CN2141714Y - Disposable inflated syringe - Google Patents
Disposable inflated syringe Download PDFInfo
- Publication number
- CN2141714Y CN2141714Y CN 92241785 CN92241785U CN2141714Y CN 2141714 Y CN2141714 Y CN 2141714Y CN 92241785 CN92241785 CN 92241785 CN 92241785 U CN92241785 U CN 92241785U CN 2141714 Y CN2141714 Y CN 2141714Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- piston rod
- inflation
- piston head
- pin
- 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
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable inflated syringe which is composed of a syringe tube 3, a piston rod 5, an air leakage needle 2 which is arranged on the inner wall of the end of the syringe tube 3, and an inflated piston head 1 which is arranged on the top of the piston rod 5. After the injection, the inflated piston head 1 is punctured by the air leakage needle 2, the sealed piston rod 5 is disconnected with the sealed syringe tube 3, and the possibility of repeated use is eliminated.
Description
This utility model relates to medical apparatus and instruments, relates to a kind of disposable syringe more precisely.
Being seen disposable syringe in the market, it only is the replacement of material and structurally there is no and effectively prevent reusable design, seek loopholes to the lawless person easily, the syringe that is about to scrap is collected, packing, relaunch, bring the danger of potential cross infection for thousands of patients.Disclose in China's utility application numbers 91217886.8 and a kind ofly can use up the automatic destructive disposable syringe in back, this disposable syringe is equipped with draw point at the inner tube head, and outer tube bottom is punctured pore-forming and makes outer tube gas leakage and can not reuse when having injected.Automatic destructive degree after the deficiency that this disposable syringe exists is to use is not high, and will make the attenuate place of the saturating outer tube of rustless steel acupuncture bottom still need suitable strength during injection.
The purpose of this utility model be to provide a kind of use back destructiveness height, promptly fully can not be multiplexing after structurally guaranteeing to use novel disposable syringe.
The purpose of this utility model is to realize like this; the structure plastic injector comprises and pushes away liquid piston rod 5; syringe 3; this disposable syringe is characterised in that the end inwall of syringe 3 is provided with the pin 2 that loses heart; the inflation piston head 1 of its external diameter greater than the piston rod external diameter is housed at the top of piston rod 5; afterbody at piston rod 5 is provided with removable neonychium 4; not being deflated pin 2 in order to protection inflation piston head 1 when not using punctures; during use; draw piston rod 5 to suck injection earlier; tear neonychium 4 again; push piston bar 5 is discharged air in the syringe 3 again; but just start injection; along with piston rod 5 moving to syringe 3 ends; puncture inflation piston head 1 by the disappointing pin 2 that is located at the top, piston rod 5 can't be formed with syringe 3 be sealed and matched and disconnected from each other, thereby guarantee that structurally this syringe fully can not be multiplexing after use.Because the external diameter of piston head 1 is greater than the external diameter of piston rod 5, so air is discharged automatically from front to back in the syringe 3, so got rid of the probability of air injection human body.
Advantages such as that inflated type disposable syringe of the present utility model has is simple in structure, produce easily and production cost is low can prevent from well to be sought loopholes by the lawless person and cause injury to the patient.
With reference to accompanying drawing, the embodiment of inflated type disposable syringe of the present utility model is described as follows.
With reference to Fig. 1; disposable syringe of the present utility model comprises syringe 3, the piston rod 5 that plastics are made; be provided with the pin 2 that loses heart at syringe 3 end inwalls; inflation piston head 1 is housed at the top of piston rod 5; afterbody at piston rod 5 is pasted with neonychium 4; neonychium 4 can be made with the little scraps of paper or plastic sheet, and it is broken that its paste position should guarantee that when not using inflation piston head 1 is not deflated acupuncture.When using at the end, piston head 1 is in inflated condition, the piston rod 5 that makes its external diameter be slightly less than syringe 3 internal diameters is in the state of being sealed and matched with syringe 3, piston rod 5 promotes inflation piston heads 1 and proceeds to syringe 3 tops and be deflated pin 2 and puncture during injection, and syringe 3 and piston rod 5 just lose and be sealed and matched and disconnected from each other like this.
Claims (2)
1, a kind of syringe comprises syringe 3, piston rod 5, it is characterized in that, the end inwall of described syringe 3 is provided with the pin 2 that loses heart, be equipped with inflation piston head 1 at the top of described piston rod 5, the external diameter of described piston rod 5 is less than described syringe 3 internal diameters one determining deviation, and described inflation piston head 1 its external diameter when inflation makes greater than described syringe 3 internal diameters and keeps each other being sealed and matched, and punctured and make syringe 3 and piston rod 5 disengagings by described disappointing pin 2 when the inflation piston head 1 at piston rod 5 tops injection finishes after.
2, syringe according to claim 1 is characterized in that, the afterbody of described piston rod 5 is pasted with the neonychium of being made by the little scraps of paper or plastic sheet that can tear off, is used for when not using protection inflation piston head 1 and is not deflated pin 2 and punctures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241785 CN2141714Y (en) | 1992-11-16 | 1992-11-16 | Disposable inflated syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92241785 CN2141714Y (en) | 1992-11-16 | 1992-11-16 | Disposable inflated syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2141714Y true CN2141714Y (en) | 1993-09-08 |
Family
ID=33781764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92241785 Expired - Fee Related CN2141714Y (en) | 1992-11-16 | 1992-11-16 | Disposable inflated syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2141714Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114796724A (en) * | 2022-03-24 | 2022-07-29 | 舒顺 | Standard syringe needle tube separator |
-
1992
- 1992-11-16 CN CN 92241785 patent/CN2141714Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114796724A (en) * | 2022-03-24 | 2022-07-29 | 舒顺 | Standard syringe needle tube separator |
| CN114796724B (en) * | 2022-03-24 | 2023-12-22 | 丰都县精神病医院(丰都县精神卫生中心) | Needle tube separating device of standard injector |
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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 |