CN203555743U - Accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn - Google Patents
Accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn Download PDFInfo
- Publication number
- CN203555743U CN203555743U CN201320727297.2U CN201320727297U CN203555743U CN 203555743 U CN203555743 U CN 203555743U CN 201320727297 U CN201320727297 U CN 201320727297U CN 203555743 U CN203555743 U CN 203555743U
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- CN
- China
- Prior art keywords
- needle
- blood taking
- box
- handle
- extension spring
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- Expired - Fee Related
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Abstract
The utility model discloses an accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn. The accidentally-pricking prevention type blood taking needle comprises a needle point, a needle handle and a blood transfusion tube, wherein the needle handle is connected with the needle point, and the blood transfusion tube is connected with the needle handle. The accidentally-pricking prevention type blood taking needle further comprises a needle hiding box. A guide hole which is matched with the needle handle in a single freedom degree sliding mode is formed in one end of the needle hiding box, and a needle hole for allowing the needle point to come in and get out of the needle hiding box is formed in the other end of the needle hiding box. A switching device for controlling the needle point to come in and get out of the needle hiding box is arranged on the needle hiding box. According to the accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn, after blood taking, the needle point can be automatically withdrawn into the needle hiding box under the effect of a first tension spring, and therefore medical workers are prevented from being accidentally pricked by the blood taking needle when inserting and pulling out the blood taking needle frequently, and can be protected from infection by blood of patients.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of blood taking needle.
Background technology
Blood taking needle is a kind of blood sampling instrument of extensive use, and it is generally comprised of syringe needle, needle handle and the blood transfusion tube being connected with syringe needle, outside syringe needle is directly exposed to and is exposed to.
For being responsible for the personnel of blood sampling work in hospital, will carry out a large amount of blood sampling work its every day, use frequently blood taking needle, a large amount of used blood taking needles have also been piled up in scene therefore, and staff high frequency fast contact pin pull out in pin process, expose blood taking needle syringe needle and easily stab staff, and use the blood blood taking needle with patient easily disease to be conducted heat to blood sampling staff, jeopardize staff healthy.
Therefore, need to improve blood taking needle of the prior art, to improve the safety of blood sampling work.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of anti-error formula blood taking needle that rolls that can automatic drawing back, and it can make blood taking needle syringe needle automatic drawing back after blood sampling hide, and syringe needle can not contact with medical worker, can solve the problem that blood taking needle is pricked medical worker by mistake.
This utility model can automatic drawing back the anti-error formula blood taking needle that rolls, the needle handle that comprise needle point, is connected with needle point and the blood transfusion tube being connected with needle handle, also comprise needle box, one end of needle box is provided with the pilot hole being slidably matched with needle handle single-degree-of-freedom, and the other end of needle box is provided with the pin hole for needle point turnover needle box;
On described needle box, be also provided with the switching device of controlling needle point turnover needle box.
Further, described switching device comprises wedge shape fixture block, the first extension spring, lever, the second extension spring and button spindle, described wedge shape fixture block is fixed on needle handle, the large end of wedge shape fixture block connects by the first extension spring with the needle box end that is provided with pilot hole, described lever is hinged on needle box, one end of described lever is provided with catches on the large end of wedge shape fixture block to prevent the hook of the first extension spring resilience under the first extension spring extended state, the other end and the button spindle of described lever are hinged, described button spindle stretches out needle box, and be slidably matched with needle box, one end of described the second extension spring is connected on needle box, the other end is connected on lever.
Further, the rear end of described needle handle is provided with the handle of pushing pin, and the front end of needle handle is the one end being connected with needle point.
Further, the end of described blood transfusion tube is connected with the plug coordinating with vacuum test tube.
The beneficial effects of the utility model:
1, the anti-error formula blood taking needle that rolls that this utility model can automatic drawing back; after blood sampling needle point can automatic drawing back under the effect of the first extension spring in needle box; thereby gram avoid medical worker by used blood taking needle, to be missed bundle in quick high-frequency blood sampling work process, can protect medical worker by blood samples of patients, not infected.
2, the anti-error formula blood taking needle that rolls that this utility model can automatic drawing back, its overall structure is simple, uses easy to operately, and low cost of manufacture, is suitable for extensively promoting in hospital.
Accompanying drawing explanation
Fig. 1 is that the anti-error formula blood taking needle that rolls that this utility model can automatic drawing back stretches out the structural representation under state at needle point;
Fig. 2 is the anti-error structural representation of formula blood taking needle under needle point retracted mode that roll that this utility model can automatic drawing back.
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is further described.
As shown in the figure, the present embodiment can automatic drawing back the anti-error formula blood taking needle that rolls, the needle handle 2 that comprise needle point 1, is connected with needle point 1 and the blood transfusion tube 3 being connected with needle handle 2, also comprise needle box 4, one end of needle box 4 is provided with the pilot hole being slidably matched with needle handle 2 single-degree-of-freedoms, and the other end of needle box 4 is provided with the pin hole 41 for needle point turnover needle box 4; On described needle box 4, be also provided with the switching device of controlling needle point 1 turnover needle box 4.
In the present embodiment, described pilot hole is square, and the outline of described needle handle 2 is the cuboid with guide pad shape adaptation; Certainly in different embodiments, described pilot hole also can be regular polygon or ellipse, and the outline of needle handle 2 and the shape of pilot hole match simultaneously; Aforementioned structure all can make needle handle 2 and pilot hole realize single-degree-of-freedom to be slidably matched.
In the present embodiment, described switching device comprises wedge shape fixture block 5, the first extension spring 6, lever 7, the second extension spring 8 and button spindle 9, described wedge shape fixture block 5 is fixed on needle handle 2, the large end of wedge shape fixture block 5 connects by the first extension spring 6 with the needle box end that is provided with pilot hole, described lever 7 is hinged on needle box 4, one end of described lever 4 is provided with in the first extension spring draws 6 to stretch under state and catch on the large end of wedge shape fixture block to prevent the hook 71 of the first extension spring 6 resiliences, the other end of described lever 7 and button spindle 9 are hinged, described button spindle 9 stretches out needle box 4, and be slidably matched with needle box 4, one end of described the second extension spring 8 is connected on needle box 4, the other end is connected on lever 7.
Before blood sampling, needle point 1 is arranged in needle box 4, during blood sampling, with hand propelled needle handle 2, needle point 1 is passed from pin hole 41, in needle handle 2 reach processes, wedge shape fixture block 5 promotion hooks 71 rotate around lever jointed shaft, when needle point 1, release and link up with the 71 large ends that just catch on wedge shape fixture block 5 while putting in place, to prevent that needle point 1 from retreating, the second extension spring 8 provides pulling force so that hook 71 reliably catches on wedge shape fixture block 5 and holds greatly to lever 7.
After blood sampling; press the button bar 9; thereby hook 71 rotates separated with wedge shape fixture block 5 around lever jointed shaft; needle point 1 just automatically returns in needle box 4 under the effect of the first extension spring 6; thereby avoid medical worker by blood taking needle mistake, to be pricked when frequent plug blood taking needle, can protect medical worker by blood samples of patients, not infected.
As the improvement to this enforcement, the rear end of described needle handle 2 is provided with the handle 10 of pushing pin, by the extrapolated needle point 1 of the handle 10 of pushing pin, more convenient operation.
As the improvement to this enforcement, the end of described blood transfusion tube 3 is connected with the plug 11 coordinating with vacuum test tube, make this blood taking needle can be directly and vacuum test tube be used in conjunction with, practical.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although this utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. the anti-error formula blood taking needle that rolls that can automatic drawing back, the needle handle that comprise needle point, is connected with needle point and the blood transfusion tube being connected with needle handle, is characterized in that:
Also comprise needle box, one end of needle box is provided with the pilot hole being slidably matched with needle handle single-degree-of-freedom, and the other end of needle box is provided with the pin hole for needle point turnover needle box;
On described needle box, be also provided with the switching device of controlling needle point turnover needle box.
2. the anti-error formula blood taking needle that rolls that can automatic drawing back according to claim 1, it is characterized in that: described switching device comprises wedge shape fixture block, the first extension spring, lever, the second extension spring and button spindle, described wedge shape fixture block is fixed on needle handle, the large end of wedge shape fixture block connects by the first extension spring with the needle box end that is provided with pilot hole, described lever is hinged on needle box, one end of described lever is provided with catches on the large end of wedge shape fixture block to prevent the hook of the first extension spring resilience under the first extension spring extended state, the other end and the button spindle of described lever are hinged, described button spindle stretches out needle box, and be slidably matched with needle box, one end of described the second extension spring is connected on needle box, the other end is connected on lever.
3. the anti-error formula blood taking needle that rolls that can automatic drawing back according to claim 2, is characterized in that: the rear end of described needle handle is provided with the handle of pushing pin.
4. the anti-error formula blood taking needle that rolls that can automatic drawing back according to claim 3, is characterized in that: the end of described blood transfusion tube is connected with the plug coordinating with vacuum test tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727297.2U CN203555743U (en) | 2013-11-15 | 2013-11-15 | Accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320727297.2U CN203555743U (en) | 2013-11-15 | 2013-11-15 | Accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203555743U true CN203555743U (en) | 2014-04-23 |
Family
ID=50505498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320727297.2U Expired - Fee Related CN203555743U (en) | 2013-11-15 | 2013-11-15 | Accidentally-pricking prevention type blood taking needle capable of being automatically withdrawn |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203555743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691467A (en) * | 2017-02-27 | 2017-05-24 | 青岛市中心血站 | Triggering structure of blood sampling device |
-
2013
- 2013-11-15 CN CN201320727297.2U patent/CN203555743U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106691467A (en) * | 2017-02-27 | 2017-05-24 | 青岛市中心血站 | Triggering structure of blood sampling device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20171115 |