CN2654147Y - Disposable safety self destroyed micro residual injector - Google Patents
Disposable safety self destroyed micro residual injector Download PDFInfo
- Publication number
- CN2654147Y CN2654147Y CN 03263191 CN03263191U CN2654147Y CN 2654147 Y CN2654147 Y CN 2654147Y CN 03263191 CN03263191 CN 03263191 CN 03263191 U CN03263191 U CN 03263191U CN 2654147 Y CN2654147 Y CN 2654147Y
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- China
- Prior art keywords
- injection
- syringe
- self
- core rod
- residual quantity
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- Expired - Fee Related
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Abstract
The utility model discloses a disposable safe self destroy injector with less residual quantity comprising an injection needle tube, a built in needle seat, an injection pin case and an injection mandrel. The injection pin case consists of a fixing device for fixing the built in needle seat; the built in needle seat is tightly embedded inside the fixing device of the injection pin case; a rubber sealing stopper is arranged at one end of the injection mandrel that is inside the injection pin case; a locking terminal that can break the rubber sealing stopper when under force exerted is arranged inside the hollow cavity of the rubber sealing stopper; the locking terminal is fixedly connected with one end of the injection mandrel that is inside the injection pin case. The injector regarding the utility model can retract the injection needle completely back into the injection pin case, and break the injection mandrel with less residual of the liquid medicine after finishing the liquid medicine injection.
Description
Technical field
This utility model relates in a kind of medicine and hygiene fields at the clinical disposable syringe device of using for the patient infusion medicinal liquid, more particularly, relate to a kind of disposable use peace self-destroyed syringe that back stitching tube, injection core rod can be fractureed and the medicinal liquid residual quantity is atomic that after liquid medicine injection finishes, entry needle all can be shunk after use.
Background technology
When at present the patient being carried out liquid medicine injection, be extensive use of disposable syringe, this is to preventing cross infection and preventing and curing diseases and played more positive effect in the medicine and hygiene fields.But in use also there is following shortcoming in the disposable syringe that uses at present:
1. use the residual quantity of back medicinal liquid in syringe to exceed 50% than the offer of standard code, this will waste medicinal liquid, and making does not have the medicinal liquid of capacity to enter in the body, thereby can not give full play to its due effect.
2. after injecting liquid drug finishes, be difficult to this disposable syringe is damaged, cause it to flow into society again and taken advantage of the occasion to reclaim by some lawless persons, cleaning promptly drops into and reuses a little, so very easily cause the cross infection of disease, bring the factor that is absolutely unsafe to the patient.
3. after liquid medicine injection finishes, the nursing staff do not note when overlapping to injection needle slightly in that protective cap is returned, and sharp keen injection needle will puncture medical worker's hands and cause and catch, and especially acquired immune deficiency syndrome (AIDS), hepatitis etc. are by the disease of blood-borne; If do not return the cover protective cap, the exposed entry needle that has blood outside is again a polluter of environment.
For this reason, creator in this utility model relies on it to be engaged in the experience and the practice of relevant industries for many years, and, create a kind of disposable use peace self-destroyed syringe that back stitching tube, injection core rod can be fractureed and the medicinal liquid residual quantity is atomic that after liquid medicine injection finishes, entry needle all can be shunk finally after use through concentrating on studies and developing.
Summary of the invention
Main purpose of the present utility model is to solve existing disposable syringe in the fluid injection problem that the back residual liquor too much and also can utilize again by the lawless person that finishes.
Secondary objective of the present utility model is to solve existing disposable syringe easily punctures medical personnel's hand skin after fluid injection problem.
The little residual quantity syringe of disposable self-destruction safe in utilization includes in this utility model:
One can insert the injection needle of human body;
One is used for fixing the needle stand of described injection needle, and described injection needle is fixed on the small bore end of described needle stand;
One syringe cylinder includes the fixture that is used for fixing needle stand;
One can be at the inner injection core rod of passing of syringe cylinder, and this injection core rod is positioned at syringe cylinder one end and is provided with one and has hollow cavity and the mobile sealing plug with the promotion of injection core rod; It is characterized in that:
Described needle stand closely is mounted in the fixture inside of described syringe cylinder; But the screens terminal of breakseal plug be provided with the application of force in the hollow cavity of described sealing plug after, the end that this screens terminal and described injection core rod are positioned at syringe cylinder inside is connected.
Described needle stand in its outer peripheral edges be provided with can with the close-fitting flange of fixture inwall, and fixture in the upper/lower terminal edge of its inwall all convex with toward in can prevent that needle stand from skidding off outward or in the bulge loop that contracts.
Described needle stand portion's through-hole wall within it is provided with the flange that is used to fix described screens terminal away from an end of needle tubing toward in.
Described injection core rod can push the throw-out collar in the sealing plug hollow cavity after itself and described sealing plug junction are provided with an application of force when being used to promote the plug slippage and moving to the syringe bottom.
Described screens terminal is a triangle screens terminal, and its tip is two sharp keen cutting edge shapes, and the end that the other end and injection core rod extend in the sealing plug hollow cavity is connected.
Described inject cores device bar is provided with broken line in its middle part.
Described triangle screens terminal and injection core rod are one-body molded.
Described triangle screens terminal has a nose bar in the one end is one-body molded, and is corresponding with this nose bar, is provided with a groove in the end of injection core rod, this groove and nose bar tight fit.
Described triangle screens terminal is connected by adhesive means and inject cores rod end.
Described fixture is provided with some groovings that described needle stand is installed of being convenient in its periphery.
The little residual quantity syringe of self-destruction disposable safe in utilization in this utility model is by being designed to needle stand built-in needle stand, and seal by means of bulge loop between needle stand and the fixture, and gap between the two is very little, the inner through hole that passes through for medicinal liquid of needle stand also dwindles relatively simultaneously, therefore significantly fall and subtract at the fluid injection residual medicinal liquid in back that finishes, and after liquid medicine injection finishes, not only destroyed the sealing plug, and the injection needle re-injection of shrinking penetrated syringe, realize self-destroyed syringe and prevent that medical personnel from being punctured the purpose of skin, in addition, the syringe in this utility model is after use, also injection core rod is fractureed, further increase the damaged condition of syringe.
Description of drawings
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structure cross-sectional schematic of the little residual quantity syringe of disposable self-destruction safe in utilization in this utility model;
Fig. 2 is the structure cross-sectional schematic of the triangle screens terminal of the little residual quantity syringe of disposable self-destruction safe in utilization in this utility model when entering the big nose end of needle stand;
Fig. 3 is the cross-sectional schematic when needle stand bounces back in the syringe cylinder in this utility model;
Fig. 4 is that needle stand bounces back in the syringe cylinder in this utility model, and injection core rod is the sectional structure sketch map when fractureing;
Fig. 5 is the enlarged diagram of needle stand and syringe cylinder junction in this utility model;
Fig. 6 is another enforcement illustration of this utility model intermediate cam screens terminal and injection core rod connected mode.
The specific embodiment
As shown in Figure 1; the little residual quantity syringe of self-destruction disposable safe in utilization in this utility model includes injection needle 1, built-in needle stand 2, syringe cylinder 3, injection core rod 4, triangle screens terminal 5, sealing plug 6 and the needle tubing protective cap of being made by disposable material 7, wherein:
Built-in needle stand 2 is cylindrical shape, as shown in Figure 5, the centre is provided with the through hole 22 of perforation, these through hole 22 1 ends are small bore end 220, be used for inserting solid injection needle 1, the other end is big nose end 221, and the embedding of triangle screens terminal 5 is used when bouncing back built-in needle stand 2, this built-in needle stand 2 is provided with flange 20 in the end of big nose end 221 inner ring, and the periphery with macropore 221 ends is provided with at least one circle bulge loop 21 simultaneously;
One end of syringe cylinder 3 is provided with the fixture 30 that is used for fixing built-in needle stand 2, the other end is for the insertion of injection core rod 4, fixture 30 is the cylindric of hollow, its internal diameter is slightly less than the external diameter of built-in needle stand 2 big nose end 221 outer rim bulge loops 21, make when built-in needle stand 2 is mounted in fixture 30 inside, the inwall of fixture 30 can closely cooperate with bulge loop 21, and be the sealing shape, prevent that medicinal liquid from leaking, only leave a small gap between the inwall of built-in needle stand 2 and fixture 30, and, the through hole that the built-in needle stand 2 inner through holes 22 that supply medicinal liquid to pass through also have needle stand relatively now is much smaller, for this reason, can effectively reduce the residual quantity of medicinal liquid behind the built-in needle stand 2 in using this utility model; Syringe cylinder 3 the upper/lower terminal edge of its fixture 30 inwalls all convex with toward in can prevent that built-in needle stand 2 from skidding off outward or in the bulge loop 31 that contracts, simultaneously, this fixture 30 is provided with some grooving (not shown)s that built-in needle stand 2 is installed of being convenient in its periphery.
The tip of triangle screens terminal 5 is two sharp keen cutting edge shapes, the end that the other end and injection core rod 4 extend in sealing plug 6 hollow cavities 61 is connected, this triangle screens terminal 5 can be one-body molded with injection core rod 4, make by same material, also can make by different materials, and respectively by gluing or mechanical system is fixedly connected, be connected as the tight fit of groove 41 with nose bar 50, as shown in Figure 6, the nose bar 50 that wherein is positioned at triangle screens terminal 5 one ends and the groove 41 that is positioned at injection core rod 4 ends be double replacement mutually, equally also can realize friction tight purpose.
As shown in Figures 1 to 4, injection core rod 4 in its middle part a position be provided with broken line 42, along this broken line 42 after applying power slightly with regard to broken injection core rod 4, syringe is further damaged.
During the little residual quantity syringe of the self-destruction disposable safe in utilization in using this utility model; at first pull up needle tubing protective cap 7; injection at once behind the aspiration medicinal liquid; to be injected finishing; the syringe that takes off is continued to hold 44 places thrust a little pushing away of injection core rod 4; the cutting edge of triangle screens this moment terminal 5 cuts the big nose end 221 that sealing plug 6 enters built-in needle stand 3; triangle screens terminal 5 is blocked by the bulge loop 20 in the built-in needle stand 2 big nose ends 221; simultaneously; throw-out collar 40 also enters in the hollow cavity 61 of sealing plug 6; the pumpback injection core rod 4 again; utilize the built-in needle stand 2 that triangle screens terminal 5 will be equipped with injection needle 1 to bring syringe cylinder 3 the insides into; when 3 li of injection needle 1 whole indentation syringe cylinders; end 44 places that push away at injection core rod 4 add a cross force; cause injection core rod 4 to fracture along broken line 42; and make the syringe safe self-destruction; can prevent that so the medical matters nursing staff from overlapping the situation generation that protective cap is punctured hand skin because of returning; and this syringe thoroughly destroys, and prevents that fully syringe from repeating nonexpondable possibility.
Claims (10)
1. little residual quantity syringe of disposable self-destruction safe in utilization includes:
One can insert the injection needle of human body;
One is used for fixing the needle stand of described injection needle, and described injection needle is fixed on the small bore end of described needle stand;
One syringe cylinder includes the fixture that is used for fixing needle stand;
One can be at the inner injection core rod of passing of syringe cylinder, and this injection core rod is positioned at syringe cylinder one end and is provided with one and has hollow cavity and the mobile sealing plug with the promotion of injection core rod; It is characterized in that:
Described needle stand closely is mounted in the fixture inside of described syringe cylinder; But the screens terminal of breakseal plug be provided with the application of force in the hollow cavity of described sealing plug after, the end that this screens terminal and described injection core rod are positioned at syringe cylinder inside is connected.
2. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 1, it is characterized in that: described needle stand in its outer peripheral edges be provided with can with the close-fitting flange of fixture inwall, and fixture in the upper/lower terminal edge of its inwall all convex with toward in can prevent that needle stand from skidding off outward or in the bulge loop that contracts.
3. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 1, it is characterized in that: described needle stand portion's through-hole wall within it is provided with the flange that is used to fix described screens terminal away from an end of needle tubing toward in.
4. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 1, it is characterized in that: described injection core rod can push the throw-out collar in the sealing plug hollow cavity after itself and described sealing plug junction are provided with an application of force when being used to promote the plug slippage and moving to the syringe bottom.
5. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 1, it is characterized in that: described screens terminal is a triangle screens terminal, its tip is two sharp keen cutting edge shapes, and the end that the other end and injection core rod extend in the sealing plug hollow cavity is connected.
6. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 1, it is characterized in that: described inject cores device bar is provided with broken line in its middle part.
7. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 5, it is characterized in that: described triangle screens terminal and injection core rod are one-body molded.
8. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 5, it is characterized in that: described triangle screens terminal has a nose bar in the one end is one-body molded, corresponding with this nose bar, be provided with a groove in the end of injection core rod, this groove and nose bar tight fit.
9. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 5, it is characterized in that: described triangle screens terminal is connected by adhesive means and inject cores rod end.
10. according to the little residual quantity syringe of the self-destruction disposable safe in utilization described in the claim 1, it is characterized in that: described fixture is provided with some groovings that described needle stand is installed of being convenient in its periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263191 CN2654147Y (en) | 2003-09-26 | 2003-09-26 | Disposable safety self destroyed micro residual injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03263191 CN2654147Y (en) | 2003-09-26 | 2003-09-26 | Disposable safety self destroyed micro residual injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654147Y true CN2654147Y (en) | 2004-11-10 |
Family
ID=34329533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03263191 Expired - Fee Related CN2654147Y (en) | 2003-09-26 | 2003-09-26 | Disposable safety self destroyed micro residual injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654147Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006079257A1 (en) * | 2005-01-25 | 2006-08-03 | Zuoqian Lin | A self destruction disposable syringe |
| CN101884813A (en) * | 2010-07-19 | 2010-11-17 | 余利荣 | Novel low-resistance injector |
-
2003
- 2003-09-26 CN CN 03263191 patent/CN2654147Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006079257A1 (en) * | 2005-01-25 | 2006-08-03 | Zuoqian Lin | A self destruction disposable syringe |
| CN101884813A (en) * | 2010-07-19 | 2010-11-17 | 余利荣 | Novel low-resistance injector |
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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 |