CN101190129B - Disposable blood taking needle - Google Patents
Disposable blood taking needle Download PDFInfo
- Publication number
- CN101190129B CN101190129B CN2006101187909A CN200610118790A CN101190129B CN 101190129 B CN101190129 B CN 101190129B CN 2006101187909 A CN2006101187909 A CN 2006101187909A CN 200610118790 A CN200610118790 A CN 200610118790A CN 101190129 B CN101190129 B CN 101190129B
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- China
- Prior art keywords
- needle
- needle body
- telescopic
- blood taking
- spring
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- 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 - Fee Related
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Abstract
The invention relates to a disposable blood taking needle, which is characterized in that: one end of a needle sleeve is provided with an extension sleeve, the left and right side surfaces of the needle sleeve are respectively provided with side catches, the upper and lower side surfaces of the needle sleeve are respectively provided with bottom catches, one end of a needle body is sleeved with a spring, the other end of the needle body is connected with a needle cap, and an elastic plate group is sleeved on the needle body. When in use, the needle cap is removed, the extension sleeve is compressed into the needle sleeve; squeezed by the extension sleeve, the elastic plate group can push the needle body to move upward to squeeze the spring, when the spring accumulates certain elastic power, the power can be released instantaneously, the elastic plate group and the needle body quickly pop-up downward, a needle tip can penetrate the a needle outlet hole, so as to complete the puncture work, after that, the elastic plate can be contracted upward under the function of a convex block which is arranged in the extension sleeve and is finally stayed at a tangent, so the needle body can not return to the initial state, the safety is improved, at the same time, the structure of the product is simple and the cost is lower.
Description
Technical field:
The present invention relates to technical field of medical, 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 object of the present invention is to provide a kind of improved disposable blood taking needle, it can overcome, and blood taking needle is used inconvenience, the higher some shortcomings of cost by secondary utilization, blood taking needle in the prior art.
To achieve these goals, technical scheme of the present invention is: disposable blood taking needle, it mainly comprises needle guard and is located at the interior needle body of needle guard, it is characterized in that: an end of needle guard is provided with a telescopic, the left and right side of needle guard is respectively equipped with side-lens, and the upper and lower side of needle guard is respectively equipped with the base catch, and an end of needle body is arranged with spring, the other end of needle body links to each other with the pin medicated cap, is arranged with the shell fragment group on the needle body.
Blood taking needle of the present invention need take out the pin medicated cap earlier during use, in needle guard, compress telescopic then, at this moment under the extruding of telescopic, the shell fragment group will promote the needle body extrusion spring then that moves upward, when the shell fragment group continues to move upward, shell fragment will inwardly shrink under the stopping of side-lens, will abrupt release after spring accumulates to certain elasticity kinetic energy, shell fragment group and needle body are ejected downwards fast, at this moment needle point just can pass needle outlet, finish blood sampling work, follow under the effect of projection in telescopic, shell fragment can upwards shrink, and finally rests on the tangent line place of projection, make needle body can not return original state, and the groove 2 of telescopic is also fixed by overhead kick, guarantees that blood taking needle can only be by disposable use, and safety improves greatly, simple in structure being easy to of entire product produced simultaneously, and cost is reduced greatly.
Description of drawings:
Fig. 1 is the structural representation of one embodiment of the invention
Fig. 2 is a dispersed structure sketch map of the present invention
Fig. 3 is the sectional side view of telescopic of the present invention
Fig. 4 is the sectional side view of needle guard of the present invention
The specific embodiment:
The invention will be further described below in conjunction with drawings and Examples.
The present invention mainly comprises needle guard 3 and is located at the interior needle body 4 of needle guard, its difference with the prior art is: an end of needle guard is provided with a telescopic 5, the left and right side of needle guard is respectively equipped with side-lens 6, the upper and lower side of needle guard is respectively equipped with base catch 7, one end of needle body is arranged with spring 8, the other end of needle body links to each other with pin medicated cap 9, is arranged with shell fragment group 10 on the needle body.The top of needle body is cylindric, the needle body middle part is provided with a rectangular lamellar empennage, and the both sides of empennage 11 are provided with the cell body 12 that matches with side-lens, and the bottom of needle body is provided with a square body 13, one end of square body and pin medicated cap offsets, and is arranged with the shell fragment group between square body and the empennage.
The shell fragment group is made of two corresponding plastics shell fragments 14, two shell fragments be respectively "/" and " " shape; The two sides of telescopic are respectively equipped with groove 1 and groove 2, the side inwall of telescopic is provided with one group of symmetric projection 15, one end and the shell fragment of projection offset, the other end of projection links to each other with the outside end face of telescopic, the center that the outside end face of telescopic is provided with is provided with a needle outlet 16, the middle part of projection is provided with a tangent line 17, and the two ends of projection to tangent line place is inclined-plane 18.One end of needle guard is a blind end, the other end is the open end, one end of spring and the blind end of needle guard offset, the other end of spring and the empennage of needle body offset, the both sides inwall of needle guard open end is respectively equipped with an overhead kick 19 that matches with groove 1,2, overhead kick has certain elasticity, and an end of overhead kick is fixedlyed connected with needle guard, and the other end of overhead kick is a free end.One end of pin medicated cap is provided with two symmetric pin medicated cap catch 20, matches with the base catch in the position of pin medicated cap catch.
