CN202173655U - Self-destroying disposable syringe - Google Patents
Self-destroying disposable syringe Download PDFInfo
- Publication number
- CN202173655U CN202173655U CN2011202321278U CN201120232127U CN202173655U CN 202173655 U CN202173655 U CN 202173655U CN 2011202321278 U CN2011202321278 U CN 2011202321278U CN 201120232127 U CN201120232127 U CN 201120232127U CN 202173655 U CN202173655 U CN 202173655U
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- CN
- China
- Prior art keywords
- rod
- self
- disposable syringe
- hole
- 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 - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a self-destroying disposable syringe, comprising an injecting cylinder body and an injecting core rod arranged in the injecting cylinder body, wherein the injecting core rod consists of a rod body and a rod head, which are connected with each other, the front end of the injecting cylinder body is provided with a needle head seat, the center of the needle head seat is a liquid through hole, the liquid through hole is internally provided with an elastic baffle piece, a rubber stopper is arranged on the rod head, the front end of the rod head is provided with an inverse lock catch, the outer diameter of the inverse lock catch is larger than the inner diameter of the elastic baffle piece, and the rod head is connected with the rod body by a connecting point. Compared with the existing disposable syringe, the self-destroying disposable syringe has the outstanding advantages that the self-destroying disposable syringe is reasonable and simple in structure, easy to produce and manufacture, low in manufacturer cost, and simple in technology; and the self-destroying disposable syringe is simple to operate, convenient to use, and low in medicine liquor residual quantity. The self-destroying disposable syringe can be destroyed by itself after being used for once and can not be secondly used, and the viral cross infection caused by the reuse of the syringe can be avoided.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of syringe, is specifically related to re-use preventing once-used syringe.
Background technology
Re-use preventing once-used syringe is widely used in medical field, has avoided using unhygienic syringe and the viral cross infection that produces.But common disposable syringe has the possibility of being used by secondary, causes some medical institutions' violation operations.Because ordering about of economic interests, they use disposable use ordinary syringe secondary, even repeatedly use.Therefore, designing a kind of disposable syringe that self-destroying function is arranged, stop disposable syringe by the possibility that secondary uses, is the urgent needs in market.
Summary of the invention
Goal of the invention: to the deficiency that exists in the prior art; The purpose of this utility model provides a kind of re-use preventing once-used syringe; So that it can accomplish thoroughly self-destruction after the disposable use, can not use by secondary, guarantee safe in utilization; Avoid syringe to cause viral cross infection, and product is easy to manufacture, cheap because of repeated use.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that this utility model adopts is:
Re-use preventing once-used syringe comprises the intravital injection core rod of injection cylinder and injection tube, and injection core rod is made up of the interconnective body of rod and bar head, and the front end of described injection cylinder is provided with needle holder, the liquid-through hole of the center of needle holder for connecting; Be provided with elastic block piece in the liquid-through hole at described needle holder center, said elastic block piece is provided with 2 at least, is distributed in symmetrically and evenly on the liquid-through hole inwall, between elastic block piece, forms through hole; The bar head of injection core rod is provided with plug, and nose is provided with locks button in, locks the internal diameter of the external diameter of button greater than through hole in, is connected for junction point between bar head and the body of rod.
Between the described body of rod rear end and the body of rod, be provided with safety plate.
Re-use preventing once-used syringe; Earlier safety plate is removed the absorption medicinal liquid before using, in the use injection core rod is advanced into the front portion of injection cylinder, before the locking button in and enter into the elastic block piece in the liquid-through hole of needle holder center of bar head; Elastic block piece will be locked padlock in and live and can not fall back; The pulled backwards injection core rod broke off bar head and junction point between the body of rod and separated this moment, and the bar epicranium that comprises plug blocks to be stayed in the injection cylinder; Injection cylinder and injection core rod all can not be used again, reach the purpose of self-destruction.
Safety plate is established in the body of rod rear end of re-use preventing once-used syringe, and its effect is: when use at syringe (1), must get rid of safety plate, could shift injection core rod onto the end, make liquid medicine injection all inject human body; (2) prevent before completed knocked down products and syringe use misoperation and being taken place by the phenomenon of self-destruction; (3) can make user clearly discern syringe and whether be used, prevent that syringe from being used by secondary.
Beneficial effect: compare with existing disposable syringe, the outstanding advantage that the re-use preventing once-used syringe of this utility model has comprises: this re-use preventing once-used syringe is rational in infrastructure simple, manufactures easily, and cost of manufacture is low, and technology is easy; Simple to operate, easy to use, the medicinal liquid residual quantity is low.This syringe can be accomplished thoroughly self-destruction after the disposable use, can not use by secondary, guarantees safe in utilizationly, avoids syringe to cause viral cross infection because of repeated use.
Description of drawings
Fig. 1 is the structural representation of this utility model re-use preventing once-used syringe;
Fig. 2 is the sketch map that bar head and the body of rod break off self-destruction behind the disposable use re-use preventing once-used syringe.
Fig. 3 be among Fig. 1 B to the structure enlarged diagram;
Fig. 4 is the structure enlarged diagram at nose position;
Fig. 5 is an A-A sectional structure sketch map among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is done further explanation.
Like Fig. 1, Fig. 3, Fig. 4 and shown in Figure 5, re-use preventing once-used syringe is made up of parts such as injection cylinder 1, injection core rod 2, plugs 3.The front end of injection cylinder 1 is established needle holder, and there is the liquid-through hole of perforation at the center of needle holder, and elastic block piece 7 is set in the liquid-through hole at needle holder center, and elastic block piece 7 is provided with 2 at least, is distributed in symmetrically and evenly on the liquid-through hole inwall, between elastic block piece 7, forms through hole.Injection core rod is made up of the body of rod 4 and bar head 5 two parts, and dress plug 3 on the bar head of injection core rod is to prevent the seepage of medicinal liquid.The front end of bar head is provided with locks button 8 in, locks the internal diameter of button 8 external diameter greater than through hole in, is connected by junction point 9 between bar head and the body of rod, and the setting of body of rod rear end is selected the lamellar safety plate 6 that is connected with the body of rod.Elastic block piece 7 can to becoming evenly to be located on the liquid-through hole inwall, preferably use 3 for 1,2,3 and polylith more.Junction point 9 can be provided with 1,2 or a plurality of.
When using re-use preventing once-used syringe, at first open safety plate 6, safety plate 6 promptly fractures; Extract required injection drug then, inject; Injection finishes, bar head 5 and 1 anterior connection of injector cartridge; Firmly pull back injection core rod 2, at this moment, elastic block piece 7 chuckings are locked button 8 in, and the bar epicranium is pinned; Junction point 9 fractures, bar head 4 breaks away from the body of rod 5, accomplishes self-destroying function; Reach the self-destruction purpose, as shown in Figure 2, the bar head and the body of rod break off self-destruction behind the disposable use re-use preventing once-used syringe.Therefore, this re-use preventing once-used syringe should satisfy when design: elastic block piece 7 tightens the coupling mechanism force of locking button 8 in should be greater than the binding strength between the bar head 4 and the body of rod 5.
Claims (3)
1. re-use preventing once-used syringe; Comprise injection cylinder (1) and be located at the injection core rod (2) in the injection cylinder (1); Injection core rod (2) is made up of the interconnective body of rod (4) and bar head (5); The front end of described injection cylinder (1) is provided with needle holder, is provided with the liquid-through hole of perforation at the center of needle holder; It is characterized in that: in said liquid-through hole, be provided with elastic block piece (7), said elastic block piece (7) is provided with 2 at least, is distributed in symmetrically and evenly on the liquid-through hole inwall, between elastic block piece (7), forms through hole; On bar head (5), be provided with plug (3), bar head (5) front end is provided with locks button (8) in, locks the internal diameter of the external diameter of button (8) greater than through hole in, is connected by junction point (9) between bar head (5) and the body of rod (4).
2. re-use preventing once-used syringe according to claim 1 is characterized in that: between the said body of rod (4) rear end and the body of rod (4), be provided with safety plate (6).
3. re-use preventing once-used syringe according to claim 1 is characterized in that: said elastic block piece (7) is provided with 3, and one-tenth is evenly distributed on the liquid-through hole inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202321278U CN202173655U (en) | 2011-07-04 | 2011-07-04 | Self-destroying disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202321278U CN202173655U (en) | 2011-07-04 | 2011-07-04 | Self-destroying disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202173655U true CN202173655U (en) | 2012-03-28 |
Family
ID=45863565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202321278U Expired - Lifetime CN202173655U (en) | 2011-07-04 | 2011-07-04 | Self-destroying disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202173655U (en) |
-
2011
- 2011-07-04 CN CN2011202321278U patent/CN202173655U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120328 |
|
| CX01 | Expiry of patent term |