CN201643257U - Self-destroying disposable safety syringe - Google Patents
Self-destroying disposable safety syringe Download PDFInfo
- Publication number
- CN201643257U CN201643257U CN201020171749XU CN201020171749U CN201643257U CN 201643257 U CN201643257 U CN 201643257U CN 201020171749X U CN201020171749X U CN 201020171749XU CN 201020171749 U CN201020171749 U CN 201020171749U CN 201643257 U CN201643257 U CN 201643257U
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- CN
- China
- Prior art keywords
- bar head
- syringe
- rod
- self
- bar
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- 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 safety syringe which pertains to the technical field of medical instruments, which comprises a syringe body and an injecting core bar in the syringe body, wherein the injecting core bar is formed by a bar body and a bar head which are connected with each other; the front end of the syringe body is provided with a connecting needle bed; a liquid through hole is arranged at the center of the needle bed; and the bar head of the injecting core bar is provided with a rubber plug. The self-destroying disposable safety syringe is characterized in that a buckling neck is arranged in the liquid through hole at the center of the needle bed; the front end of the bar head is provided with an elastic reverse lock catch; the outer diameter of the elastic reverse lock catch is larger than the inner diameter of the buckling neck; a seal ring is arranged between the needle bed and the syringe body; the bar head is connected with the bar body through points; the rear end of the syringe body is provided with a stop ring; and the inner diameter of the stop ring is smaller than the diameter of the bar head. The self-destroying disposable safety syringe has simple, compact and reasonable structure, low manufacturing cost, and simple and convenient technique, and is simple for operation and convenient to use. The syringe can be used safely for one time in a self-destroying way, does not cause cross infection, and does not scratch people easily in the aftertreatment process, and is beneficial to health of people.
Description
Technical field
This utility model relates to a kind of structure of syringe, and particularly a kind of disposable syringe with safety self-destruct 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 often taken place that disposable ordinary syringe is carried out secondary and used, even repeatedly use.Therefore, designing a kind of disposable syringe that the safety self-destruct 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 safe re-use preventing once-used syringe.This syringe can be accomplished safety self-destruct after the disposable use, can not take place reusable may, avoid cross infection, and product is easy to manufacture, cheap.
The purpose of this utility model is to realize like this, safe 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 injection cylinder is installed and is connected needle holder, the liquid-through hole of the center of needle holder for connecting, on the bar head of injection core rod plug is installed, it is characterized in that being provided with the button neck in the liquid-through hole at described needle holder center, nose is provided with elasticity and locks button in, elasticity is locked the internal diameter of the external diameter of button greater than the button neck in, be provided with sealing ring 2 between needle holder 1 and the cylindrical shell 4, for junction point is connected, cylinder back-end is provided with retaining ring 14 between bar head and the body of rod, and the internal diameter of retaining ring is less than the external diameter of bar head.
Described body of rod rear end is provided with the lamellar safety plate, adopts junction point to be connected between the body of rod and the lamellar safety plate.Described junction point is a thin footpath joint pin.
Be respectively equipped with groove on the needle holder 1 of described sealing ring installation place correspondence and the cylindrical shell 4.
Described barrel front end is provided with back-off 12 and the boss 13 that positioning needle headstock 1 is installed.
Safe 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, the elasticity 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 elasticity in padlock and is lived and can not fall back, pull back injection core rod this moment, the bar head is to cylinder back-end retaining ring place, make junction point 9 fractures, the bar head that comprises needle holder and band 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 safety self-destruct.Junction point between bar head and the body of rod is disconnected separate, the bar head that comprises plug is stuck and stays in the injection cylinder.Separate if button neck and boss can not make bar head and junction point between the body of rod disconnect smoothly, the bar head is pulled to cylinder back-end retaining ring place, makes junction point 9 fractures, and injection cylinder and injection core rod all can not be used again, reach the purpose of safety self-destruct.Safety plate is established in the body of rod rear end of safe 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 can be accomplished the disposable use of safety self-destruct, guarantees safe in utilizationly, avoids syringe to cause viral cross infection because of repeated use.
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;
Fig. 6 is the structure enlarged diagram at barrel front end of the present utility model position;
Fig. 7 is the structure enlarged diagram at cylinder back-end of the present utility model position.
Among the figure: 1 needle holder, 2 sealing rings, 3 core bars, 4 cylindrical shells, 5 bodies of rod, 6 bar heads, 7 plugs, 8 are locked in and are buckled, 9 junction points, 10 safety plates, 11 are buckled neck, 12 back-offs, 13 boss, 14 retaining rings.
The specific embodiment
As shown in Figure 1 and Figure 2, safe re-use preventing once-used syringe is made of installations such as injection cylinder 4, injection core rod 3, plugs 7.The front end of injection cylinder 4 is established needle holder 1, and there is the liquid-through hole of perforation at the center of needle holder 1, and button neck 11 is set in the liquid-through hole at needle holder center.Injection core rod is made up of the body of rod 5 and bar head 6 two parts, plug 7 is installed, to prevent the seepage of medicinal liquid on the bar head of injection core rod.The front end of bar head is established elasticity and is locked button 8 in, and elasticity is locked the internal diameter of button 8 external diameter greater than button neck 11 in, is connected by junction point 9 between bar head and the body of rod, and body of rod rear end is provided with the lamellar safety plate 10 that is connected with body of rod employing junction point.The use of safe 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 needle holder; 4, firmly pull back injection core rod, the button neck is locked elasticity in padlock and is lived, or the bar head makes junction point 9 fractures to cylinder back-end retaining ring place, finishes the safety self-destruct function, reaches the safety self-destruct purpose.
Claims (5)
1. safe 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 injection cylinder is installed and is connected needle holder, the liquid-through hole of the center of needle holder for connecting, on the bar head of injection core rod plug is installed, it is characterized in that being provided with the button neck in the liquid-through hole at described needle holder center, nose is provided with elasticity and locks button in, the external diameter that elasticity is locked button in is provided with sealing ring (2) greater than the internal diameter of button neck between needle holder (1) and the cylindrical shell (4), is connected for junction point between bar head and the body of rod, cylinder back-end is provided with retaining ring (14), and the internal diameter of retaining ring is less than the external diameter of bar head.
2. safe re-use preventing once-used syringe according to claim 1 is characterized in that described body of rod rear end is provided with the lamellar safety plate, adopts junction point to be connected between the body of rod and the lamellar safety plate.
3. safe re-use preventing once-used syringe according to claim 1 is characterized in that described junction point is thin footpath joint pin.
4. be respectively equipped with groove on the safe re-use preventing once-used syringe according to claim 1, the needle holder (1) that it is characterized in that described sealing ring installation place correspondence and cylindrical shell (4).
5. safe re-use preventing once-used syringe according to claim 1 is characterized in that described tube
The body front end is provided with back-off (12) and the boss (13) that positioning needle headstock (1) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020171749XU CN201643257U (en) | 2010-04-16 | 2010-04-16 | Self-destroying disposable safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020171749XU CN201643257U (en) | 2010-04-16 | 2010-04-16 | Self-destroying disposable safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201643257U true CN201643257U (en) | 2010-11-24 |
Family
ID=43108451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020171749XU Expired - Lifetime CN201643257U (en) | 2010-04-16 | 2010-04-16 | Self-destroying disposable safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201643257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2010
- 2010-04-16 CN CN201020171749XU patent/CN201643257U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |