CN2260619Y - Double-seat syringe needle - Google Patents
Double-seat syringe needle Download PDFInfo
- Publication number
- CN2260619Y CN2260619Y CN 95227119 CN95227119U CN2260619Y CN 2260619 Y CN2260619 Y CN 2260619Y CN 95227119 CN95227119 CN 95227119 CN 95227119 U CN95227119 U CN 95227119U CN 2260619 Y CN2260619 Y CN 2260619Y
- Authority
- CN
- China
- Prior art keywords
- needle
- double
- injection
- needle stand
- liquor 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 - Fee Related
Links
Abstract
The utility model relates to the category of medical appliance, particularly a double-seat syringe needle capable of preventing a needle cylinder from being contaminated. An original needle holder serves as an outer needle holder which is sheathed in an inner needle holder with a liquor hole; an elastic membrane tube for sealing the liquor hole is sheathed tightly outside the inner needle holder. Positive pressure causes the elastic membrane tube to be opened in injection, and physic liquor is ejected through the liquor hole. When injection is stopped, the elastic membrane tube shrinks and seals the liquor hole to prevent blood, etc. from entering the needle cylinder. The double-seat syringe needle is used once, and the needle cylinder can be reused; therefore, not only the function of cross-infection prevention is achieved, but also the cost is reduced.
Description
This utility model relates to the category of medical apparatus and instruments, particularly a kind of two-seater injection needle that can prevent the syringe pollution of syringe.
Original injection needle is made up of a needle stand and needle tubing, and the blood of human body can be in syringe needle enters syringe during use.Cross infection easily takes place if syringe is reused.
Be head it off, promote the use of disposable syringe in recent years, play a part positive through the cross infection that syringe causes preventing.But disposable syringe cost height, all discarded after using, the insufficient area of health resources is difficult to promote.
The purpose of this utility model is that a kind of improved two-seater injection needle will be provided, and it not only can prevent the cross infection that causes through syringe effectively, and reduces cost significantly.
The purpose of this utility model is achieved in that the needle stand of original injection needle as outer needle stand, is inserted in an interior needle stand that the liquid hole is arranged outside in the needle stand.Interior needle stand is tightly overlapping the elastic film pipe in Masking sol hole outward.Press operating routine, after needle tubing thrusts human body, will aspirate the observation blood back during injection.The recessed liquid-entering hole of the elastic film in confining liquid hole makes and produces negative pressure in the outer needle stand during suction, can be observed by transparent outer needle stand whether blood back is arranged.Because of the liquid hole is closed, blood can not enter syringe.The malleation that produces in the syringe when injecting makes the elastic film enlargement of pipe through the liquid hole, and open in the liquid hole.Medicinal liquid injects human body through the liquid hole to needle tubing.Malleation disappears when stopping to inject, and elastic film pipe pinch confinement liquid hole guarantees that syringe is not contaminated.
This utility model only needs the interior needle stand in a flexible film tube confining liquid hole of cover in the needle stand of original injection needle, and process drum is single.The two-seater injection needle is as disposable use, and syringe not only can prevent cross infection effectively as reusing, and can reduce cost significantly again.
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.
Fig. 1 is the profile according to the two-seater injection needle that the utility model proposes.
Describe in detail according to detail and the working condition that the utility model proposes below in conjunction with Fig. 1.
The two-seater injection needle comprises an outer needle stand main body (1), and an interior needle stand (2) is arranged in the main body, and the liquid hole (3) of interior needle stand communicates inside and outside needle stand, and the elastic film pipe (4) that interior needle stand is tightly overlapping outward seals the liquid hole.
When producing negative pressure when the direction of arrow (7) moves, the piston (6) in the syringe (5) makes in the recessed liquid-entering hole of elastic film pipe (4) (3) in use.Also produce negative pressure in the outer needle stand (1) so that whether can observe blood back.Because of the liquid hole is closed, blood back can not enter in the syringe (5).When piston (6) along arrow (7) when rightabout moves, malleation enlarges elastic film pipe (4), medicinal liquid enters needle tubing (8) through liquid hole (3) and injects away.
Claims (2)
1, a kind of injection needle, particularly the two-seater injection needle of being made up of two needle stands is characterized in that overlapping an interior needle stand (2) in the needle stand (1) outside, and the liquid hole (3) and the outer needle stand of interior needle stand communicate.
2, two-seater injection needle according to claim 1 is characterized in that the outer tight cover of interior needle stand (2) is hiding the elastic film pipe (4) in liquid hole (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227119 CN2260619Y (en) | 1995-11-11 | 1995-11-11 | Double-seat syringe needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227119 CN2260619Y (en) | 1995-11-11 | 1995-11-11 | Double-seat syringe needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2260619Y true CN2260619Y (en) | 1997-08-27 |
Family
ID=33873093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227119 Expired - Fee Related CN2260619Y (en) | 1995-11-11 | 1995-11-11 | Double-seat syringe needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2260619Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476072A (en) * | 2016-01-14 | 2016-04-13 | 卓尔悦（常州）电子科技有限公司 | Atomizing head, atomizer and electronic cigarette thereof |
-
1995
- 1995-11-11 CN CN 95227119 patent/CN2260619Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105476072A (en) * | 2016-01-14 | 2016-04-13 | 卓尔悦（常州）电子科技有限公司 | Atomizing head, atomizer and electronic cigarette thereof |
| US10966457B2 (en) | 2016-01-14 | 2021-04-06 | Changzhou Jwei Intelligent Technology Co., Ltd. | Atomizing head, atomizer and electronic cigarette thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: NO.12, GONGYUAN ROAD, SUZHOU CITY, JIANGSU PROVINCE,P.R.CHINA TO: ROOM 205(MIDDLE), NO.7 BUILDING, FENGMEN ZHUJIA LANE, SUZHOU CITY, JIANGSU PROVINCE,P.R.CHINA |
|
| CP03 | Change of name, title or address |
Address after: Jiangsu city of Suzhou province Fengmen Zhu Lane 7 room 205 Patentee after: Xie Shigeng Address before: No. 12 Park Road, Jiangsu, Suzhou Patentee before: Xie Shigeng |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |