CN101480508A - Suction and injection device - Google Patents
Suction and injection device Download PDFInfo
- Publication number
- CN101480508A CN101480508A CNA2008100138302A CN200810013830A CN101480508A CN 101480508 A CN101480508 A CN 101480508A CN A2008100138302 A CNA2008100138302 A CN A2008100138302A CN 200810013830 A CN200810013830 A CN 200810013830A CN 101480508 A CN101480508 A CN 101480508A
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- Prior art keywords
- cylinder body
- air cylinder
- piston
- absorbing
- inner cavity
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides an absorbing and injecting device which belongs to a medical instrument. The absorbing and injecting device comprises a cylinder body. A piston inside the cylinder body and the front end of a push-and-pull rod are mounted together; an air cylinder body is also arranged in the axial direction of the cylinder body; a needle stand is mounted on a bulge at the front end of the cylinder body; a division sheet is arranged in a needle head on the needle stand; inner cavities at two sides of the division sheet are respectively communicated with the inner cavity of the cylinder body in front of the piston and the inner cavity of the air cylinder body; and the inner cavity of the air cylinder body is also communicated with the inner cavity of the cylinder body behind the piston. Due to the existence of the air cylinder body, air can enter or be discharged during the liquor absorbing and injecting process of the absorbing and injecting device, and negative pressure can not be generated or the pressure in the bottle can not be increased; the absorption and the injection are convenient; labors are saved; the absorption and the injection speeds are quick; and the basic structure of the prior injector can be fully utilized. The invention has the advantages of simple structure, low production cost and convenient and quick use.
Description
Technical field
The invention provides a kind of medical instruments, the dosing apparatus during especially a kind of the injection.
Background technology
At present, when injecting, people adopt disposable syringe to finish usually liquid medicine is sucked syringe (suction medicine) from the medicine bottles of sealing, the more liquid medicine in the syringe are injected the operation of (injection) in the medicine bottle of another sealing.When inhaling medicine, the Jiao Gai that the syringe needle of disposable syringe is passed the medicine bottle bottleneck aspirates, and can make after medicinal liquid is sucked out to produce a negative pressure in the bottle, makes extraction difficult, and operation effort and pumping velocity are slower; During injection, also be that the Jiao Gai that syringe needle passes bottleneck is injected, the medicine of injection can occupy a bottle interior space, and pressure of the inside of a bottle is increased, and injects resistance and increases thereupon.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of suction and injection device, the portability during with the suction of raising medicinal liquid, notes.
The present invention realizes like this, a kind of suction and injection device, it has cylindrical shell, there is the front end of piston and push-pull bar to be installed together in the cylindrical shell, upwards also have air cylinder in drum shaft, on the front end projection of cylindrical shell needle stand is installed, in the syringe needle on the needle stand shim is arranged, the inner chamber of shim both sides communicates with cylinder lumen, the air cylinder inner chamber of piston front respectively, and the air cylinder inner chamber also communicates with the cylinder lumen of piston back.
Adopt the suction and injection device of said structure, because the existence of air cylinder is arranged, when inhaling medicine, injection, air can enter or discharge, can not produce negative pressure or pressure of the inside of a bottle is increased, inhale, annotate light, laborsaving, inhale, notes speed is fast, can make full use of the basic structure of conventional injector, simple in structure, production cost is low, and is convenient to use.
Description of drawings
Fig. 1 is the sketch map of structure of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the profile that another kind of air cylinder of the present invention position is provided with.
The specific embodiment
The embodiment that provides below in conjunction with accompanying drawing further specifies concrete structure of the present invention and using method.
As shown in drawings, a kind of suction and injection device of the present invention, it has cylindrical shell 4, there are the piston 5 and the front end of push-pull bar 2 to be installed together in the cylindrical shell, upwards also have air cylinder 6 in drum shaft, on the front end projection 8 of cylindrical shell needle stand 9 is installed, in the syringe needle 11 on the needle stand shim 10 is arranged, the inner chamber of shim both sides communicates with cylinder lumen 12, the air cylinder inner chamber 7 of piston front respectively, and air cylinder inner chamber 7 also communicates with the cylinder lumen of piston back.
In the rear end of described push-pull bar 2 handle 1 is arranged.Be convenient to the push-and-pull of push-pull bar like this.
Alleged " preceding ", " back " is to use the situation under the user mode to narrate according to it among the present invention.Under the user mode, syringe needle is positioned at the foremost of this suction and injection device.
Stationarity when using for improving, can there be mounting 13 rear end of cylindrical shell 4, between mounting and the push-pull bar lasso 3 can be arranged.Like this, in the suction of medicinal liquid, notes process, medicinal liquid does not exchange with the cylindrical shell outside air, thereby reduces medicinal liquid by the outside air contamination of heavy, operation safe.