In force, take out the pin medicated cap earlier, needle outlet is aimed at the position that needs puncture, in needle guard, press telescopic then, at this moment under the extruding of telescopic, the shell fragment group will promote needle body and move upward and make the empennage extrusion spring, when the shell fragment group continues to move upward, shell fragment will inwardly shrink under the stopping of side-lens, will abrupt release after spring accumulates to certain elasticity kinetic energy, shell fragment group and needle body are ejected downwards fast, at this moment needle point just can pass needle outlet, finishing puncture working (can offset direction in moving downward process in order to ensure needle body, just added groove in the both sides of empennage, groove is fastened on the side-lens, moving up and down of needle body carried out) along the side-lens on both sides, then under the effect of inclined-plane projection, shell fragment can upwards shrink, finally rest on the tangent line place of projection, needle body can not return original state, and the groove 2 of telescopic is also fixed by overhead kick, guarantee that blood taking needle can only be by disposable use, safety improves greatly, and simple in structure being easy to of entire product produced simultaneously, and cost is reduced greatly.
Claims (4)
1. disposable blood taking needle, it mainly comprises needle guard and is located at the interior needle body of needle guard, it is characterized in that: an end of needle guard is provided with a telescopic, the left and right side of needle guard is respectively equipped with side-lens, and the upper and lower side of needle guard is respectively equipped with the base catch, and an end of needle body is arranged with spring, the other end of needle body links to each other with the pin medicated cap, be arranged with the shell fragment group on the needle body, the shell fragment group is made of two corresponding plastics shell fragments, two shell fragments be respectively "/" and " " shape; The two sides of telescopic are respectively equipped with first groove (1) and second groove (2), the side inwall of telescopic is provided with one group of symmetric projection, one end and the shell fragment of projection offset, the other end of projection links to each other with the outside end face of telescopic, the outside end face of telescopic is provided with a needle outlet, the middle part of projection is provided with a tangent line, and the two ends of projection to tangent line place is the inclined-plane.
2. disposable blood taking needle according to claim 1, it is characterized in that: the top of needle body is cylindric, the needle body middle part is provided with a rectangular lamellar empennage, the both sides of empennage are provided with the cell body that matches with side-lens, the bottom of needle body is provided with a square body, one end of square body and pin medicated cap offsets, and described shell fragment group is fastened between square body and the empennage.
3. disposable blood taking needle according to claim 2, it is characterized in that: an end of needle guard is a blind end, the other end is the open end, one end of spring and the blind end of needle guard offset, the other end of spring and the empennage of needle body offset, and the both sides inwall of needle guard open end is respectively equipped with an overhead kick that matches with first groove (1), second groove (2).
4. disposable blood taking needle according to claim 1 is characterized in that: an end of pin medicated cap is provided with two symmetric pin medicated cap catch, matches with the base catch in the position of pin medicated cap catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101187909A CN101190129B (en) | 2006-11-27 | 2006-11-27 | Disposable blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101187909A CN101190129B (en) | 2006-11-27 | 2006-11-27 | Disposable blood taking needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101190129A CN101190129A (en) | 2008-06-04 |
| CN101190129B true CN101190129B (en) | 2011-01-05 |
Family
ID=39485434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101187909A Expired - Fee Related CN101190129B (en) | 2006-11-27 | 2006-11-27 | Disposable blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101190129B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101816562B (en) * | 2010-04-22 | 2012-04-18 | 王琳 | Disposable automatic painless safe hemostix |
| CN103371832A (en) * | 2012-04-26 | 2013-10-30 | 上海宝尔生贸易有限公司 | Disposable blood taking needle |
| CN104983431A (en) * | 2015-06-19 | 2015-10-21 | 中山瑞福医疗器械科技有限公司 | Press type blood collection needle device |
| CN106859669B (en) * | 2017-01-22 | 2021-03-23 | 普昂(杭州)医疗科技股份有限公司 | Disposable safety blood taking needle, assembling method and using method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2507401Y (en) * | 2001-09-05 | 2002-08-28 | 朱鸿智 | Disposable blood taking needle |
| CN1602807A (en) * | 2003-09-30 | 2005-04-06 | 钱倚天 | Disposable safety acupuncture hemostix |
-
2006
- 2006-11-27 CN CN2006101187909A patent/CN101190129B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2507401Y (en) * | 2001-09-05 | 2002-08-28 | 朱鸿智 | Disposable blood taking needle |
| CN1602807A (en) * | 2003-09-30 | 2005-04-06 | 钱倚天 | Disposable safety acupuncture hemostix |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101190129A (en) | 2008-06-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20121127 |