CN201578702U - Self-destroying disposable syringe - Google Patents
Self-destroying disposable syringe Download PDFInfo
- Publication number
- CN201578702U CN201578702U CN2009202831644U CN200920283164U CN201578702U CN 201578702 U CN201578702 U CN 201578702U CN 2009202831644 U CN2009202831644 U CN 2009202831644U CN 200920283164 U CN200920283164 U CN 200920283164U CN 201578702 U CN201578702 U CN 201578702U
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- CN
- China
- Prior art keywords
- syringe
- plunger
- rod
- self
- injection
- 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
A self-destroying disposable syringe belongs to the technical field of medical equipment, and comprises a syringe barrel, a syringe plunger and the like, wherein the syringe plunger comprises a plunger body and a plunger head which are mutually connected, the front end of the syringe barrel is provided with a needle seat, the center of the needle seat is provided with a through liquid hole, a fastening neck is arranged in the through liquid hole in the center of the needle seat, a rubber plug is arranged on the head of the syringe plunger, the front end of the plunger head is provided with an elastic diffused reverse fastener whose outer diameter is larger than the inner diameter of the fastening neck, and the plunger head and the plunger body are connected in point mode. The rear end of the plunger body is provided with a strip-shaped safety piece which is connected with the plunger body in point mode. The self-destroying disposable syringe has reasonable and simple structure, easy production and manufacture and low cost, can be thoroughly destroyed after being used once, and can not be used again, thereby guaranteeing use to be safe, and preventing the syringe from causing bacteria cross infection because of repeated use.
Description
Technical field
This utility model relates to a kind of structure of syringe, and particularly a kind of disposable syringe with self-destroying function belongs to technical field of medical instruments.
Background technology
Disposable 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.
The utility model content
The purpose of this utility model is exactly for satisfying the demand in market, designing a kind of re-use preventing once-used syringe.This syringe can be accomplished thorough self-destruction, can not use by secondary, and product is easy to manufacture, cheap.
The purpose of this utility model is to realize like this, re-use preventing once-used syringe, comprise the intravital injection core rod of injection cylinder and injection tube, injection core rod is made up of the interconnective body of rod and bar head, the front end of described injection cylinder is provided with needle holder, the liquid-through hole of the center of needle holder for connecting, it is characterized in that being provided with the button neck in the liquid-through hole at described needle holder center, the bar head of injection core rod is provided with plug, nose is provided with the elasticity diffusion type and locks button in, the external diameter that the elasticity diffusion type is locked button in is greater than the internal diameter of button neck, is connected for junction point between bar head and the body of rod.
Described body of rod rear end is provided with the body of rod and selects the lamellar safety plate that is connected.
Re-use preventing once-used syringe, earlier safety are removed the absorption medicinal liquid before using, in the use injection core rod is advanced into the front portion of injection cylinder, the elasticity diffusion type of bar head is locked button in and is entered into the interior button throat of needle holder center liquid-through hole, the button neck is locked the elasticity diffusion type in padlock and is lived and can not fall back, pull back injection core rod this moment, junction point between bar head and the body of rod is disconnected to be separated, the bar head that comprises plug is stuck and stays 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 effect is: 1, when syringe uses, 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.
This utility model is rational in infrastructure simple, manufactures easily, and cost is low.This syringe is accomplished thoroughly self-destruction after the disposable use, can not use by secondary, guarantees safe in utilizationly, avoids syringe because of repeating to cause viral cross infection.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the sketch map that bar head and the body of rod disconnect self-destruction after the disposable use of this utility model.
Fig. 3 is the structure enlarged diagram at needle holder of the present utility model position;
Fig. 4 is the structure enlarged diagram at nose of the present utility model position;
Fig. 5 is an A-A sectional structure sketch map among Fig. 1.
Among the figure: 1 injection cylinder, 2 injection core rods, 3 plugs, 4 bodies of rod, 5 bar heads, 6 safety plates, 7 button necks, 8 snap closes, 9 junction points.
The specific embodiment
As shown in Figure 1 and Figure 2, re-use preventing once-used syringe is made of installations 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 button neck 7 is set in the liquid-through hole at needle holder center.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 established the elasticity diffusion type and is locked button 8 in, and the elasticity diffusion type is locked the internal diameter of button 8 external diameter greater than button neck 7 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.The use of re-use preventing once-used syringe is as follows: 1, open safety plate, safety plate promptly fractures; 2, extract required injection drug, inject; 3, injection finishes, and the bar head connects with injection cylinder is anterior; 4, firmly pull back injection core rod, make junction point 9 fractures, finish self-destroying function, reach the self-destruction purpose.
Claims (2)
1. re-use preventing once-used syringe, comprise injection cylinder (1) and the intravital injection core rod of injection tube (2), 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 is provided with needle holder, the liquid-through hole of the center of needle holder for connecting, it is characterized in that being provided with in the liquid-through hole at described needle holder center button neck (7), the bar head of injection core rod is provided with plug (3), nose is provided with the elasticity diffusion type and locks button (8) in, the external diameter that the elasticity diffusion type is locked button in is greater than the internal diameter of button neck, 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 the described body of rod (4) rear end is provided with the body of rod (4) to select the lamellar safety plate (6) that is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202831644U CN201578702U (en) | 2009-12-30 | 2009-12-30 | Self-destroying disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202831644U CN201578702U (en) | 2009-12-30 | 2009-12-30 | Self-destroying disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201578702U true CN201578702U (en) | 2010-09-15 |
Family
ID=42720695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202831644U Expired - Lifetime CN201578702U (en) | 2009-12-30 | 2009-12-30 | Self-destroying disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201578702U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631735A (en) * | 2012-05-14 | 2012-08-15 | 江西升升药业股份有限公司 | Two-piece pull-back self-destruct syringe |
| WO2021139631A1 (en) * | 2020-01-09 | 2021-07-15 | 湖南省绿洲惠康发展有限公司 | Disposable stripping-type self-destructing syringe |
-
2009
- 2009-12-30 CN CN2009202831644U patent/CN201578702U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102631735A (en) * | 2012-05-14 | 2012-08-15 | 江西升升药业股份有限公司 | Two-piece pull-back self-destruct syringe |
| WO2021139631A1 (en) * | 2020-01-09 | 2021-07-15 | 湖南省绿洲惠康发展有限公司 | Disposable stripping-type self-destructing syringe |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |