CN2338019Y - Disposable and airprssure type automatic syringe - Google Patents
Disposable and airprssure type automatic syringe Download PDFInfo
- Publication number
- CN2338019Y CN2338019Y CN 98236282 CN98236282U CN2338019Y CN 2338019 Y CN2338019 Y CN 2338019Y CN 98236282 CN98236282 CN 98236282 CN 98236282 U CN98236282 U CN 98236282U CN 2338019 Y CN2338019 Y CN 2338019Y
- Authority
- CN
- China
- Prior art keywords
- needle
- type automatic
- valve
- syringe
- pressure
- 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
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Abstract
The utility model relates to a disposable and gas press type automatic syringe which comprises a needle cylinder body, a needle head seat and a piston arranged in the cavity of the needle cylinder, wherein, the needle head seat and the cavity of needle cylinder are communicated through a manual valve, the cavity of the needle cylinder is vacuum, a cylinder barrel is arranged at the back end of the needle cylinder body, and the inner cavity of the cylinder barrel is charged with compressed gas and is communicated with the cavity of the needle cylinder through a manual pneumatic valve. The utility model needs only switching on two manual valves to achieve the suction and injection of physic liquor, which not only brings convenience for use, but also has better disposable effect owing to the incapacity of reuse after used once.
Description
This utility model relates to a kind of disposable use vapour-pressure type automatic injector that is used for medication injections, belongs to a kind of medical apparatus.
Existing disposable syringe is by syringe and is with the push rod of piston to constitute, this syringe drawing liquid is in use undertaken by manual entirely with injection, therefore using operates often makes things convenient for inadequately, it is especially true when some medical treatment situation uses, in addition, this syringe also is easy to be repeated use, and causes the harm to health of people.
The purpose of this utility model is to provide a kind of disposable use vapour-pressure type automatic injector at the deficiency of above-mentioned existence, and it not only is easy to use, and can more strictly realize disposable use.
This utility model is realized by following technical scheme: have a needle cylindrical unit 6, be provided with needle holder 2 at the needle cylindrical unit front end, be equipped with in the syringe chamber and draw together plug 7, its difference is to be connected by hand-operated valve between needle holder and the syringe chamber 14 and the syringe chamber is the vacuum shape, be installed on pressure tank 11 in the rear end of needle cylindrical unit, pressure tank inner chamber 12 is filled with pressed gas and is connected with syringe chamber 14 by on the other hand moving air pressure valve.
According to such scheme, during use, syringe needle is satisfied with on the needle holder, syringe needle is facing to medicinal liquid, open hand-operated valve, this moment is because the effect of vacuum makes medicinal liquid enter the syringe chamber, can finish the aspiration medicinal liquid process, enter the injection preparatory stage, when syringe needle enters the human injection, open the manual pneumatic valve, the pressed gas of pressure tank inner chamber enters syringe chamber promotion piston and moves forward gradually, promptly finishes the automatic fluid injection process.This utility model is taken out injection liquid and is only needed just to finish by opening two hand-operated valves, and this has brought convenience not only for medical worker's operation, has alleviated their manual work amount, and is convenient to them frees hand to carry out some other operation technique when injecting.This utility model once uses the back syringe can not be repeated to use again, thereby has more strict disposable result of use because piston is in the syringe intracavity of sealing.
Fig. 1 is the positive view of an embodiment of this utility model.
Further specify embodiment of the present utility model below in conjunction with accompanying drawing, include a case type needle cylindrical unit 6, the front end of needle cylindrical unit is provided with needle holder 2, needle holder can connect a fixed syringe needle 1, between needle holder and syringe chamber 14, be equipped with a hand-operated valve, hand-operated valve is by valve pocket 5, spool 4 and button 3 formations that connect firmly with spool, hand-operated valve is normally closed shape, by through hole 15 the syringe chamber is communicated with needle holder during unlatching, in the syringe chamber, be equipped with a piston 7, it in the syringe chamber vacuum shape, tail end at needle cylindrical unit is installed on a pressure tank 11, the pressure tank profile is a bit larger tham needle cylindrical unit, both are linked into one, the pressure tank inner chamber is filled with pressed gas, the pressure tank inner chamber is connected by the rear end of manual pneumatic valve with the syringe chamber, the manual pneumatic valve can be a gas-pressure adjustable valve, include spool 10, valve rod 9 and control handle 8, control the air inflow that enters the syringe chamber by the opening of regulating spool, reach control to injection speed, the manual pneumatic valve treats that the time spent is normally closed shape, opens the back and by air inlet 13 the pressure tank inner chamber is connected with the syringe chamber.
Claims (5)
1, a kind of disposable use vapour-pressure type automatic injector, has a needle cylindrical unit (6), be provided with needle holder (2) at the needle cylindrical unit front end, be equipped with piston (7) in the syringe chamber, it is characterized in that being connected by hand-operated valve between needle holder and syringe chamber (14) and the syringe chamber is the vacuum shape, be installed on pressure tank (11) in the rear end of needle cylindrical unit, pressure tank inner chamber (12) is filled with pressed gas and is connected with syringe chamber (14) by on the other hand moving air pressure valve.
2,, it is characterized in that hand-operated valve is made of valve pocket (5), spool (4) and the button (3) that connects firmly with spool by the described disposable use vapour-pressure type automatic injector of claim 1.
3, by claim 1 or 2 described disposable use vapour-pressure type automatic injectors, it is characterized in that the manual pneumatic valve is a gas-pressure adjustable valve, include spool (10), valve rod (9) and control handle (8).
4, by claim 1 or 2 described disposable use vapour-pressure type automatic injectors, it is characterized in that the pressure tank profile is a bit larger tham needle cylindrical unit, both are linked into one.
5, by claim 1 or 2 described disposable use vapour-pressure type automatic injectors, it is characterized in that needle holder connects a fixed syringe needle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98236282 CN2338019Y (en) | 1998-08-27 | 1998-08-27 | Disposable and airprssure type automatic syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98236282 CN2338019Y (en) | 1998-08-27 | 1998-08-27 | Disposable and airprssure type automatic syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338019Y true CN2338019Y (en) | 1999-09-15 |
Family
ID=33984371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98236282 Expired - Fee Related CN2338019Y (en) | 1998-08-27 | 1998-08-27 | Disposable and airprssure type automatic syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338019Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308046C (en) * | 2002-02-08 | 2007-04-04 | 株式会社费森尤斯卡比 | Liquid supply apparatus |
| CN100366306C (en) * | 2005-10-14 | 2008-02-06 | 陈庆强 | No pushing rod anti-pollution injector |
| CN101797411A (en) * | 2010-03-18 | 2010-08-11 | 傅雅芬 | Air-pressure type needleless injector power head |
| CN101623522B (en) * | 2009-04-20 | 2012-03-07 | 深圳市深科医疗器械技术开发有限公司 | Extrusion type infusion pump and infusion method |
| CN107029309A (en) * | 2017-05-17 | 2017-08-11 | 上海交通大学医学院附属第九人民医院 | A kind of injector for medical purpose and application method for facilitating drawing liquid |
-
1998
- 1998-08-27 CN CN 98236282 patent/CN2338019Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308046C (en) * | 2002-02-08 | 2007-04-04 | 株式会社费森尤斯卡比 | Liquid supply apparatus |
| US7475797B2 (en) | 2002-02-08 | 2009-01-13 | E-Wha Fresenius Kabi Inc. | Liquid supply apparatus |
| CN100366306C (en) * | 2005-10-14 | 2008-02-06 | 陈庆强 | No pushing rod anti-pollution injector |
| CN101623522B (en) * | 2009-04-20 | 2012-03-07 | 深圳市深科医疗器械技术开发有限公司 | Extrusion type infusion pump and infusion method |
| CN101797411A (en) * | 2010-03-18 | 2010-08-11 | 傅雅芬 | Air-pressure type needleless injector power head |
| CN101797411B (en) * | 2010-03-18 | 2011-12-07 | 傅雅芬 | Air-pressure type needleless injector power head |
| CN107029309A (en) * | 2017-05-17 | 2017-08-11 | 上海交通大学医学院附属第九人民医院 | A kind of injector for medical purpose and application method for facilitating drawing liquid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |