CN204744201U - Percussion formula blood taking needle of improvement structure - Google Patents
Percussion formula blood taking needle of improvement structure Download PDFInfo
- Publication number
- CN204744201U CN204744201U CN201520450752.8U CN201520450752U CN204744201U CN 204744201 U CN204744201 U CN 204744201U CN 201520450752 U CN201520450752 U CN 201520450752U CN 204744201 U CN204744201 U CN 204744201U
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- Prior art keywords
- needle
- spring
- percussion
- needle body
- blood taking
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Abstract
The utility model relates to a medical blood taking needle technical field, in particular to percussion formula blood taking needle of improvement structure, including casing, visor, percussion piece, spring and needle body, the one end of spring is equipped with the rear portion fastening connection of string leg that extends to beyond the spring body, the other end and needle body, the forward -mounted of needle body has the syringe needle, it is used for pressure spring to go up the leg pressing of hanging the leg to be equipped with on the percussion piece, the utility model discloses a human skin of percussion piece contact, the percussion action is accomplished to the needle body to retracting spring power. Because string leg on the spring is pushed down in the leg pressing on the percussion piece, the spring can not travel forward along with the needle body. Because the restriction of leg pressing and spring drift, needle body stop and reach the not exerted purpose of syringe needle in the fixed area in the casing, avoid syringe needle fish tail people or even secondary to use.
Description
Technical field
This utility model relates to medical blood-sampling needle technical field, particularly the structure improved trigger type blood taking needle of one.
Background technology
Disposable lancet is widely used in medical field, and wherein slide block and spring are one of most important accessories of blood taking needle, needs slide block and spring fitting in shell during use.At present in blood taking needle manufacturing enterprise, the assembling of spring and slide block can only be used for manual assembly, inefficiency, limits carrying out of Automated assembly.Simultaneously in existing structure, need after needle body percussion penetrates skin to carry out spacingly preventing it to be exposed under the action of the spring outside shell to needle body, cause secondary to use even cross infection.If can not carry out spacing to needle body, the solid needle needle point in blood taking needle is easy to expose and scratches people.Therefore the structure of slide block and spring just seems particularly important.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, a kind of structure improved trigger type blood taking needle is provided, by completing the firing action of spring force to needle body after percussion block contact human body skin, due to the extension lower limb on the leg pressing pressing spring on percussion block, spring is prevented to move forward with needle body under the effect of inertia of needle body.Needle body is the end be fixedly connected on spring, and after spring force release terminates, due to the restriction of leg pressing and spring free length, needle body rests in housing internal fixtion region the object reaching syringe needle and do not expose.
For solving the problem, this utility model provides following technical scheme:
A kind of structure improved trigger type blood taking needle, comprise housing, over cap, percussion block, spring and needle body, one end of described spring is provided with the extension lower limb extended to beyond spring body, and the rear portion of the other end and needle body is fastenedly connected; The front portion of described needle body is provided with syringe needle; Described percussion block is provided with for compressing the leg pressing of hanging lower limb.
Further, described percussion block is provided with two in angular distribution leg pressing and two symmetrical percussion lower limbs; The inner side of two described percussion lower limbs is all one-body molded triangular hook; The inside of described housing is one-body molded the stop block corresponding with described percussion lower limb; Described stop block establishes guiding surface; The front end face of described percussion block offers dew pin hole.
Further, also one-body molded on described percussion block have mousing-hook; Described inner walls is provided with the groove that mousing-hook coordinates; Described inner walls is also provided with the escape groove corresponding with pulling the trigger lower limb.
Further, described needle body is provided with the hangers matched with triangular hook.
Further, the chute for holding spring and needle body is provided with in described housing; Described chute offers the open slot coordinated with hangers.
Beneficial effect: the structure improved trigger type blood taking needle of one of the present utility model, by percussion block contact human body skin, retracting spring power completes firing action to needle body.Due to the extension lower limb on the leg pressing pressing spring on percussion block, spring can not travel forward with needle body.Due to the restriction of leg pressing and spring free length, needle body rests in housing internal fixtion region the object reaching syringe needle and do not expose, avoid syringe needle scratch people even secondary use.
Accompanying drawing explanation
Fig. 1 is this utility model decomposition texture schematic diagram;
Fig. 2 is the sectional structure schematic diagram before this utility model uses;
Fig. 3 is the sectional structure schematic diagram after this utility model uses;
Fig. 4 is the three-dimensional cutaway view of this utility model middle shell;
Description of reference numerals: housing 1, stop block 1a, guiding surface 1b, groove 1c, escape groove 1d, open slot 1e; over cap 2, percussion block 3, leg pressing 3a, percussion lower limb 3b, triangular hook 3c, dew pin hole 3d; mousing-hook 3e, spring 4, hangs lower limb 4a, needle body 5, hangers 5a, syringe needle 6.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, specific embodiment of the utility model is described in further detail:
Referring to figs. 1 through the structure improved trigger type blood taking needle of the one shown in Fig. 4, comprise housing 1, over cap 2, percussion block 3, spring 4 and needle body 5, one end of described spring 4 is provided with the extension lower limb 4a extended to beyond spring 4 body, and the rear portion of the other end and needle body 5 is fastenedly connected; The front portion of described needle body 5 is provided with syringe needle 6; Described percussion block 3 is provided with for compressing the leg pressing 3a hanging lower limb 4a.
It is to angular distribution leg pressing 3a and two symmetrical percussion lower limb 3b that described percussion block 3 is provided with two; The inner side of two described percussion lower limb 3b is all one-body molded triangular hook 3c; The inside of described housing 1 is one-body molded the stop block 1a corresponding with described percussion lower limb 3b; Described stop block 1a establishes guiding surface 1b; The front end face of described percussion block 3 offers dew pin hole 3d.
Also one-body molded on described percussion block 3 have mousing-hook 3e; Described housing 1 inwall is provided with the groove 1c that mousing-hook 3e coordinates; Described housing 1 inwall is also provided with the escape groove 1d corresponding with pulling the trigger lower limb 3b.
Described needle body 5 is provided with the hangers 5a matched with triangular hook 3c.
The chute for holding spring 4 and needle body 5 is provided with in described housing 1; Described chute offers the open slot 1e coordinated with hangers 5a.
Shown in composition graphs 1, Fig. 2 and Fig. 4, brief description this utility model installation method:
First needle body 5 is arranged on spring 4 and is not provided with the one end hanging lower limb 4a, and be positioned over together with needle body 5 by spring 4 in the chute in housing 1, hangers 5a needs to be stuck in open slot 1e.Again percussion block 3 is installed in housing 1, in installation process, the bottom of needle body 5 to housing 1 advances by the hangers 5a that the triangular hook 3c on percussion block 3 pushes down on needle body 5, and in progradation, spring 4 is compressed, until the mousing-hook 3e on percussion block 3 enters in the groove 1c on housing 1.
Shown in composition graphs 1, Fig. 2, Fig. 3 and Fig. 4, the course of action of each parts when brief description this utility model is practical:
In blood sampling process, the front portion of percussion block 3 first with contact human skin, in pressing process, pull the trigger block 3 move in housing 1, when pulling the trigger lower limb 3b and touching stop block 1a, due to the effect of guiding surface 1b stop block 1a on, it is softened laterally to pull the trigger lower limb 3b.Hangers 5a in the process that percussion lower limb 3b is softened on needle body 5 depart from triangular hook 3c be limited in the effect of spring 4 power under outwards launch along chute, finally make the syringe needle 6 of needle body 5 front portion prick into human body skin through the dew pin hole 3d on percussion block 3, complete blood sampling action.
It is emphasized that when spring 4 power release rear spring 4 returns to its drift, due to the restriction of leg pressing 3a in spring 4 drift and percussion block 3, needle body 5 to rest in housing 1 in appointed area and syringe needle 6 does not expose.
The above, it is only preferred embodiment of the present utility model, not any restriction is made to technical scope of the present utility model, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (5)
1. a structure improved trigger type blood taking needle, comprise housing (1), over cap (2), percussion block (3), spring (4) and needle body (5), it is characterized in that: one end of described spring (4) is provided with the extension lower limb (4a) extended to beyond spring body, and the rear portion of the other end and needle body (5) is fastenedly connected; The front portion of described needle body (5) is provided with syringe needle (6); Described percussion block (3) is provided with for compressing the leg pressing (3a) of hanging lower limb (4a).
2. the structure improved trigger type blood taking needle of one according to claim 1, is characterized in that: described percussion block (3) is provided with two in angular distribution presser feet and two symmetrical percussion lower limbs (3b); The inner side of two described percussion lower limbs (3b) is all one-body molded triangular hook (3c); The inside of described housing (1) is one-body molded the stop block (1a) corresponding with described percussion lower limb (3b); Described stop block (1a) is established guiding surface (1b); The front end face of described percussion block (3) offers dew pin hole (3d).
3. the structure improved trigger type blood taking needle of one according to claim 2, is characterized in that: described percussion block (3) is above also one-body molded mousing-hook (3e); Described housing (1) inwall is provided with the groove (1c) that mousing-hook (3e) coordinates; Described housing (1) inwall is also provided with the escape groove (1d) corresponding with pulling the trigger lower limb (3b).
4. the structure improved trigger type blood taking needle of one according to claim 2, is characterized in that: described needle body (5) is provided with the hangers (5a) matched with triangular hook (3c).
5. the structure improved trigger type blood taking needle of one according to claim 4, is characterized in that: be provided with the chute for holding spring (4) and needle body (5) in described housing (1); Described chute offers the open slot (1e) coordinated with hangers (5a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450752.8U CN204744201U (en) | 2015-06-24 | 2015-06-24 | Percussion formula blood taking needle of improvement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450752.8U CN204744201U (en) | 2015-06-24 | 2015-06-24 | Percussion formula blood taking needle of improvement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204744201U true CN204744201U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520450752.8U Expired - Fee Related CN204744201U (en) | 2015-06-24 | 2015-06-24 | Percussion formula blood taking needle of improvement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204744201U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264561A (en) * | 2016-08-25 | 2017-01-04 | 天津华鸿科技股份有限公司 | A kind of side trigger-type hemostix |
| CN106963395A (en) * | 2017-04-10 | 2017-07-21 | 王振民 | Triggering safe hemostix blind can be held with percussion perceptional function |
| CN109259773A (en) * | 2018-10-19 | 2019-01-25 | 宁波美生医疗器材有限公司 | A kind of push type blood taking needle |
-
2015
- 2015-06-24 CN CN201520450752.8U patent/CN204744201U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264561A (en) * | 2016-08-25 | 2017-01-04 | 天津华鸿科技股份有限公司 | A kind of side trigger-type hemostix |
| CN106963395A (en) * | 2017-04-10 | 2017-07-21 | 王振民 | Triggering safe hemostix blind can be held with percussion perceptional function |
| CN109259773A (en) * | 2018-10-19 | 2019-01-25 | 宁波美生医疗器材有限公司 | A kind of push type blood taking needle |
| CN109259773B (en) * | 2018-10-19 | 2024-06-11 | 宁波美生医疗器材有限公司 | Push type blood taking 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: 20151111 Termination date: 20190624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |