CN2780218Y - Safety self locking needle of disposable injector - Google Patents
Safety self locking needle of disposable injector Download PDFInfo
- Publication number
- CN2780218Y CN2780218Y CN 200420054831 CN200420054831U CN2780218Y CN 2780218 Y CN2780218 Y CN 2780218Y CN 200420054831 CN200420054831 CN 200420054831 CN 200420054831 U CN200420054831 U CN 200420054831U CN 2780218 Y CN2780218 Y CN 2780218Y
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- CN
- China
- Prior art keywords
- syringe
- syringe needle
- needle
- needle head
- safety
- 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 discloses a safety self locking needle head for a disposable injector. The injector is mainly composed of a needle head (1) and a needle cylinder (2) which are connected to form a whole, wherein the needle cylinder (2) comprises a cylinder body (8) and a piston (9). The utility model is characterized in that the tail of the needle head (1) is connected with an annular concavely retracted jack (3), the front end of the cylinder body (8) is connected with a push-pull type convex head (4) which is connected with the annular concavely retracted jack (3) in an inserting way, and the tail of the needle head is connected with a telescopic safety sleeve (6). The utility model has the advantage of reasonable structure, convenient operation, self locking and integration, realizes one-time use, ensures the sanitation and the safety when waste injectors are treated, thoroughly avoids the secondary pollution and the recovery of the injectors, and ensures the safety of medical health. The telescopic safety sleeve at the outer part of the needle head enables the needle head not to be outside exposed to injure people.
Description
Affiliated technical field
This utility model relates to medical apparatus and instruments, is specifically related to the safe self-locking formula syringe needle of disposable syringe.
Background technology
At present, syringe uses the generation of back for fear of unhygienic dangerous phenomenons such as cross-contaminations, needs artificial breaking-up just can stop to recycle, and working strength is big.
Summary of the invention
The purpose of this utility model is: a kind of safe self-locking formula syringe needle of disposable syringe is provided, and syringe needle and syringe locking, syringe needle does not expose, and guarantees safe and sanitary when syringe is discarded in processing, avoids secondary pollution to use, and guarantees health care safety.
Technical solution of the present utility model is: this syringe mainly is made up of syringe needle, syringe, syringe comprises cylindrical shell and piston, it is characterized in that: the syringe needle afterbody connects the recessed socket that contracts of annular, and barrel front end connects to push away pulls out the formula plush copper, and annular recessed reducing is pulled out formula plush copper plug-in type and joined with pushing away; The syringe needle afterbody connects flexible condom.
During injection, the condom that will stretch is depressed into syringe needle afterbody location, pushing away of barrel front end pulled out in the annular recessed socket that contracts of formula plush copper insertion syringe needle afterbody, pushing away swollen voluntarily the opening by the annular recessed socket that contracts of syringe needle afterbody of the formula plush copper of pulling out locks, cannot pull out back once more, syringe needle, syringe are locked mutually form an integral body, whole syringe can not be reused once more.After injection finished, the flexible condom pull-up that the syringe needle afterbody is connected restored to the original state, and guaranteed that syringe needle does not expose to hurt sb.'s feelings.
This utility model is rational in infrastructure, easy to operate, the self-locking disjunctor, realize disposable use, simultaneously, the telescopic condom of syringe needle outside can not expose syringe needle and hurts sb.'s feelings, and guarantees safe and sanitary when syringe is discarded in processing, thoroughly avoid the syringe secondary pollution to reclaim, ensured the safety of health care.
Description of drawings
Fig. 1 is this utility model structural representation
Fig. 2 is the needle head structure sketch map of Fig. 1
Fig. 3 is another structural representation of syringe needle of Fig. 1
Fig. 4 is the tube structure sketch map of Fig. 1
Fig. 5 is the sketch map of finishing using of Fig. 1
Among the figure: 1 syringe needle, 2 syringes, the 3 annular recessed sockets that contract, 4 push away and pull out formula plush copper, 5 safety helmets, 6 flexible condoms, 7 spiral interfaces, 8 cylindrical shells, 9 pistons
The specific embodiment
Shown in Fig. 1,2,4, this syringe mainly connects to form integral body by syringe needle 1, syringe 2, syringe 2 includes cylindrical shell 8 and piston 9, it is characterized in that: the afterbody at syringe needle 1 connects the recessed socket 3 that contracts of annular, the front end connection of cylindrical shell 8 pushes away pulls out formula plush copper 4, pushes away to pull out the recessed socket 3 that contracts of formula plush copper 4 plug-in types connection annular.
As shown in Figure 3, connect flexible condom 6 at syringe needle 1 afterbody, flexible condom 6 front ends are established safety helmet 5, establish the spiral interface 7 of the locking that cooperatively interacts on the body front and back end of flexible condom 6.
During injection, pushing away of barrel front end pulled out in the annular recessed socket 3 that contracts that formula plush copper 4 inserts the syringe needle afterbodys, push away and pull out swollen voluntarily the opening by the annular recessed socket 3 that contracts of syringe needle afterbody of formula plush copper 4 and tightly pin, syringe needle cannot pull out back once more; Then, the safety helmet 5 on the flexible condom 6 is removed, the condom 6 that will stretch is depressed into the syringe needle afterbody and screws spiral interface 7 lockings; After injection finished, the condom pull-up of will stretching restored to the original state, and put on a safety helmet, and as shown in Figure 5, guaranteed that syringe needle does not expose to hurt sb.'s feelings.
This utility model is applicable to human injection, medical treatment experiment, livestock injection.The syringe of organic compound material casting all sizes such as available rustless steel, plastics, resin.
Claims (4)
1. the safe self-locking formula syringe needle of disposable syringe, this syringe is mainly connected to form by syringe needle (1), syringe (2), syringe (2) comprises cylindrical shell (8) and piston (9), it is characterized in that: the afterbody at syringe needle (1) connects the annular recessed socket that contracts (3), the front end connection of cylindrical shell (8) pushes away pulls out formula plush copper (4), pushes away to pull out formula plush copper (4) the plug-in type connection annular recessed socket that contracts (3).
2. the safe self-locking formula syringe needle of disposable syringe according to claim 1 is characterized in that: the flexible condom (6) of syringe needle (1) afterbody connection.
3. the safe self-locking formula syringe needle of disposable syringe according to claim 2 is characterized in that: the front end of flexible condom (6) is established safety helmet (5).
4. the safe self-locking formula syringe needle of disposable syringe according to claim 2 is characterized in that: the spiral interface (7) of establishing the locking that cooperatively interacts on the external member front and back end of flexible condom (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054831 CN2780218Y (en) | 2004-12-28 | 2004-12-28 | Safety self locking needle of disposable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054831 CN2780218Y (en) | 2004-12-28 | 2004-12-28 | Safety self locking needle of disposable injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780218Y true CN2780218Y (en) | 2006-05-17 |
Family
ID=36761416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054831 Expired - Fee Related CN2780218Y (en) | 2004-12-28 | 2004-12-28 | Safety self locking needle of disposable injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780218Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536111A (en) * | 2011-04-28 | 2016-05-04 | 赛诺菲-安万特德国有限公司 | Dispense interface with lockout element |
-
2004
- 2004-12-28 CN CN 200420054831 patent/CN2780218Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536111A (en) * | 2011-04-28 | 2016-05-04 | 赛诺菲-安万特德国有限公司 | Dispense interface with lockout element |
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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 |