CN209091404U - Disposable pen type anti-reverse flow pattern vein blood taking needle safely - Google Patents
Disposable pen type anti-reverse flow pattern vein blood taking needle safely Download PDFInfo
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- CN209091404U CN209091404U CN201721409052.XU CN201721409052U CN209091404U CN 209091404 U CN209091404 U CN 209091404U CN 201721409052 U CN201721409052 U CN 201721409052U CN 209091404 U CN209091404 U CN 209091404U
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- needle
- check valve
- needle stand
- blood
- fixing seat
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Abstract
The utility model relates to medical appliance fields, specifically, being related to disposable pen type anti-reverse flow pattern vein blood taking needle safely.Including venipuncture needle and needle stand, it is equipped with check valve fixing seat in the cavity of the needle stand, is equipped with counterflow-preventing check valve in the check valve fixing seat；The check valve fixing seat is assemblied in needle stand inner cavity from the front end grafting of needle stand；The tail end grafting of the venipuncture needle is assemblied in the blood inlet of check valve fixing seat；The end for puncturing end protective cover covers on the front outer wall of needle stand；Grafting is equipped with pipe close puncture needle on the tail portion blood outlet of the needle stand, is cased with latex sheath on the pipe close puncture needle；The outside of the latex sheath is cased with butt end protective case, and the front end sleeve of the docking end protective cover is on the outer wall for puncturing end protective cover end.The utility model can prevent the blood moment in negative pressure hemostix container from returning to human body, and blood sample is directly entered needle stand by venipuncture needle, can greatly reduce the waste of blood sample.
Description
Technical field
The utility model relates to medical appliance fields, specifically, being related to disposable pen type anti-reverse flow pattern safely
Vein blood taking needle.
Background technique
Occur the case where blood back flow the Huis' body in blood collecting containers often in human vein blood sampling, so, hold in blood sampling
It is to be formulated with sterile form in the production standard of device.But negative pressure blood-taking tube is all glass mostly, in blood collecting containers
Reagent is embodied in a manner of viable bacteria, and so, to blood collecting containers, integrally sterile processing method is just very tired
It is difficult.
Utility model content
The purpose of the utility model is to provide it is a kind of can effectively avoid venous blood collection when blood collecting containers in blood back flow
The anti-reverse flow pattern vein blood taking needle safely of disposable pen type into the human body, to solve above-mentioned technical problem.
To achieve the above object, the technical scheme adopted by the utility model is
Disposable pen type anti-reverse flow pattern vein blood taking needle, including venipuncture needle safely, the venipuncture needle
Needle body on be cased with puncture end protective cover；It is characterized by also including needle stand, fixed in the cavity of the needle stand equipped with check valve
, counterflow-preventing check valve is equipped in the check valve fixing seat；The check valve fixing seat is assembled from the front end grafting of needle stand
In needle stand inner cavity；The tail end grafting of the venipuncture needle is assemblied in the blood inlet of check valve fixing seat；The cutting tip
The end of protective case covers on the front outer wall of needle stand；Grafting is equipped with for connecting negative pressure on the tail portion blood outlet of the needle stand
The pipe close puncture needle of blood collecting containers is cased with latex sheath on the pipe close puncture needle；The outside of the latex sheath is cased with docking
End protective cover, the front end sleeve of the docking end protective cover is on the outer wall for puncturing end protective cover end.
The utility model has the advantages that compared with prior art, the utility model is equipped with the needle stand of interior adverse current check valve of setting up defences, counterflow-preventing list
It can ensure that venous blood can only be flowed by needle stand, counterflow-preventing check valve to the pipe close puncture needle direction of docking from venipuncture needle to valve
It is dynamic；In human vein blood collection procedure, counterflow-preventing check valve is open state, and after blood collection, negative pressure hemostix container is extracted,
Counterflow-preventing check valve is closed immediately, to prevent the blood moment in negative pressure hemostix container from returning to human body, so, negative pressure is adopted
Blood container just completely cuts off with human body completely, even if there is bacterium in negative pressure hemostix container, also can not produce injury to human body；In addition, this reality
With novel small in size, easily portable and blood sampling operation, and blood sample is directly entered needle stand by venipuncture needle, can greatly reduce blood
The waste of sample.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention；
Fig. 2 is the decomposition texture schematic diagram of an embodiment of the present invention.
Specific embodiment
The utility model is further described in the following with reference to the drawings and specific embodiments.
Referring to Fig.1, Fig. 2, disposable pen type described in the utility model anti-reverse flow pattern vein blood taking needle safely, packet
Venipuncture needle 6 and needle stand 4 are included, is cased on the needle body of the venipuncture needle 6 and punctures end protective cover 5；The cavity of the needle stand 4
It is interior to be equipped with check valve fixing seat 7, counterflow-preventing check valve 8 is equipped in the check valve fixing seat 7；The check valve fixing seat 7
It is assemblied in 4 inner cavity of needle stand from the front end grafting of needle stand 4；The tail end grafting of the venipuncture needle 6 is assemblied in check valve and fixes
In the blood inlet of seat 7；The end for puncturing end protective cover 5 covers on the front outer wall of needle stand 4；The tail portion of the needle stand 4 goes out
Grafting is equipped with the pipe close puncture needle 1 for connecting negative pressure hemostix container on blood mouth, and latex shield is cased on the pipe close puncture needle 1
Set 3；The outside of the latex sheath 3 is cased with butt end protective case 2, and the front end sleeve of the docking end protective cover 2 is protected in cutting tip
On the outer wall of 5 end of sheath.
When carrying out human vein blood sampling operation, first removes and puncture end protective cover 5, utilize 6 puncturing veins blood of venipuncture needle
Pipe, blood enter needle stand 4 by check valve fixing seat 7, open counterflow-preventing check valve 8, enter pipe close from the blood outlet of needle stand 4 and wear
Pricker 1 is entered in negative pressure hemostix container by pipe close puncture needle 1.After blood collection, negative pressure hemostix container is extracted, and is prevented
Adverse current check valve 8 is closed immediately, to prevent blood moment in negative pressure hemostix container from returning to human body, negative pressure hemostix container just with
Human body completely cuts off completely, even if there is bacterium in negative pressure hemostix container, also can not produce injury to human body.
The basic principles and main features and technological merit of the utility model have been shown and described above.Those skilled in the art
Member it should be appreciated that described in above-described embodiment only illustrate the principles of the present invention, do not departing from the spirit of the present invention
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within claimed
In the scope of the utility model.The protection scope of the utility model is by claims and its equivalent thereof.
Claims (1)
1. disposable pen type anti-reverse flow pattern vein blood taking needle, including venipuncture needle (6) safely, the venipuncture needle
(6) it is cased on needle body and punctures end protective cover (5)；It is characterized by also including needle stand (4), set in the cavity of the needle stand (4)
Have check valve fixing seat (7), is equipped with counterflow-preventing check valve (8) on the check valve fixing seat (7)；The check valve fixing seat
(7) it is assemblied in needle stand (4) inner cavity from the front end grafting of needle stand (4)；The tail end grafting of the venipuncture needle (6) is assemblied in list
Into the blood inlet of valve fixing seat (7)；The end for puncturing end protective cover (5) covers on the front outer wall of needle stand (4)；It is described
Grafting is equipped with the pipe close puncture needle (1) for connecting negative pressure hemostix container on the tail portion blood outlet of needle stand (4), and the pipe close is worn
Latex sheath (3) are cased on pricker (1)；The outside of the latex sheath (3) is cased with butt end protective case (2), the butt end
The front end sleeve of protective case (2) is on the outer wall for puncturing end protective cover (5) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721409052.XU CN209091404U (en) | 2017-10-28 | 2017-10-28 | Disposable pen type anti-reverse flow pattern vein blood taking needle safely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721409052.XU CN209091404U (en) | 2017-10-28 | 2017-10-28 | Disposable pen type anti-reverse flow pattern vein blood taking needle safely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209091404U true CN209091404U (en) | 2019-07-12 |
Family
ID=67148491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721409052.XU Active CN209091404U (en) | 2017-10-28 | 2017-10-28 | Disposable pen type anti-reverse flow pattern vein blood taking needle safely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209091404U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107582075A (en) * | 2017-10-28 | 2018-01-16 | 刘贞宽 | Disposable pen type anti-reverse flow pattern vein blood taking needle safely |
-
2017
- 2017-10-28 CN CN201721409052.XU patent/CN209091404U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107582075A (en) * | 2017-10-28 | 2018-01-16 | 刘贞宽 | Disposable pen type anti-reverse flow pattern vein blood taking needle safely |
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