CN2892123Y - Multibreaking type low resistance disposable injector - Google Patents
Multibreaking type low resistance disposable injector Download PDFInfo
- Publication number
- CN2892123Y CN2892123Y CN 200520013292 CN200520013292U CN2892123Y CN 2892123 Y CN2892123 Y CN 2892123Y CN 200520013292 CN200520013292 CN 200520013292 CN 200520013292 U CN200520013292 U CN 200520013292U CN 2892123 Y CN2892123 Y CN 2892123Y
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- CN
- China
- Prior art keywords
- self
- push rod
- sealing ring
- ruin
- disposable syringe
- 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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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The ordinary disposable injector can be used again, which leads to cross infection and diseases spreading. And the self-destroying injector put into operation is of complicated structure, single function and high price. The utility model is a disposable injector of simple structure, low cost, various self-destroying functions and low resistance, which ensures disposable use and is designed to solve the above mentioned situation. The injector consists of three parts of needle tube (1), push rod (2) and piston (3). Each part has its self-destroying device and performs self-destroying function during use. The needle tube (1) has a needle (9) at the top. A locking ring (10) is at the end. The push rod (2) has elastic barb (5) and safety device (4) at the end preventing self-destroying due to misoperation. The piston (3) has special three-layer leather cup structure for keeping sealing performance and low resistance.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly a kind of disposable syringe with back active, many-sided lower resistance of destroying.
Background technology
The disposable syringe of medical syringe from the glass syringe to plastics crossed over major step, from the glass syringe of high-temperature sterilization repeatedly to disposable plastic injector, all since with after all need go artificially to disinfect or destroy, so produced with interests driven with common disposable syringe with after do not destroy, through the situation that comes into operation once more after the simple process packing, cause pathogen transmission, cross infection, some junkie also repeated multiple times use syringe or use syringe mutually, have caused hemopathicly rolling up and spreading unchecked.In order only to make this bad habit, the central government repeats injunctions, the science, education, culture and hygiene of the United Nations organizes and all requires the national disposable syringe that uses " really " in various countries in the world, certainly, can reach not following tens kinds of disposable syringe, but fail to promote from present existing technical merit, can not widely accepted reason nothing more than being that structure is complicated, production cost is higher, because economic problems, so be not easy to popularize and development.
Summary of the invention
Technical problem to be solved in the utility model, provide a kind of simple in structure, and can only be expendable formula lower resistance disposable syringes of ruining more.
In order to solve the technical problem of said syringe, this utility model by the following technical solutions, ruin the formula disposable syringe more, comprise the push rod (2) of simplified (1) and push-and-pull in cylindrical shell and be enclosed within the sealing ring (3) that push rod comes directly towards, sealing ring (3) is less with cylindrical shell (1) maintenance sealing and resistance, the afterbody of push rod (2) is provided with elasticity agnail (5) and safety plate (4), and the pintle root of cylindrical shell (1) is provided with frangible means (6) and is provided with anti-lock ring (10) of pulling back at cylindrical shell (1) afterbody.After adopting so multiple self-desttruction equipment structure, after finishing injection, push rod (2) can not be pulled back again, sealing ring (3) top thin-walled is pierced, if want secondary use, just aspiration medicinal liquid again considers that the pintle point is on pin, cause easily during processing and accidentally injure other people, so after this utility model injector to inject is intact, need only a user folding gently, needle point, syringe are beheaded at once, destroy by this two～treble self-action, want to utilize again once probability completely without.
This utility model also can adopt following further technical scheme, described sealing ring (3) is made positive and negative two-way leather cup shape structure, first road forward cup packing circle (3-1) is towards the injection direction warp architecture, inverted cup sealing ring (3-2) is towards the back-flexing structure, two roads inverted cup sealing ring (3-3) have the back-flexing structure equally, forward cup packing circle (3-1), inverted cup sealing ring (3-3) contacts with the inboard formation of cylindrical shell (1) line-face, because contact surface is little, guaranteed lower resistance, again because piston adopts leather cup columnar structure, when coming to syringe internal liquid pressure, with the pressure size variation, forward cup packing circle (3-1) pressurized and rise big or alleviate has increased sealing property, or has in time reduced resistance again.Forward cup packing circle (3-1), inverted cup sealing ring (3-3) sealing are directly proportional with fluid pressure in the syringe, described with inverted cup sealing ring (3-3) be designed to opposite with forward cup packing circle (3-1) to the leather cup structure, when the syringe imbibition, inverted cup sealing ring (3-3) plays sealing function, makes to produce negative pressure in the syringe and suck medicinal liquid.In order to reduce resistance, so be designed to the inverted cup shape, inverted cup sealing ring (3-3) contacts with the inboard formation of cylindrical shell (1) line-face, has guaranteed the lower resistance and the sealing property of syringe.
This utility model can adopt following further technical scheme, the described anti-locking system (10) of pulling back is made up of elasticity agnail (5) and the lock ring (10) of 2-4, after the medicinal liquid in the syringe has all pushed away, elasticity agnail (5) has entered the lockup state of lock ring (10) in the push rod (2), push rod (2) is stuck and can not pulls back, and can not extract medicinal liquid once more.
This utility model also can adopt following further technical scheme, described self-desttruction equipment is made up of the piercing needle (9) of middle hollow and the sealing ring (3) and the needle tubing (8) that are provided with thin-walled, centre bore on push rod (2) needle tubing (8) and push-rod piston rear end UNICOM, be provided with non-garden shape liquid conductance at the center of piercing needle, during use with the push rod forward impelling, piercing needle (9) punctures sealing ring (3) top thin-walled gradually, but piston this moment (3) is also keeping sealing.If when thinking to use for the second time, because sealing ring (3) top thin-walled is broken, the air UNICOM on needle tubing (8) centre bore and the push rod can not produce negative pressure in the cylindrical shell at this moment, so aspiration medicinal liquid, injection liquid equally more again.
This utility model also can adopt following further technical scheme, described self-desttruction equipment is made of the frangible means (6) of pintle root, after syringe uses up, as long as the end user is gently once tiltedly pressing first two places of body, facilitate different materials collection and processing respectively like this, make the cylindrical shell (1) fully can not reuse, reach disposable application target.
This utility model also can adopt following further technical scheme, described safety are made of safety plate (4), safety plate (4) is connected by some with push rod, when not extracing safety plate, push rod (2) can not be shifted syringe bottom onto, guarantees promptly that sealing ring (3) is not punctured with elasticity agnail (5) not enter lock ring (10), when normal use, extract safety plate (4), just can use smoothly.
Description of drawings
Fig. 1; Ruin formula lower resistance disposable syringe structural representation more.
Fig. 2; Ruin the local enlarged diagram of formula lower resistance disposable syringe more.
Specific embodiment
As shown in Figure 1, when bringing into use syringe, at first extract safety plate (4), aspiration medicinal liquid then, air in the sky emptying medicinal liquid, enter the start injection state, when injection finished soon, piercing needle (9) was run into sealing ring (3) top thin-walled, when continuing to advance again, sealing ring (3) is though be punctured gradually, and sealing ring this moment (3) is also keeping and piercing needle (9) sealing, so guarantee that medicinal liquid is not leaked, when being advanced to the end, elasticity agnail (5) on the push rod (2) is locked in the lock ring (10), and push rod (2) can not be pulled back, for insurance more, use the back to press needle section with have gentle hands, make it separately, guaranteed that like this three parts of syringe are all damaged and can not be repeated repeatedly to use again, reached the purpose of real " disposable " in the fracture of pintle root.
This utility model is simple in structure, does not use the difference sensation fully, and resistance is extremely low again, and the self-desttruction equipment of multi-functional all can be used singly or in combination.When using two or more self-destroying functions simultaneously, syringe can only increase by disposable safety factor greatly, because it is good and cheap, safety factor is high again, and cost performance is relatively good, and extensive adopted situation will point the day and await for it.
Claims (6)
1, ruin formula lower resistance disposable syringe more; The sealing ring (3) that comprises cylindrical shell (1) and push rod (2) and be enclosed within on push rod (2) top is formed, and it is characterized in that; Thin-walled and positive and negative leather cup shape piston structure are arranged at described sealing ring (3) top, described cylindrical shell (1) afterbody is provided with lock ring (10) and the pintle root is provided with self-desttruction equipment easy to break (6) and is provided with puncture needle (9) at the cylindrical shell inner top, described push rod (2) is provided with anti-pull back self-desttruction equipment and safety (4) and needle tubing (8), forms the disposable syringe with multiple self-destroying function.
2, as claimed in claim 1ly ruin formula lower resistance disposable syringe more, it is characterized in that; Described sealing ring (3) is by three special constructional devices; Forward cup packing circle (3-1), inverted cup sealing ring (3-2), inverted cup sealing ring (3-3) is formed, and the inboard formation of sealing ring (3) and cylindrical shell (1) line one side is combined, and have directivity.
3, as claimed in claim 1ly ruin formula lower resistance disposable syringe more, it is characterized in that; The described anti-self-desttruction equipment of pulling back is made up of afterbody elasticity agnail (5) that is arranged on push rod (2) and lock ring (10).
4, as claimed in claim 1ly ruin formula lower resistance disposable syringe more, it is characterized in that; Described puncture needle (9) and needle tubing (8) and sealing ring (3) top thin-walled are formed self-desttruction equipment, puncture needle (9) is arranged on cylindrical shell (1) inner top central authorities, and a non-circular conductance is set in the centre, needle tubing (8) is embedded in the sealing ring (3), and needle tubing (8) centre bore is communicated with air duct on the push rod (2).
5, as claimed in claim 1ly ruin formula lower resistance disposable syringe more, it is characterized in that; Described self-desttruction equipment easy to break is to be provided with constructional device easy to break (6) at syringe needle post bolt root.
6, as claimed in claim 1ly ruin formula lower resistance disposable syringe more, it is characterized in that; Push rod (2) is provided with the safety (4) of easy removal at the rear portion, safety (4) and push rod (2) are to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013292 CN2892123Y (en) | 2005-07-18 | 2005-07-18 | Multibreaking type low resistance disposable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520013292 CN2892123Y (en) | 2005-07-18 | 2005-07-18 | Multibreaking type low resistance disposable injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2892123Y true CN2892123Y (en) | 2007-04-25 |
Family
ID=38060289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520013292 Expired - Fee Related CN2892123Y (en) | 2005-07-18 | 2005-07-18 | Multibreaking type low resistance disposable injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2892123Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
-
2005
- 2005-07-18 CN CN 200520013292 patent/CN2892123Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107485766A (en) * | 2017-09-20 | 2017-12-19 | 安徽名之工业设计有限公司 | A kind of disposable syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20070425 Termination date: 20110718 |