CN203943968U - Venous transfusion entry needle - Google Patents
Venous transfusion entry needle Download PDFInfo
- Publication number
- CN203943968U CN203943968U CN201420063295.2U CN201420063295U CN203943968U CN 203943968 U CN203943968 U CN 203943968U CN 201420063295 U CN201420063295 U CN 201420063295U CN 203943968 U CN203943968 U CN 203943968U
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- CN
- China
- Prior art keywords
- pin
- spring
- venous transfusion
- needle
- entry needle
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A kind of venous transfusion entry needle, comprises interior pin 2 and outer pin 1, spring 3, handle 4, described in colloidal materials 5. in pin 2 be connected by spring 3 with outer pin 1, be elastic telescopic and be slidably matched, one of them is tack pin for interior pin 2 and outer pin 1, another is Tip-headed needle.Nurse moves after pin 2 and contact skin in the time of puncture vessel, before outer pin 1, goes out to pierce through skin intravasation, and pin 2 intravasations in outer pin 1 drives, because pin 2 in the non-resistance of blood vessel front ejects, puncture successfully.Nurse can determine the success of venous transfusion entry needle puncture vessel by seeing the flexible of spring 3.
Description
Technical field
This utility model relates to venous transfusion entry needle
Background technology
Venous transfusion is that hospital clinical gives emergency treatment to a patient and treats one of important measures of patient, at present the most frequently used single intravenous infusion note pin is to adopt tube for transfusion to be socketed in tubular needle, when use, syringe needle is pricked into patient's blood vessel, medicine is by tube for transfusion and transfusion needle intravasation.But this single intravenous infusion entry needle has following deficiency: one, transfusion is high to nurses ' professional level requirement, whether syringe needle is thrust to blood vessel and be difficult to hold.Two, infusion process, patient activity is limited, and pin less easy piercing blood vessel causes needle roller phenomenon.Above problem, is not up to the present solved well.
Summary of the invention
This utility model is for overcoming above deficiency.Propose not cause needle roller, and can judge the venous transfusion entry needle syringe needle venous transfusion entry needle whether whether intravasation, pricker complete with naked eyes.
For achieving the above object, venous transfusion entry needle of the present utility model has adopted following scheme: venous transfusion entry needle, comprise interior pin and outer pin, and between interior pin and outer pin, be connected by spring, one of them is tack pin for interior pin and outer pin, another is Tip-headed needle.The front end of the outstanding Tip-headed needle of tack pin front end, is elastic telescopic and is slidably matched.The present invention's useful effect is compared with the prior art that venous transfusion entry needle front end tack pin contact skin, under External Force Acting, moves after tack pin, before Tip-headed needle, go out, puncture blood vessel, Tip-headed needle intravasation, between two pins elastic force strengthen, tack pin can not after move, be also lowered to blood vessel with Tip-headed needle.Because blood vessel front does not have resistance, tack pin ejects, and ejects, thereby know that pricker completes when nurse sees tack pin.Meanwhile, tack pin front end, front, avoids occurring needle roller.
Brief description of the drawings
Fig. 1 is that outer pin is Tip-headed needle, and interior pin is tack pin, the structural representation of venous transfusion entry needle.
Fig. 2 is that outer pin is tack pin, and interior pin is Tip-headed needle, the structural representation of venous transfusion entry needle.
Detailed description of the invention
Below by concrete embodiment by reference to the accompanying drawings, the present invention is described in further details.
As shown in Figure 1, venous transfusion entry needle, outer pin 1 and interior pin 2, connect by one of elastomeric material spring 3.Spring 3 front ends are connected with outer pin 1, and spring 3 rear ends are connected with interior pin 2, and interior pin 2 front ends protrude from outer pin 1 front end, spring 3 outsides are covered by elastic colloidal material 5, prevent from being needled into blood vessel, and blood is under vascular pressure, by flowing out between interior pin 2 and outer pin 1,4 is handle.Outer pin 1 is Tip-headed needle, and interior pin 2 is tack pin, and outer pin 1 is elastic telescopic with interior pin 2 and is slidably matched.When venous transfusion entry needle front end and contact skin stressed, after interior pin 2 is stressed, move, before outer pin 1, go out, puncture blood vessel, pin 2 intravasations in driving, spring 3 stretches, and produces elastic force, when front non-resistance, interior pin 2 ejects under spring 3 effects, and nurse shrinks by seeing spring 3, knows that pricker completes.
As shown in Figure 2, venous transfusion entry needle comprises outer pin 2 and interior pin 1, is connected by one of elastomeric material spring 3.Outer pin 2 is tack pin, and interior pin 1 is Tip-headed needle, and outer pin 2 front ends protrude from interior pin 1 front end, spring 3 front ends are connected with outer pin 2, and rear end is connected with interior pin 1, and spring 3 outsides are covered by elastic colloidal material 5, anti-hemostatic tube blood from interior pin 1 and between pin 2 gap flow out, 4 is handle.When venous transfusion entry needle front end and contact skin stressed, after outer pin 2, move, before interior pin 1, go out to puncture blood vessel, interior pin 1 intravasation, spring 3 compresses, and along with elastic force strengthens, outer pin 2 and interior pin 1 intravasation, because front resistance is little, outer pin 2 ejects, and nurse sees that outer pin 2 ejects forward, and pricker completes.
Above content is in conjunction with concrete preferred version, embodiment, and nearly step of utility model is described in detail.Can not assert that concrete enforcement of the present utility model is confined to these explanations, the spring general reference here can produce elastic material.Do not depart from for this utility model under the prerequisite of this utility model design, can also make some simple deduction or replace, be all considered as belonging to protection domain of the present utility model.
Claims (2)
1. venous transfusion entry needle, comprises interior pin and outer pin, and one of them is tack pin for interior pin and outer pin, and another is Tip-headed needle, it is characterized in that: interior pin is connected by spring with outer pin, is elastic telescopic and is slidably matched.
2. according to venous transfusion entry needle described in right 1, it is characterized in that spring general reference can produce the material of elastic force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063295.2U CN203943968U (en) | 2014-02-09 | 2014-02-09 | Venous transfusion entry needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063295.2U CN203943968U (en) | 2014-02-09 | 2014-02-09 | Venous transfusion entry needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203943968U true CN203943968U (en) | 2014-11-19 |
Family
ID=51886035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063295.2U Expired - Fee Related CN203943968U (en) | 2014-02-09 | 2014-02-09 | Venous transfusion entry needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203943968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117534A1 (en) * | 2014-02-06 | 2015-08-13 | 闫雪松 | Intravenous infusion injection needle |
-
2014
- 2014-02-09 CN CN201420063295.2U patent/CN203943968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117534A1 (en) * | 2014-02-06 | 2015-08-13 | 闫雪松 | Intravenous infusion injection needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20160209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |