CN203506724U - Anti-reflux soft connection blood taking needle - Google Patents
Anti-reflux soft connection blood taking needle Download PDFInfo
- Publication number
- CN203506724U CN203506724U CN201320669066.0U CN201320669066U CN203506724U CN 203506724 U CN203506724 U CN 203506724U CN 201320669066 U CN201320669066 U CN 201320669066U CN 203506724 U CN203506724 U CN 203506724U
- Authority
- CN
- China
- Prior art keywords
- blood
- reflux
- seat
- opening film
- liquid storage
- 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
Links
- 239000008280 blood Substances 0.000 title claims abstract description 55
- 210000004369 blood Anatomy 0.000 title claims abstract description 55
- 230000000151 anti-reflux effect Effects 0.000 title abstract 5
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 238000010079 rubber tapping Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000006378 damage Effects 0.000 abstract description 4
- 238000010992 reflux Methods 0.000 abstract 4
- 230000002265 prevention Effects 0.000 abstract 1
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001194 anti-hemostatic effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses an anti-reflux soft connection blood taking needle which comprises a puncture needle and a blood taking needle head connected with a blood taking tube. The anti-reflux soft connection blood taking needle is characterized in that an anti-reflux device formed by a blood inlet seat, a one-way opening film and a blood outlet seat is disposed between the blood outlet tube of the puncture needle and the blood inlet tube of the blood taking needle head. The outer wall of the blood inlet end of the blood outlet seat is nested into and fixed in the inner wall of the blood outlet end of the blood inlet seat to allow a blood storage cavity to be formed between the blood inlet seat and the blood outlet seat. The one-way opening film for preventing blood reflux is mounted in the liquid storage cavity. Both the liquid storage cavity and the one-way opening film are of an inverted conical shape. When blood reflux occurs, the blood flowing to the one-way opening film can be blocked by the same, and blood reflux prevention is achieved. The anti-reflux soft connection blood taking needle is capable of preventing blood reflux and unnecessary medical accidents and avoiding human body damage, good in safety, and high in practicality.
Description
Technical field
This utility model relates to medical apparatus, especially relates to a kind of counterflow-preventing formula blood taking needle that is flexible coupling.
Background technology
The vacuum test tube major part of selling on market is not now sterile product, traditional formula blood taking needle that is flexible coupling does not have anti-backflow device, in blood collection procedure, likely there is blood back flow phenomenon, person of blood collecting one sees that blood backflow will cause unnecessary fear, thereby easily causes the injury to human body.
Summary of the invention
The purpose of this utility model is to provide a kind of can prevent that blood back flow, safety are good, practical, prevent that unnecessary malpractice from occurring, avoiding causing to human injury's the counterflow-preventing formula blood taking needle that is flexible coupling.
The purpose of this utility model is achieved in that
A kind of counterflow-preventing formula blood taking needle that is flexible coupling, comprise puncture needle and the blood collection needles being connected with blood taking tube, feature is: the anti-backflow device being comprised of feed liquor seat, unidirectional opening film and tapping seat is installed between the drain pipe of puncture needle and the feed tube of blood collection needles, the outer wall of the liquid feeding end of tapping seat is inserted in and is fixed in the inwall of liquid outlet of feed liquor seat, make to form between feed liquor seat and tapping seat the liquid storage cylinder of hollow, the unidirectional opening film that prevents blood back flow is installed in liquid storage cylinder.
Liquid storage cylinder be shaped as inverted cone, unidirectional opening film be shaped as the inverted cone of being close to liquid storage cylinder inwall, and the upper end-face edge of unidirectional opening film is stuck in the inner groovy of liquid storage cylinder upper end, prevents the downward slippage of unidirectional opening film.
This utility model is not change under the prerequisite of operation technique, between the puncture needle being flexible coupling and blood collection needles, connect the anti-backflow device of an anti-Hemostatic Oral Liquid, it is comprised of feed liquor seat, unidirectional opening film and tapping seat, when blood flows to the liquid storage cylinder of anti-backflow device from feed liquor seat, again by unidirectional opening film and the tapping seat blood collection needles of flowing through, enter blood taking tube, complete blood collection procedure.During if there is backflow of blood phenomenon, blood, when flowing to unidirectional opening film, stops by unidirectional opening film, thereby realizes the function of counterflow-preventing.Therefore, the utlity model has and can prevent that blood back flow, safety are good, practical, prevent that unnecessary malpractice from the advantage to human injury occurring, avoiding causing.
Accompanying drawing explanation
Fig. 1 is cross-sectional schematic of the present utility model;
Fig. 2 is the enlarged diagram of anti-backflow device.
the specific embodiment
Below in conjunction with embodiment and contrast accompanying drawing this utility model is described in further detail.
A kind of counterflow-preventing formula blood taking needle that is flexible coupling, comprise puncture needle 1 and the blood collection needles 8 being connected with blood taking tube, the anti-backflow device 3 being comprised of feed liquor seat 4, unidirectional opening film 5 and tapping seat 7 is installed between the drain pipe 2 of puncture needle 1 and the feed tube 7 of blood collection needles 8, the outer wall of the liquid feeding end of tapping seat 7 is inserted in and is fixed in the inwall of liquid outlet of feed liquor seat 4, make to form between feed liquor seat 4 and tapping seat 7 liquid storage cylinder 5 of hollow, the unidirectional opening film 6 that prevents blood back flow is installed in liquid storage cylinder 5.
Claims (2)
1. the counterflow-preventing formula blood taking needle that is flexible coupling, comprise puncture needle and the blood collection needles being connected with blood taking tube, it is characterized in that: the anti-backflow device being comprised of feed liquor seat, unidirectional opening film and tapping seat is installed between the drain pipe of puncture needle and the feed tube of blood collection needles, the outer wall of the liquid feeding end of tapping seat is inserted in and is fixed in the inwall of liquid outlet of feed liquor seat, make to form between feed liquor seat and tapping seat the liquid storage cylinder of hollow, the unidirectional opening film that prevents blood back flow is installed in liquid storage cylinder.
2. the counterflow-preventing according to claim 1 formula blood taking needle that is flexible coupling, it is characterized in that: liquid storage cylinder be shaped as inverted cone, unidirectional opening film be shaped as the inverted cone of being close to liquid storage cylinder inwall, and the upper end-face edge of unidirectional opening film is stuck in the inner groovy of liquid storage cylinder upper end, prevent the downward slippage of unidirectional opening film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669066.0U CN203506724U (en) | 2013-10-29 | 2013-10-29 | Anti-reflux soft connection blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669066.0U CN203506724U (en) | 2013-10-29 | 2013-10-29 | Anti-reflux soft connection blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203506724U true CN203506724U (en) | 2014-04-02 |
Family
ID=50365713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320669066.0U Expired - Lifetime CN203506724U (en) | 2013-10-29 | 2013-10-29 | Anti-reflux soft connection blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203506724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802271A (en) * | 2017-10-30 | 2018-03-16 | 中国人民解放军第三军医大学第附属医院 | Blood sampling remaining needle and application method |
-
2013
- 2013-10-29 CN CN201320669066.0U patent/CN203506724U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107802271A (en) * | 2017-10-30 | 2018-03-16 | 中国人民解放军第三军医大学第附属医院 | Blood sampling remaining needle and application method |
| CN107802271B (en) * | 2017-10-30 | 2020-05-15 | 中国人民解放军第三军医大学第一附属医院 | Indwelling needle for blood collection and method of use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 330052 No. 889 Fushan Second Road, Xiaolan Economic Development Zone, Nanchang City, Jiangxi Province Patentee after: Jiangxi Ruibang Industrial Group Co.,Ltd. Address before: 330200 No. 889 Fushan Second Road, Xiaolan Economic Development Zone, Nanchang County, Nanchang City, Jiangxi Province Patentee before: JIANGXI FUERKANG INDUSTRIAL GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |