CN201564487U - Blood returning type blood taking needle - Google Patents
Blood returning type blood taking needle Download PDFInfo
- Publication number
- CN201564487U CN201564487U CN2009202026528U CN200920202652U CN201564487U CN 201564487 U CN201564487 U CN 201564487U CN 2009202026528 U CN2009202026528 U CN 2009202026528U CN 200920202652 U CN200920202652 U CN 200920202652U CN 201564487 U CN201564487 U CN 201564487U
- Authority
- CN
- China
- Prior art keywords
- needle
- blood
- needle stand
- syringe needle
- hole
- 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 60
- 210000004369 blood Anatomy 0.000 title claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 230000036772 blood pressure Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010241 blood sampling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a blood taking needle, in particular to a blood returning type blood taking needle. The utility model provides the technical scheme as follows: the blood returning type blood taking needle comprises a transparent needle bed, a needle head and a rubber sleeve, wherein a through-hole for the needle head to penetrate is formed on the needle bed; the needle head is fixed with the needle bed through penetrating the through-hole on the needle bed; the two puncturing ends of the needle head respectively extend out of the needle bed; the rubber sleeve is sleeved on one puncturing end, and is sealed together with the needle bed; a blood returning channel is formed between the inner wall of the rubber sleeve and the peripheral surface of the needle head; an exhaust cavity communicated with the outside is formed on the needle bed; a water-resisting air filtration piece is arranged in the exhaust cavity; a connecting passage is formed between the through-hole on the needle bed and the peripheral surface of the needle head; the connecting passage is communicated respectively with the blood returning channel and the exhaust cavity; and the space between the opening of the through-hole 11 at the other end of the needle bed 1 opposite to the end sealed with the rubber sleeve 3 and the needle head 2 is sealed through a sealing piece 7. Through the adoption of the technical scheme, the utility model provides a blood returning blood taking needle which having the advantage of simple structure, and can realize blood returning observation.
Description
Technical field
This utility model relates to a kind of blood taking needle, particularly a kind of blood back type blood taking needle.
Background technology
At present, the blood taking needle on the market includes single head blood taking needle and double end blood taking needle, and general double end blood taking needle does not have air filter, during use, mainly is the clinical experience that relies on medical personnel.Behind the syringe needle puncture human vas, can't determine whether to puncture correctly or put in place, when blood sampling, just can judge, will carry out venipuncture again, increase medical personnel's workload, increase the waste of patient suffering and apparatus as not all right.
Summary of the invention
At the defective that prior art exists, this utility model provides a kind of blood back, blood back type blood taking needle simple in structure observed.
For achieving the above object, this utility model provides following technical scheme: a kind of blood back type blood taking needle, include needle stand, syringe needle and gum cover, the two ends of described syringe needle are all cutting tip, needle stand is provided with the through hole that penetrates for syringe needle, syringe needle is fixed by penetrating on the needle stand through hole and needle stand, and two cutting tips of syringe needle extend to outside the needle stand respectively, described gum cover is sheathed on one of them cutting tip place of syringe needle, and gum cover and needle stand sealing, leave the blood back passage between the inwall of described gum cover and the outer peripheral face of syringe needle, described needle stand is the transparent body, needle stand is provided with the discharge chamber with extraneous conducting, be provided with the air filtration part that blocks water in this discharge chamber, be provided with interface channel between the through hole on the needle stand and the outer peripheral face of syringe needle, this interface channel respectively with blood back passage and discharge chamber conducting, on the described needle stand relatively and gum cover seal between the opening part of through hole of the other end of an end and the syringe needle and seal by sealing member.
Adopt technique scheme, setting by blood back passage and needle stand between plug inwall and syringe needle outer peripheral face and syringe needle outer peripheral face interface channel, and interface channel and interface channel conducting, after making that syringe needle does not have the cutting tip of sheathed gum cover to insert human vas, blood is because the blood pressure effect, can enter in the gum cover by syringe needle, then by the interface channel between inflow needle stand of the blood back passage between gum cover and the syringe needle and the syringe needle, and needle stand is the transparent body, make medical personnel can observe blood back by the needle stand place, the operation that stops to puncture; The setting of discharge chamber is to form vacuum in order to prevent in syringe needle and the plug, makes blood to circulate, and waterproof, fungi-proofing is then played in the block water setting of air filtration part of discharge chamber place, but does not stop the effect of circulation of air.
This utility model further is set to: described needle stand is provided with the storage blood observation chamber by interface channel and discharge chamber conducting, on the described needle stand relatively and the gum cover via openings place and the sealing member between the syringe needle that seal the other end of an end be binding agent.
Wherein, storage blood observation chamber and the discharge chamber on the needle stand laterally arranged side by side along needle stand.
Adopt technique scheme, whether being provided with of storage blood observation chamber helps medical personnel can more clearly observe blood back, and storage blood observation chamber and discharge chamber are along needle stand convenient processing of laterally arranging side by side.
Below in conjunction with accompanying drawing this utility model is further described:
Description of drawings
The decomposing schematic representation that Fig. 1 implements for this utility model;
Fig. 2 is the structural representation of this utility model embodiment;
Fig. 3 is the I portion enlarged drawing of Fig. 2;
Fig. 4 is the II portion enlarged drawing of Fig. 2;
Fig. 5 is the schematic perspective view of syringe needle among this utility model embodiment;
Fig. 6 is the structural representation of needle stand among this utility model embodiment;
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of blood back type blood taking needle shown in Figure 6, include needle stand 1, syringe needle 2 and gum cover 3, the two ends of syringe needle 2 are all cutting tip 21, needle stand 1 is provided with the through hole 11 that penetrates for syringe needle 2, syringe needle 2 is fixing with needle stand 1 by penetrating on the needle stand 1 through hole 11, and two cutting tips 21 of syringe needle 2 extend to respectively outside the needle stand 1, gum cover 3 is sheathed on one of them cutting tip place of syringe needle 2, and gum cover 3 and needle stand 1 sealing, leave blood back passage 4 between the inwall 31 of gum cover 3 and the outer peripheral face 22 of syringe needle 2, described needle stand 1 is the transparent body, needle stand 1 is provided with the discharge chamber 12 with extraneous conducting, be provided with the air filtration part 5 that blocks water in this discharge chamber 12, be provided with interface channel 6 between the through hole 11 on the needle stand 1 and the outer peripheral face 22 of syringe needle 2, this interface channel 6 respectively with blood back passage 4 and discharge chamber 12 conductings, seal by sealing member 7 relatively and between the opening part of the through hole 11 of the other end of gum cover 3 sealings one end and the syringe needle 2 on the needle stand 1, sealing part 7 is a binding agent, certainly, also can seal rubber sleeve be set at this place, also be feasible.After syringe needle 2 does not have the cutting tip of sheathed gum cover 3 to insert human vas, blood is because the blood pressure effect, can enter in the gum cover 3 by syringe needle 2, then by the interface channel 6 between 4 inflow needle stands 1 of the blood back passage between gum cover 3 and the syringe needle 2 and the syringe needle 2, and needle stand 1 is the transparent body, make medical personnel to observe blood back by needle stand 1 place, the operation that stops to puncture.
In this utility model embodiment, the air filtration part 5 that blocks water is a filter membrane of being located at the opening part of discharge chamber 12 and extraneous conducting, and this air filtration part 5 that blocks water is waterproof, fungi-proofing, but does not stop the circulation of air; Needle stand 1 is provided with by the storage blood observation chamber 13 of interface channel 6 with discharge chamber 12 conductings, whether being provided with of storage blood observation chamber 13 helps medical personnel can more clearly observe blood back, and, storage blood observation chamber 13 is laterally arranged along needle stand 1 respectively side by side with discharge chamber 12, convenient processing is set like this, certainly, storage blood observation chamber 13 and discharge chamber 12 stagger, and to be provided with also be feasible.
Claims (3)
1. blood back type blood taking needle, include needle stand, syringe needle and gum cover, the two ends of described syringe needle are all cutting tip, needle stand is provided with the through hole that penetrates for syringe needle, syringe needle is fixed by penetrating on the needle stand through hole and needle stand, and two cutting tips of syringe needle extend to outside the needle stand respectively, described gum cover is sheathed on one of them cutting tip place of syringe needle, and gum cover and needle stand sealing, it is characterized in that: leave the blood back passage between the inwall of described gum cover and the outer peripheral face of syringe needle, described needle stand is the transparent body, needle stand is provided with the discharge chamber with extraneous conducting, be provided with the air filtration part that blocks water in this discharge chamber, be provided with interface channel between the through hole on the needle stand and the outer peripheral face of syringe needle, this interface channel respectively with blood back passage and discharge chamber conducting, on the described needle stand relatively and gum cover seal between the opening part of through hole of the other end of an end and the syringe needle and seal by sealing member.
2. blood back type blood taking needle according to claim 1, it is characterized in that: described needle stand is provided with the storage blood observation chamber by interface channel and discharge chamber conducting, on the described needle stand relatively and the gum cover via openings place and the sealing member between the syringe needle that seal the other end of an end be binding agent.
3. blood back type blood taking needle according to claim 2 is characterized in that: storage blood observation chamber and discharge chamber on the described needle stand are laterally arranged side by side along needle stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202026528U CN201564487U (en) | 2009-12-23 | 2009-12-23 | Blood returning type blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202026528U CN201564487U (en) | 2009-12-23 | 2009-12-23 | Blood returning type blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201564487U true CN201564487U (en) | 2010-09-01 |
Family
ID=42656767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202026528U Expired - Lifetime CN201564487U (en) | 2009-12-23 | 2009-12-23 | Blood returning type blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201564487U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105770A (en) * | 2015-09-25 | 2015-12-02 | 温州京环科技有限公司 | Blood taking needle with blood return visible |
| CN109222997A (en) * | 2018-10-12 | 2019-01-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of blood taking needle convenient for safe retrieving |
| CN112675408A (en) * | 2019-10-18 | 2021-04-20 | 贝克顿·迪金森公司 | Catheter system |
-
2009
- 2009-12-23 CN CN2009202026528U patent/CN201564487U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105770A (en) * | 2015-09-25 | 2015-12-02 | 温州京环科技有限公司 | Blood taking needle with blood return visible |
| CN109222997A (en) * | 2018-10-12 | 2019-01-18 | 河南曙光汇知康生物科技股份有限公司 | A kind of blood taking needle convenient for safe retrieving |
| CN112675408A (en) * | 2019-10-18 | 2021-04-20 | 贝克顿·迪金森公司 | Catheter system |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |