CN2173076Y - Disposable syringe - Google Patents
Disposable syringe Download PDFInfo
- Publication number
- CN2173076Y CN2173076Y CN 93230956 CN93230956U CN2173076Y CN 2173076 Y CN2173076 Y CN 2173076Y CN 93230956 CN93230956 CN 93230956 CN 93230956 U CN93230956 U CN 93230956U CN 2173076 Y CN2173076 Y CN 2173076Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle
- utility
- model
- 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 utility model relates to a disposable syringe which comprises a syringe needle, a cylinder, a piston and a push rod. The utility model is characterized in that the syringe needle is glued and fixed in a needle holder at the front end of the cylinder, and a clogging plug is arranged in a cavity of the needle holder on the cylinder; because the clogging plug is made of hydrophilic-expansion gelatin composite material, and the clogging plug expands when in contact with liquid medicine and can clog the cavity of the needle holder so that the whole syringe can not be reused and fails automatically, which avoids cross infection caused during the process of using fundamentally. The utility model has the advantages of simple structure and low cost and is suitable for hospitals of all levels.
Description
This utility model relates to a kind of medical instruments, specifically a kind of disposable syringe.
At present, disposable syringe is made up of syringe needle, needle tubing, push-and-pull piston mostly, can not scrap voluntarily after once using, and can be repeatedly used, and easily causes cross infection; But other has some to use the once disposable syringe of self-destruction, they improve on piston, for example, patent CN2061460 has announced a kind of disposable syringe, it has designed a dop at top land, designed a bayonet socket in the syringe needle chamber, it is stuck by bayonet socket to make that dop just enters bayonet socket when injection finishes, and piston can not back be twitched.This syringe construction complexity, difficult processing, cost height.
The purpose of this utility model is exactly in order to overcome the deficiency of above-mentioned disposable syringe, to provide a kind of simple in structure, and cost is low, uses and once just can scrap voluntarily, can not reusable disposable syringe.
For achieving the above object, a kind of disposable syringe, it is provided with entry needle, cylindrical shell, piston, push rod, it is characterized in that said entry needle is adhesively fixed in the barrel front end needle stand, is provided with an obstruction on the cylindrical shell in the needle stand cavity.
This utility model stops up and can manufacture with gelatin composite material, and it is hydrophilic expander, can be processed into spherosome, also can be processed into cylinder, and its diameter is less than needle stand cavity internal diameter.Disposable use, can not hinder the turnover of medicinal liquid in the certain hour, adopt hydrophilic expander owing to stop up, after disposable the finishing using, its hydrophilic expansion blocks the needle stand cavity, can not normally pass in and out medicinal liquid again, syringe is scrapped automatically, can not reuse, thereby avoid being repeatedly used the cross infection that causes.
Below in conjunction with accompanying drawing this utility model is described further:
Fig. 1 is this utility model structural representation, also is the sketch map of embodiment.
As can be seen from Figure 1, a kind of disposable syringe, it is provided with entry needle 1, cylindrical shell 2, piston 3, push rod 4, piston 3, push rod 4 are identical with existing syringe construction, and this does not give unnecessary details.Cylindrical shell 2 front ends are provided with a needle stand 5, this utility model entry needle 1 directly is adhesively fixed in the needle stand 5 of cylindrical shell 2 front ends, can not arbitrarily assign and dial down, whole syringe is an integral body, is provided with a needle stand cavity 6 in the needle stand 5, a spheroidal is housed in the needle stand cavity 6 stops up 7, it is processed by gelatin composite material, diameter is slightly less than the internal diameter of needle stand cavity 6, but it runs into hydrophilic expansion behind the medicinal liquid, can block needle stand cavity 6.Also be provided with some ribs in the needle stand cavity 6, spheroidal is stopped up 7 and is stuck in wherein, and medicinal liquid passes in and out from the slit, edge, stops up 7 not with the turnover activity of medicinal liquid.Like this, when this utility model uses, within a certain period of time, stop up 7 can the overslaugh medicinal liquid entering and injecting, but after disposable injection finishes, stop up 7 and expand, needle stand cavity 6 is blocked, can not enter medicinal liquid again, syringe is scrapped automatically, can not reuse, reach the nonrecoverable purpose of disposable syringe, avoid cross infection.
This utility model is simple in structure, and cost is low, can not reuse, and is suitable for hospitals at different levels and uses.
Claims (3)
1, a kind of disposable syringe, it is provided with entry needle, cylindrical shell, piston, push rod, it is characterized in that said entry needle is adhesively fixed in the barrel front end needle stand, is provided with an obstruction on the cylindrical shell in the needle stand cavity.
2, disposable syringe as claimed in claim 1 is characterized in that said obstruction is the spheroplast by gelatin composite material processing.
3, disposable syringe as claimed in claim 1 is characterized in that being provided with some ribs in the said needle stand cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93230956 CN2173076Y (en) | 1993-05-13 | 1993-05-13 | Disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93230956 CN2173076Y (en) | 1993-05-13 | 1993-05-13 | Disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2173076Y true CN2173076Y (en) | 1994-08-03 |
Family
ID=33807501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93230956 Expired - Fee Related CN2173076Y (en) | 1993-05-13 | 1993-05-13 | Disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2173076Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593716A (en) * | 2019-09-12 | 2019-12-20 | 罗正书 | Rain-proof device of window |
-
1993
- 1993-05-13 CN CN 93230956 patent/CN2173076Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593716A (en) * | 2019-09-12 | 2019-12-20 | 罗正书 | Rain-proof device of window |
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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 |