CN203227108U - Vein needle - Google Patents
Vein needle Download PDFInfo
- Publication number
- CN203227108U CN203227108U CN 201320177143 CN201320177143U CN203227108U CN 203227108 U CN203227108 U CN 203227108U CN 201320177143 CN201320177143 CN 201320177143 CN 201320177143 U CN201320177143 U CN 201320177143U CN 203227108 U CN203227108 U CN 203227108U
- Authority
- CN
- China
- Prior art keywords
- needle
- conduit
- spool
- loam cake
- lower cover
- 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 - Lifetime
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Abstract
The utility model provides a vein needle which comprises a needle base, a conduit and a needle head, wherein the conduit connects the needle base with the needle head and is provided with a one-way valve. The vein needle can prevent a blood return phenomenon in a transfusion process efficiently, enables the transfusion to be safer, and reduces workload and unnecessary trouble of health-care workers.
Description
Technical field
This utility model belongs to medical instruments field, relates to disposable transfusion device, is specifically related to a kind of intravenous needle.
Background technology
At present, the intravenous needle of common disposable transfusion device is made up of the conduit of needle stand, syringe needle and connection needle stand and syringe needle.In infusion process, in some cases, the liquid in the conduit can take place to flow backwards and cause blood back.Blood back makes the patient produce psychological doubt and fear to a certain extent, causes the negative effect for the treatment of.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, intravenous needle that can effectively prevent blood back.
The technical solution of the utility model: a kind of intravenous needle, comprise needle stand, conduit, syringe needle, conduit connects needle stand and syringe needle, it is characterized in that, is provided with check valve at conduit.
The beneficial effects of the utility model are: when liquid in the conduit flow backwards in some cases, check valve will stop needle end conduit inner liquid medicine to flow backwards, thereby stops backflow of blood, prevents the generation of blood back.Alleviated nursing staff's workload simultaneously, more convenient operation, time saving and energy saving, improved work efficiency.
Description of drawings
Fig. 1 is the structure chart of this utility model intravenous needle;
Fig. 2 is the one-way valve structures sketch map of this utility model intravenous needle.
The specific embodiment
As shown in Figure 1, this utility model provides a kind of intravenous needle, comprises needle stand 1, conduit 2, and syringe needle 5, syringe needle 5 are plugged in the needle handle 4, and conduit 2 connects needle stand 1 and syringe needle 5 by needle handle 4, is provided with check valve 3 at conduit 2.As shown in Figure 2, check valve is by loam cake 31, spool 32, silicone rubber plate 33, lower cover 34 constitutes, and there is the joint a that is connected with needle stand end conduit 21 loam cake 31 upper ends, there is the joint b that is connected with needle end conduit 22 lower cover 34 lower ends, and loam cake is with fixing with valve core 32 after lower cover engages.On the spool 32 through hole is arranged, the protruding end on the silicone rubber plate passes central through hole, is connected with spool 32, and keeps suitable spacing, makes it that certain activity surplus be arranged.When normal infusion, medicinal liquid is pushed silicone rubber plate 33 open, and the through hole that sees through spool 32 flows into syringe needle, enters in the body.When the refluence situation occurring, silicone rubber plate 33 can be oppositely mobile, pushes down valve core through hole, thereby stop medicinal liquid to flow backwards.
Claims (2)
1. an intravenous needle comprises needle stand, conduit, syringe needle, and conduit connects needle stand and syringe needle, it is characterized in that, is provided with check valve at conduit.
2. intravenous needle according to claim 1 is characterized in that, described check valve is by loam cake, spool, silicone rubber plate, lower cover constitutes, there is the joint that is connected with needle stand end conduit the upper end of loam cake, there is the joint that is connected with the needle end conduit lower end of lower cover, loam cake with valve core is fixed after lower cover engages, through hole is arranged on the spool, protruding end on the silicone rubber plate passes central through hole, be connected with spool, and keep suitable spacing, make it that certain activity surplus be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177143 CN203227108U (en) | 2013-04-10 | 2013-04-10 | Vein needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177143 CN203227108U (en) | 2013-04-10 | 2013-04-10 | Vein needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203227108U true CN203227108U (en) | 2013-10-09 |
Family
ID=49283259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177143 Expired - Lifetime CN203227108U (en) | 2013-04-10 | 2013-04-10 | Vein needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203227108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785078A (en) * | 2014-03-06 | 2014-05-14 | 北京伏尔特技术有限公司 | Vein needle |
-
2013
- 2013-04-10 CN CN 201320177143 patent/CN203227108U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785078A (en) * | 2014-03-06 | 2014-05-14 | 北京伏尔特技术有限公司 | Vein needle |
| CN103785078B (en) * | 2014-03-06 | 2016-01-20 | 北京伏尔特技术有限公司 | Intravenous needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
|
| CX01 | Expiry of patent term |