CN2780219Y - Auto locking type disposable injector - Google Patents
Auto locking type disposable injector Download PDFInfo
- Publication number
- CN2780219Y CN2780219Y CN 200420054832 CN200420054832U CN2780219Y CN 2780219 Y CN2780219 Y CN 2780219Y CN 200420054832 CN200420054832 CN 200420054832 CN 200420054832 U CN200420054832 U CN 200420054832U CN 2780219 Y CN2780219 Y CN 2780219Y
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- CN
- China
- Prior art keywords
- afterbody
- connects
- tail
- syringe
- self
- 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 self-locking type disposable injector which 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 (3) and a piston (4). The utility model is characterized in that the tail of the needle head (1) is connected with an annular concavely retracted jack (5), the front end of the cylinder body (3) is connected with a push-pull type convex head (4) which is connected with the annular concavely retracted jack (5) at the tail of the needle head in an inserting way, the tail of the cylinder body (3) is connected with a groove type ring hoop (7), and the tail of the piston (4) is connected with a push-pull type convex tail (9) which is connected with the groove type ring hoop at the tail of the cylinder body in an inserting way. The utility model has the advantage of reasonable structure, low cost, convenient operation, self locking and integration, thoroughly avoids the secondary pollution use of the injector and ensures the safety of medical health.
Description
Affiliated technical field
This utility model relates to medical apparatus and instruments, is specifically related to self-locking disposable injector.
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 self-locking disposable injector is provided, and the whole locking of syringe avoids secondary pollution to use, and guarantees health care safety.
Technical solution of the present utility model is: this syringe is mainly connected to form by syringe needle, syringe, syringe includes cylindrical shell and piston, it is characterized in that: the afterbody of syringe needle connects the recessed socket that contracts of annular, barrel front end connects to push away pulls out the formula plush copper, and the recessed socket that contracts of formula plush copper plug-in type connection syringe needle afterbody annular is pulled out in pushing away of barrel front end; The cylindrical shell afterbody connects concave groove hoop, and piston tail connects pulling type convex tail, and the pulling type convex tail plug-in type of piston tail connects the concave groove hoop of cylindrical shell afterbody.
During injection, 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 recessed socket locking of contracting of syringe needle afterbody annular of the formula plush copper of pulling out cannot pull out back once more; Then, equal power extrusion piston in cylindrical shell, when liquid medicine has been beaten, the pulling type convex tail of piston tail just in time is extruded in the concave groove hoop of cylindrical shell afterbody, pulling type convex tail is swollen voluntarily to be opened by cylindrical shell afterbody concave groove hoop or tightly pinning, cylindrical shell and piston form one, and piston cannot pull out back once more; Syringe needle and cylindrical shell, cylindrical shell and piston lock mutually and form integral body, and whole syringe can not be reused once more.
This utility model is rational in infrastructure, and is easy to operate, and the self-locking disjunctor is realized disposable use, thoroughly avoids the syringe secondary pollution to reclaim, and guaranteed 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 syringe cylinder structure sketch map of Fig. 1
Fig. 5 is the piston structure sketch map of Fig. 1
Fig. 6 is the sketch map of finishing using of Fig. 1
Among the figure: 1 syringe needle, 2 syringes, 3 cylindrical shells, 4 pistons, the 5 annular recessed sockets that contract, 6 push away and pull out formula plush copper, 7 concave groove hoops, 8 groove type ear pushings, 9 pulling type convex tails, 10 snap close grooves, 11 snap close baffle plates, 12 flexible condoms, 13 safety helmets, 14 spiral interfaces
The specific embodiment
Shown in Fig. 1,2,3,4,5, this syringe mainly connects to form integral body by syringe needle 1, syringe 2, syringe 2 includes cylindrical shell 3 and piston 4, it is characterized in that: the afterbody at syringe needle 1 connects the recessed socket 5 that contracts of annular, the front end connection of cylindrical shell pushes away pulls out formula plush copper 6, pushes away to pull out the recessed socket 5 that contracts of formula plush copper 6 plug-in types connection syringe needle afterbody annular; The cylindrical shell afterbody connects concave groove hoop 7, and piston 4 afterbodys connect pulling type convex tail 9, and pulling type convex tail 9 plug-in types connect cylindrical shell afterbody concave groove hoop 7.
Cylindrical shell afterbody of the present utility model connects groove type ear pushing 8, and pulling type convex tail 9 plug-in types connect groove type ear pushing 8.
Pulling type convex tail 9 places of piston tail of the present utility model connect snap close baffle plate 11, the afterbody of cylindrical shell 3 is established snap close groove 10, and snap close baffle plate 11 cooperates with snap close groove 10 to prevent from when assembling pulling type convex tail 9 mistakes to be squeezed in concave groove hoop or the groove type ear pushing and forms waste product.During injection, the snap close baffle plate 11 of piston tail is inserted in the snap close groove 10 of cylindrical shell afterbodys.
As shown in Figure 3, the afterbody of this utility model syringe needle 1 connects flexible condom 12, and the front end of flexible condom is established safety helmet 13, establishes the spiral interface 14 of the locking that cooperatively interacts on the external member front and back end of flexible condom 12.
During injection, pushing away of barrel front end pulled out in the annular recessed socket 5 that contracts that formula plush copper 6 inserts the syringe needle afterbodys, push away and pull out swollen voluntarily the opening by the annular recessed socket 5 that contracts of syringe needle afterbody of formula plush copper 6 and tightly pin, syringe needle cannot pull out back once more; Secondly, take off safety helmet 13, the condom 12 that will stretch presses backward and locks with spiral interface 14; Then, with the snap close groove 10 of the snap close baffle plate 11 rotary alignment syringe afterbodys of piston tail, concave groove hoop 7 or groove type ear pushing 8 that the pulling type convex tail 9 of piston tail is aimed at the cylindrical shell afterbodys, equal power extrusion piston in cylindrical shell; When liquid medicine had been beaten, the pulling type convex tail 9 of piston tail was extruded in the concave groove hoop or groove type ear pushing of cylindrical shell afterbody, and swollen voluntarily the opening by the concave groove hoop of cylindrical shell afterbody or groove type ear pushing of pulling type convex tail 9 tightly pinned, and piston cannot pull out back once more; Finish using, condom 12 pull-ups of will stretching restore to the original state, and put on a safety helmet to guarantee that syringe needle does not expose and 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 plastics, resin.
Claims (6)
1. self-locking disposable injector, this syringe mainly connects to form integral body by syringe needle (1), syringe (2), syringe (2) includes cylindrical shell (3) and piston (4), it is characterized in that: the afterbody at syringe needle (1) connects the annular recessed socket that contracts (5), the front end connection of cylindrical shell (3) pushes away pulls out formula plush copper (6), pushes away and pulls out the annular recessed socket that contracts (5) that formula plush copper (6) plug-in type connects the syringe needle afterbody; Cylindrical shell (3) afterbody connects concave groove hoop (7), and the afterbody of piston (4) connects pulling type convex tail (9), and pulling type convex tail (9) plug-in type connects the concave groove hoop (7) of syringe afterbody.
2. self-locking disposable injector according to claim 1 is characterized in that: the afterbody of cylindrical shell (3) connects groove type ear pushing (8), and pulling type convex tail (9) plug-in type connects groove type ear pushing (8).
3. self-locking disposable injector according to claim 1, it is characterized in that: the pulling type convex tail (9) of piston (4) afterbody locates to connect snap close baffle plate (11), the afterbody of cylindrical shell (3) is established snap close groove (10), and snap close baffle plate (11) plug-in type connects snap close groove (10).
4. self-locking disposable injector according to claim 1 is characterized in that: syringe needle (1) is gone up and is connected flexible condom (12).
5. self-locking disposable injector according to claim 4 is characterized in that: establish safety helmet (13) on flexible condom (12) front end of syringe needle (1).
6. self-locking disposable injector according to claim 4 is characterized in that: the spiral interface (14) of establishing the locking that cooperatively interacts on the body front and back end of the flexible condom (12) of syringe needle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054832 CN2780219Y (en) | 2004-12-28 | 2004-12-28 | Auto locking type disposable injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420054832 CN2780219Y (en) | 2004-12-28 | 2004-12-28 | Auto locking type disposable injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2780219Y true CN2780219Y (en) | 2006-05-17 |
Family
ID=36761417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420054832 Expired - Fee Related CN2780219Y (en) | 2004-12-28 | 2004-12-28 | Auto locking type disposable injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2780219Y (en) |
-
2004
- 2004-12-28 CN CN 200420054832 patent/CN2780219Y/en not_active Expired - Fee Related
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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 |