The head end of syringe needle can have two inclined-planes, so that pass the Jiao Gai of medicine bottle bottleneck.
Obviously, the structure that adapts with band shim syringe needle should be arranged on the front end projection 8 of cylindrical shell, the needle stand, communicate with cylinder lumen, the air cylinder inner chamber of piston front respectively with the inner chamber of realizing the shim both sides.The concrete form of this structure can have multiple, and this is conspicuous to those skilled in the art.
Air cylinder is positioned on the periphery of cylindrical shell, and air cylinder and cylindrical shell can be integral.Air cylinder both can be arranged at the outside of cylindrical shell, also can be arranged at the inboard of cylindrical shell as shown in Figure 3.When air cylinder was positioned at the cylindrical shell inboard, the outer rim shape of piston should be changed into corresponding shape with it.
The using method of this suction and injection device is identical with existing method when inhaling medicine, injection with disposable syringe.When promptly inhaling medicine syringe needle is passed the Jiao Gai of medicine bottle bottleneck, syringe needle is inserted in the medicinal liquid, outwards spur piston by push-pull bar, the inner chamber of shim one side that medicinal liquid will be in syringe needle enters in the cylinder lumen of piston front.Meanwhile, the air in the cylinder lumen of piston back can be through the air cylinder inner chamber, discharges from the inner chamber of the shim opposite side of syringe needle, enters in the medicine bottle, has avoided the appearance of negative pressure.Equally, when inhaling behind the medicine in the medicine bottle of another sealing injection, promote piston forward, the inner chamber of shim one side that the medicinal liquid in the cylinder lumen of piston front will be in syringe needle enters in the medicine bottle again.Meanwhile, the air in the medicine bottle can be through the air cylinder inner chamber, enters in the cylinder lumen of piston back from the inner chamber of the shim opposite side of syringe needle, and the pressure in the medicine bottle can not increase.
Claims (2)
1, a kind of suction and injection device, it is characterized in that, it has cylindrical shell (4), there are the piston (5) and the front end of push-pull bar (2) to be installed together in the cylindrical shell, upwards also have air cylinder (6) in drum shaft, on the front end projection (8) of cylindrical shell needle stand (9) is installed, shim (10) is arranged in the syringe needle on the needle stand (11), the inner chamber of shim both sides communicates with cylinder lumen (12), the air cylinder inner chamber (7) of piston front respectively, and air cylinder inner chamber (7) also communicates with the cylinder lumen of piston back.
2, suction and injection device as claimed in claim 1 is characterized in that, in the rear end of described push-pull bar (2) handle (1) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100138302A CN101480508B (en) | 2008-01-11 | 2008-01-11 | Suction and injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100138302A CN101480508B (en) | 2008-01-11 | 2008-01-11 | Suction and injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101480508A true CN101480508A (en) | 2009-07-15 |
| CN101480508B CN101480508B (en) | 2012-07-18 |
Family
ID=40877894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100138302A Expired - Fee Related CN101480508B (en) | 2008-01-11 | 2008-01-11 | Suction and injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101480508B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458853A (en) * | 2011-03-31 | 2013-12-18 | 松下电器产业株式会社 | Drug infusion needle and drug infusion method |
| CN104099979A (en) * | 2014-08-07 | 2014-10-15 | 徐可澍 | Pipe cleaner |
| CN106983666A (en) * | 2017-04-01 | 2017-07-28 | 深圳市卫邦科技有限公司 | Cillin bottle fluid injection control method and device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5704921A (en) * | 1995-05-17 | 1998-01-06 | Carilli; Brian D. | Prefilled hypodermic syringe system |
| CN2309844Y (en) * | 1997-06-03 | 1999-03-10 | 王坤山 | Puncture needle without hole on tip |
| CN2513575Y (en) * | 2001-10-12 | 2002-10-02 | 王维文 | Medicine adder for injection |
| US8152762B2 (en) * | 2006-04-20 | 2012-04-10 | Safeshot Technologies, Llc | Plunger activated vacuum release mechanism for a syringe |
| CN201161015Y (en) * | 2008-01-11 | 2008-12-10 | 高广庭 | Suction and injection device |
-
2008
- 2008-01-11 CN CN2008100138302A patent/CN101480508B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103458853A (en) * | 2011-03-31 | 2013-12-18 | 松下电器产业株式会社 | Drug infusion needle and drug infusion method |
| US9254243B2 (en) | 2011-03-31 | 2016-02-09 | Panasonic Corporation | Drug transferring needle and drug transferring method |
| CN104099979A (en) * | 2014-08-07 | 2014-10-15 | 徐可澍 | Pipe cleaner |
| CN106983666A (en) * | 2017-04-01 | 2017-07-28 | 深圳市卫邦科技有限公司 | Cillin bottle fluid injection control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101480508B (en) | 2012-07-18 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20130111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |