentally and enter tube for transfusion.
Summary of the invention
The purpose of this utility model is to provide a kind of and prevents that blood back flow in the hemostatic tube enters the counterflow-preventing intravenous transfusion device of liquid-transport pipe-line.
This utility model counterflow-preventing intravenous transfusion device comprises syringe needle, the infusion tube connecting needle, and there is the joint that connects tube for transfusion the infusion tube end, and check valve apparatus is arranged on the joint.
Above-mentioned check valve apparatus has an arc block plate that is connected to the joint tube wall, and a side of diaphragm is connected to the joint tube wall, and opposite side is free end and is superimposed upon on the arc block plate.
This utility model is when normal infusion, and the diaphragm in the check valve apparatus is opened automatically, does not affect transfusion, when the transfusion needle pressure decreased, diaphragm automatic paste tightening arc block plate in the check valve apparatus stops the adverse current of medicinal liquid, therefore can not cause blood backflow in the blood vessel in tube for transfusion.
Description of drawings
Fig. 1 is this utility model intravenous transfusion device schematic diagram.
Fig. 2 is arc block plate and diaphragm schematic diagram in the check valve apparatus.
The specific embodiment
As shown in the figure, counterflow-preventing intravenous transfusion device of the present utility model comprises syringe needle 1, infusion tube 2 connecting needles 1, there is the joint 3 that connects tube for transfusion infusion tube 2 ends, check valve apparatus 4 is arranged on the joint 3, joint 3 upwards connects tube for transfusion 8, drips kettle 9 and medicinal liquid bottle 10, also has speed regulator 11 on the tube for transfusion 8.
Shown in Figure 2, check valve apparatus has an arc block plate 5 that is connected to the tube wall of joint 3, and a side of soft diaphragm 6 is connected to the tube wall of joint 3, and opposite side is free end 7 and is superimposed upon on the arc block plate 5.When the medicinal liquid following current was flowed, the free end 7 of diaphragm 6 left arc block plate 5 along liquid flow, and when the medicinal liquid flow velocity slows down when stopping, the free end 7 of diaphragm 6 is added to and stops the medicinal liquid adverse current on the arc block plate 5, and the blood in the blood vessel just can not flow into infusion tube 2 yet.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489102 CN202740525U (en) | 2012-09-24 | 2012-09-24 | Anti-backflow intravenous infusion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489102 CN202740525U (en) | 2012-09-24 | 2012-09-24 | Anti-backflow intravenous infusion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202740525U true CN202740525U (en) | 2013-02-20 |
Family
ID=47699983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220489102 Expired - Fee Related CN202740525U (en) | 2012-09-24 | 2012-09-24 | Anti-backflow intravenous infusion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202740525U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505772A (en) * | 2013-09-30 | 2014-01-15 | 苏州市雅思精密模具有限公司 | Backflow prevention infusion tube |
| CN104941022A (en) * | 2015-06-19 | 2015-09-30 | 夏瑾梅 | Novel anti-reverse flow precise infusion apparatus |
| CN104984435A (en) * | 2015-07-24 | 2015-10-21 | 朱文和 | Infusion tube capable of preventing blood backflow |
| CN106512151A (en) * | 2016-12-22 | 2017-03-22 | 江苏工程职业技术学院 | Infusion tube with high safety |
| CN113164673A (en) * | 2018-08-23 | 2021-07-23 | B.布劳恩梅尔松根股份公司 | Medical infusion system |
-
2012
- 2012-09-24 CN CN 201220489102 patent/CN202740525U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103505772A (en) * | 2013-09-30 | 2014-01-15 | 苏州市雅思精密模具有限公司 | Backflow prevention infusion tube |
| CN104941022A (en) * | 2015-06-19 | 2015-09-30 | 夏瑾梅 | Novel anti-reverse flow precise infusion apparatus |
| CN104984435A (en) * | 2015-07-24 | 2015-10-21 | 朱文和 | Infusion tube capable of preventing blood backflow |
| CN106512151A (en) * | 2016-12-22 | 2017-03-22 | 江苏工程职业技术学院 | Infusion tube with high safety |
| CN113164673A (en) * | 2018-08-23 | 2021-07-23 | B.布劳恩梅尔松根股份公司 | Medical infusion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130924 |