CN2852940Y - Disposable blood taking needle - Google Patents
Disposable blood taking needle Download PDFInfo
- Publication number
- CN2852940Y CN2852940Y CN 200520045856 CN200520045856U CN2852940Y CN 2852940 Y CN2852940 Y CN 2852940Y CN 200520045856 CN200520045856 CN 200520045856 CN 200520045856 U CN200520045856 U CN 200520045856U CN 2852940 Y CN2852940 Y CN 2852940Y
- Authority
- CN
- China
- Prior art keywords
- needle
- needle body
- spring
- blood taking
- guard
- 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
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Abstract
The utility model relates to a disposable blood lancet, which is characterized in that a button is arranged on one end of the needle guard which has two corresponding runners. A group of splinters are arranged at one end of the needle body, and a breakable needle tip enclosure with safe plug is arranged at the other end of the needle body. When the blood lancet of the utility model is used, the breakable needle tip enclosure on the end of the needle body should be firstly twisted off to make the whole blood lancet in the state for use. When the button is pressed downward, the claw on the pressing piece will force the needle body to get off and spring forward and the needle tip will produce a power to puncture. When the needle body is moving forward, the splinters on the needle body will be pressed against the needle guard to produce elasticity which enables the needle body to recoil. However, because the spring is blocked by the runner and can not move forward, the spring will compress the top of the needle body when the needle body recoils. Thus, the needle body can not recoil to the initial state and the spring will not make the needle body to extend out of the needle guard so as to make sure that the blood lancet can only be used once, consequently greatly increasing the safety.
Description
Technical field:
This utility model relates to the technical field of blood taking needle, specifically a kind of disposable blood taking needle.
Background technology:
The blood taking needle that is adopted in the market; often do not force disposal type; the hazardness that exists secondary to use; cause the mutual infection between sufferer easily; there is great potential safety hazard; and existing disposal type blood taking needle often complex structure, processing technology require high; then make that production cost improves greatly; be difficult for applying; existing blood taking needle is not provided with protector simultaneously; user may be stabbed by needle point inadvertently, and safety is relatively poor, uses relatively difficulty especially for the old people.
Summary of the invention:
The purpose of this utility model is to provide a kind of improved disposable blood taking needle, and it can overcome in the prior art blood taking needle by secondary utilization, poor stability, the higher some shortcomings of cost.
To achieve these goals, the technical solution of the utility model is: a kind of disposable blood taking needle, it mainly comprises needle guard and the needle body of establishing within it, it is characterized in that: an end of needle guard is provided with a button, be provided with two corresponding chutes in the needle guard, one end of needle body is arranged with a shell fragment group, and the other end of needle body is provided with broken needle point cover, and needle point puts and is provided with safety cock.
Blood taking needle of the present utility model need be turned on the broken needle point cover in needle body end earlier during use, make whole blood taking needle be in state to be used, after pressing button was downward, the projection on the push jack can force needle body to break away from fast and eject forward, and needle point produces the effect of puncture.When needle body marches forward, be compressed the elastic force that is produced between shell fragment on the needle body and the needle guard, needle body is return, when needle body was return, spring will be pushed down the needle body top, made needle body can not get back to original state, but because spring is blocked and can't travel forward again by chute, and spring also can't make needle body be forced out needle guard again, guarantees that blood taking needle can only be by disposable use, and safety improves greatly.
Description of drawings:
Fig. 1 is the structural representation of this utility model one embodiment
Fig. 2 is a decomposition texture sketch map of the present utility model
Fig. 3 is the cutaway view of this utility model needle guard
The specific embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
This utility model mainly comprises needle guard 1 and the needle body of establishing within it 2, it is characterized in that: an end of needle guard is provided with a button 3, be provided with two corresponding chutes 4 in the needle guard, one end of needle body is arranged with a shell fragment group 5, the other end of needle body is provided with broken needle point cover 6, and needle point puts and is provided with safety cock 7.Described chute is the list structure of projection, its shape matches with the profile of needle body, spacing between chute is less than the diameter of spring, chute can provide needle body to carry out stable sliding, have simultaneously and stop that spring continues downward motion effect, make spring can stop that needle body bounces back into the home position, can only be to guarantee blood taking needle by disposable use.Safety cock is two, is strip and is arranged on needle point cover surface symmetrically, and the bottom of needle guard is provided with the needle outlet that matches with needle point cover and safety cock shape.The top of shell fragment group is arranged with a spring 8, and this spring and button offset, and the left and right sides of button is respectively equipped with a push jack 9, and push jack is provided with an outside projection 10.
The shell fragment group is made of two corresponding plastics shell fragments, two shell fragments be respectively "/" and " " shape, be provided with in the needle guard and two corresponding stoppers 11 in shell fragment position, the bottom of shell fragment is fastened on the stopper.It is one columned protruding 12 that one end of needle body is provided with, and this projection matches with the shell fragment group, is set in the shell fragment group, when shell fragment is moved downward by the thrust of button, just can promote needle body and move downward in the lump.
In force, to twist into two parts the needle point cover of needle body end earlier, whole blood taking needle just is in state to be used, after pressing the button, the push jack of button left and right sides will downward motion, and extrusion spring makes spring produce downward elastic force simultaneously, when push jack is run into two plastics shell fragments of shell fragment group, can force the plastics shell fragment to break away from stopping of the interior stopper of needle guard, and travel forward fast, under the effect of spring, the shell fragment group promotes needle body and ejects forward fast, finish the effect of puncture, when needle body travels forward, can produce elastic force because of the plastics shell fragment is compressed between shell fragment group and the needle guard, make needle body to swivel motion again, when the needle body resilience, spring just can be pushed down the top of needle body, makes needle body can't get back to original state, because spring is blocked and can't travel forward again by the needle guard internal chute, like this, blood taking needle just can't be used by secondary, has guaranteed the user and the person's of being punctured safety.
Claims (5)
1, a kind of disposable blood taking needle, it mainly comprises needle guard and the needle body of establishing within it, it is characterized in that: an end of needle guard is provided with a button, be provided with two corresponding chutes in the needle guard, one end of needle body is arranged with a shell fragment group, the other end of needle body is provided with broken needle point cover, and needle point puts and is provided with safety cock.
2, a kind of disposable blood taking needle according to claim 1 is characterized in that: described chute is the list structure of projection, and its shape matches with the profile of needle body, and the spacing between chute is less than the diameter of spring.
3, a kind of disposable blood taking needle according to claim 1, it is characterized in that: the top of shell fragment group is arranged with a spring, and this spring and button offset, and the left and right sides of button is respectively equipped with a push jack, and push jack is provided with an outside projection.
4, a kind of disposable blood taking needle according to claim 1, it is characterized in that: the shell fragment group is made of two corresponding plastics shell fragments, two shell fragments be respectively "/" and " " shape, be provided with in the needle guard and two corresponding stoppers in shell fragment position, the bottom of shell fragment is fastened on the stopper.
5, a kind of disposable blood taking needle according to claim 1, it is characterized in that: safety cock is two, is strip and is arranged on needle point cover surface symmetrically, the bottom of needle guard is provided with the needle outlet that matches with needle point cover and safety cock shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045856 CN2852940Y (en) | 2005-10-24 | 2005-10-24 | Disposable blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520045856 CN2852940Y (en) | 2005-10-24 | 2005-10-24 | Disposable blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852940Y true CN2852940Y (en) | 2007-01-03 |
Family
ID=37579564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520045856 Expired - Lifetime CN2852940Y (en) | 2005-10-24 | 2005-10-24 | Disposable blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852940Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455261C (en) * | 2005-10-24 | 2009-01-28 | 李福渊 | Disposable blood taking needle |
| CN107625526A (en) * | 2017-10-23 | 2018-01-26 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading pin |
| CN112603308A (en) * | 2020-12-17 | 2021-04-06 | 重庆市公共卫生医疗救治中心 | Blood drawing device for preventing AIDS cross infection |
-
2005
- 2005-10-24 CN CN 200520045856 patent/CN2852940Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455261C (en) * | 2005-10-24 | 2009-01-28 | 李福渊 | Disposable blood taking needle |
| CN107625526A (en) * | 2017-10-23 | 2018-01-26 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading pin |
| CN107625526B (en) * | 2017-10-23 | 2019-08-23 | 苏州施莱医疗器械有限公司 | A kind of blood collecting pen for preventing maloperation from unloading needle |
| CN112603308A (en) * | 2020-12-17 | 2021-04-06 | 重庆市公共卫生医疗救治中心 | Blood drawing device for preventing AIDS cross infection |
| CN112603308B (en) * | 2020-12-17 | 2022-10-04 | 重庆市公共卫生医疗救治中心 | Blood drawing device for preventing AIDS cross infection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGSHAN RUIFU MEDICAL SCIENCE AND TECHNOLOGY CO. Free format text: FORMER OWNER: SHANGHAI BAOERSHENG TRADE CO., LTD. Effective date: 20091127 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091127 Address after: Guangdong Province, Zhongshan City Industrial Zone Dragon Town Park Nam Nam second office floor of Building No. fifth, zip code: 528000 Patentee after: ZHONGSHAN REF MEDICAL SCIENCE & TECHNOLOGY CO., LTD. Address before: Room 21, room 21, A building, 1068 Xikang Road, Putuo District, Shanghai, zip code: 200060 Co-patentee before: Li Fuyuan Patentee before: Shanghai Bao Er Sheng Trade Co., Ltd. Branch |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070103 |
|
| EXPY | Termination of patent right or utility model |