CN200966819Y - Spring type safe self-destroyed type injection - Google Patents
Spring type safe self-destroyed type injection Download PDFInfo
- Publication number
- CN200966819Y CN200966819Y CN 200620064726 CN200620064726U CN200966819Y CN 200966819 Y CN200966819 Y CN 200966819Y CN 200620064726 CN200620064726 CN 200620064726 CN 200620064726 U CN200620064726 U CN 200620064726U CN 200966819 Y CN200966819 Y CN 200966819Y
- Authority
- CN
- China
- Prior art keywords
- injection
- injection rod
- injection tube
- draw point
- awl
- 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
Links
Images
Abstract
The utility model relates to a self-destructive injector, in particular to a safe self-destructive injector which can make a steel needle pumped back to a syringe under the action of a spring after the injection, which comprise a syringe, an injection rod arranged in the syringe, a rubber plug arranged on the tail end of the injection rod and a needle stand sleeved outside the tail end of the syringe; wherein the steel needle is arranged on the needle stand, the top end of the injection rod penetrates through the rubber plug, a clamping device is arranged between the lower end of the steel needle and top end of the injection rod and the interior of the syringe is provided with a steel needle non-return device; the utility model is characterized in that the back end of the syringe is provided with an automatic pumping-back device for the injection rod. The steel needle is clamped on the upper part of the injection rod through the clamping device; meanwhile, under the action of the spring of the automatic pumping-back device, the injection rod is pulled downwards to drive the steel needle to automatically withdraw to the syringe in order to reach the safe and self-destructive effect.
Description
Technical field:
This utility model relates to a kind of self-destroyed syringe, and especially a kind of the use in injection can make the safe self-breaking syringe of draw point pumpback to the injection tube under the effect of back at spring.
Background technology:
Cause the cross infection of virus for fear of using antihygienic syringe, disposable syringe is widely used at medical field.Reuse in order to stop artificial recovery, people are provided with self-desttruction equipment on disposable syringe.But,, causes common self-destruction syringe the cross infection of virus though preventing the repeated use of syringe to a certain extent, but syringe uses the back because draw point exposes and makes depleted syringe produce many inconvenience in processes such as collection, transportation, processing, still might stab medical worker and other relevant personnel, cause the infection of virus and bacteria.
Chinese patent once disclosed a kind of draw point pumpback safety type self-destroyed syringe, the feature of this patent is between draw point lower end and injection rod top bayonet unit to be set, make it behind injectable drug, draw point is buckled in the upper end of injection rod by bayonet unit, reaches the purpose of self-destruction.When injection rod back during pull, draw point can be returned in the injection tube, prevent that draw point from stabbing medical worker and other relevant personnel's phenomenon.But draw point returns to the injection tube domestic demand and is operated by the medical worker, can not realize finishing automatically.
Summary of the invention:
The purpose of this utility model is to overcome the weak point of the above syringe, provides a kind of and uses its draw point of back can return to safe self-breaking syringe in the injection tube automatically in injection.
This utility model, comprise injection tube, be positioned at injection tube injection rod, place the injection rod end plug, be coated at the needle stand of injection tube end, draw point is positioned on the needle stand, the top of described injection rod penetrates plug, between draw point lower end and injection rod top, bayonet unit is set, the draw point check device is set in injection tube, it is characterized by:, the automatic pumpback device of injection rod is set in the rear end of injection tube.
This utility model, the automatic pumpback device of described injection rod by the sheath that is arranged at the injection tube rear end, spring, back-up ring and be located at push away on the injection rod circle constitute, the internal diameter of sheath is greater than the internal diameter of injection tube, sheath and injection tube are for being fastenedly connected, spring places between jacket inner wall and the injection rod outer wall, the one end withstands on the injection tube rear end, and the other end withstands on stopping on the wing of sheath rear portion by back-up ring, and the internal diameter that pushes away the external diameter of circle and sheath is for movingly.
This utility model, described bayonet unit can only be inserted and be arranged at the vertical interior snap ring hole of injection rod by the agnail awl that is arranged at the draw point lower end and constitute, and are provided with elastic joint on interior snap ring hole; Agnail is bored the dogging shoulder on only inserting to described draw point check device and the stop ring that is arranged in the injection tube constitutes by being arranged at.
This utility model, described agnail awl is only inserted, and the upper end is the draw point sleeve pipe, its profile is the secondary cylinder, described cylinder and needle stand endoporus are complementary, the needle stand endoporus is provided with the top shoulder, and at top shoulder place configuration sealing ring, the agnail awl is inserted and only is provided with the transfusion through hole, the agnail awl is inserted lower end only for stinging awl, and the thorn awl is complementary with the vertical interior snap ring hole of injection rod.
This utility model in the telescopic upper end of described draw point, is provided with the filler chamber.
This utility model, owing between draw point lower end and injection rod top, bayonet unit is set, and, the automatic pumpback device of injection rod is set in the rear end of injection tube.After injection was finished, draw point was buckled in the top of injection rod by bayonet unit; Meanwhile, under the effect of automatic pumpback device spring, downward pull injection rod, injection rod drives draw point and returns to automatically in the injection tube, reaches the effect of safety and self-destruction.
Description of drawings:
Fig. 1, Fig. 2 are the structure principle chart of embodiment.
Fig. 3, Fig. 4 are embodiment work process sketch map.
Among the figure, 1, draw point 2, needle stand 21, top shoulder 3, injection tube 31, stop ring 4, plug 5, injection rod 51, interior snap ring hole 52, elastic joint 53, push away that circle 6, agnail awl only insert 61, transfusion through hole 62, thorn awl 63, dogging shoulder 64, filler chamber 65, draw point sleeve pipe 7, sealing ring 8, sheath 81, stop wing 9, spring 10, back-up ring.
The specific embodiment:
With reference to accompanying drawing, this spring type safety self-destruction syringe, comprise injection tube 3, be positioned at injection tube injection rod 5, place the injection rod end plug 4, be coated at the needle stand 2 of injection tube end, draw point 1 is positioned on the needle stand, the injection rod top penetrates plug, between draw point lower end and injection rod top bayonet unit is set, and the draw point check device is set in injection tube, in the rear end of injection tube 3, the automatic pumpback device of injection rod is set.The automatic pumpback device of described injection rod 53 is made of the sheath 8 that is arranged at the injection tube rear end, spring 9, back-up ring 10 and the pushing away circle be located on the injection rod, the internal diameter of sheath is greater than the internal diameter of injection tube, sheath and injection tube are for being fastenedly connected (not drawing among the figure), spring places between jacket inner wall and the injection rod outer wall, the one end withstands on the injection tube rear end, the other end withstands on stopping on the wing 81 of sheath rear portion by back-up ring, and the internal diameter that pushes away the external diameter of circle and sheath is for movingly.Described bayonet unit by the agnail awl that is arranged at the draw point lower end only insert 6 and be arranged at injection rod vertical in snap ring hole 51 constitute.Agnail is bored the dogging shoulder 63 on only inserting to the draw point check device and the stop ring 31 that is arranged in the injection tube constitutes by being arranged at.The agnail awl is only inserted, and the upper end is a draw point sleeve pipe 65, its profile is the secondary cylinder, described cylinder and needle stand endoporus are complementary, the needle stand endoporus is provided with top shoulder 21, at top shoulder place configuration sealing ring 7, the agnail awl is inserted and only is provided with transfusion through hole 61, the agnail awl is inserted lower end only and is thorn awl 62, the thorn awl is complementary with the vertical interior snap ring hole of injection rod, interior snap ring hole is provided with elastic joint 52, in the upper end of described draw point sleeve pipe 65, filler chamber 64 is set, make the sealing that increases behind its filler between draw point 1 and the sleeve pipe 65 and be connected tightness.
The using method and the operation principle of present embodiment are as follows:
When clinical use, the using method of syringe extracts medicinal liquid routinely, and also the using method of syringe is carried out injecting liquid drug routinely.Only insert dogging shoulder 63 on 6 and withstand stop ring 31 in the injection tube 3 owing to be arranged on agnail awl, prevent to contract in the draw point 1, guarantee carrying out smoothly of injection work.After injection is finished,, make the interior snap ring hole 51 on injection rod top bore 62 buckles and be connected with the thorn of the slotting lower end of agnail awl because agnail awl is inserted the top shoulder 21 that cylinder 65 only withstands needle stand 2 endoporus.Meanwhile, make the circle 53 that pushes away of its afterbody enter sheath 8 owing to push away on the injection rod 5, take advantage of a situation and to stop that wing 81 is to extrapolation on the sheath 8, eliminated the barrier effect (as shown in Figure 3) that stops 81 pairs of springs 9 of wing, spring 9 is given by back-up ring 10 and is pushed away 53 1 thrusts of circle, injection rod 5 is pulled down (direction shown in the figure) together with draw point 1, because it is cydariform and tool elasticity that the agnail awl is inserted bottom only, when injection rod when drop-down, the effective width that is arranged at the agnail awl dogging shoulder 63 on only inserting is diminished, make it can pass through stop ring 31, draw point can be returned in the injection tube, make agnail awl only insert 6 and return to (as shown in Figure 4) in the injection tube automatically, reach the effect of safety and self-destruction together with draw point sleeve pipe 65 and draw point 1.
Claims (5)
1, a kind of spring type safety self-destruction syringe, comprise injection tube (3), be positioned at injection tube injection rod (5), place the injection rod end plug (4), be coated at the needle stand (2) of injection tube end, draw point (1) is positioned on the needle stand, the top of described injection rod penetrates plug, between draw point lower end and injection rod top, bayonet unit is set, the draw point check device is set in injection tube, it is characterized by: the rear end in injection tube (3) is provided with the automatic pumpback device of injection rod.
2, spring type safety self-destruction syringe according to claim 1, it is characterized by: the automatic pumpback device of described injection rod is by the sheath that is arranged at the injection tube rear end (8), spring (9), back-up ring (10) and be located at and push away circle (53) on the injection rod and constitute, the internal diameter of sheath is greater than the internal diameter of injection tube, sheath and injection tube are for being fastenedly connected, spring places between jacket inner wall and the injection rod outer wall, the one end withstands on the injection tube rear end, the other end withstands on stopping on the wing (81) of sheath rear portion by back-up ring, and the internal diameter that pushes away the external diameter of circle and sheath is for movingly.
3, spring type safety self-destruction syringe according to claim 1, it is characterized by: described bayonet unit is inserted (6) by the agnail awl that is arranged at the draw point lower end and is arranged at the vertical interior snap ring hole (51) of injection rod and constitutes, and is provided with elastic joint (52) on interior snap ring hole; Described draw point check device is bored the dogging shoulder (63) on only inserting and is arranged at interior stop ring (31) formation of injection tube by being arranged at agnail.
4, spring type safety self-destruction syringe according to claim 3, it is characterized by: described agnail awl is draw point sleeve pipe (65) on only inserting, its profile is the secondary cylinder, described cylinder and needle stand endoporus are complementary, the needle stand endoporus is provided with top shoulder (21), and at top shoulder place configuration sealing ring (7), the agnail awl is inserted and only is provided with transfusion through hole (61), the agnail awl is inserted lower end only for stinging awl (62), and the thorn awl is complementary with the vertical interior snap ring hole of injection rod.
5, spring type safety self-destruction syringe according to claim 4 is characterized by: in the upper end of described draw point sleeve pipe (65), filler chamber (64) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620064726 CN200966819Y (en) | 2006-09-25 | 2006-09-25 | Spring type safe self-destroyed type injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620064726 CN200966819Y (en) | 2006-09-25 | 2006-09-25 | Spring type safe self-destroyed type injection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200966819Y true CN200966819Y (en) | 2007-10-31 |
Family
ID=38966390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620064726 Expired - Fee Related CN200966819Y (en) | 2006-09-25 | 2006-09-25 | Spring type safe self-destroyed type injection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200966819Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497017A (en) * | 2017-09-25 | 2017-12-22 | 南京律智诚专利技术开发有限公司 | A kind of disposable injection device with vacuum cavity |
| CN107569747A (en) * | 2017-09-25 | 2018-01-12 | 南京律智诚专利技术开发有限公司 | A kind of disposable injection device |
| WO2019006705A1 (en) * | 2017-07-05 | 2019-01-10 | 广东海鸥医疗器械股份有限公司 | Syringe |
-
2006
- 2006-09-25 CN CN 200620064726 patent/CN200966819Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006705A1 (en) * | 2017-07-05 | 2019-01-10 | 广东海鸥医疗器械股份有限公司 | Syringe |
| CN107497017A (en) * | 2017-09-25 | 2017-12-22 | 南京律智诚专利技术开发有限公司 | A kind of disposable injection device with vacuum cavity |
| CN107569747A (en) * | 2017-09-25 | 2018-01-12 | 南京律智诚专利技术开发有限公司 | A kind of disposable injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101484198A (en) | Breech loaded fixed needle syringe and automatic injection device having the same | |
| CN200966819Y (en) | Spring type safe self-destroyed type injection | |
| CN101143238A (en) | Spring type safety self-destruction syringe | |
| CN201939825U (en) | Automatically-retractive safe injector | |
| CN201098441Y (en) | Safety self-breaking injector capable of exchanging steel needle seat | |
| CN101143237A (en) | Steel needle retractable safety self-destructing syringe | |
| CN201375735Y (en) | Spring type safe self-destruction syringe | |
| CN201070486Y (en) | Spring type safe self-breaking syringe | |
| CN214702916U (en) | Blood culture bottle sample collection system | |
| CN200994972Y (en) | Safety spring self-destructive syringe | |
| CN2666462Y (en) | Needle withdrawing safety self-destroying syringe | |
| CN200980874Y (en) | Spring type safety self-destructing syringe | |
| CN2788829Y (en) | Disposable medical safety injector | |
| CN201227459Y (en) | Disposable syringe | |
| CN201020124Y (en) | Steel needle retraction type safety self-destructing injector | |
| CN102068740B (en) | Automatic retraction type safety injector | |
| CN105413017A (en) | Disposable self-destruction injection syringe | |
| CN102488948B (en) | Self-destruction syringe with medicine dissolving region | |
| CN201379862Y (en) | Spring-type safe self-destroying syringe | |
| CN2728525Y (en) | Safety injector | |
| CN205287118U (en) | Disposable self -destruction injector | |
| CN201067564Y (en) | Steel needle retraction type safety self-destructing syringe | |
| CN214415254U (en) | Medicine dissolving needle with good heat resistance | |
| CN219782825U (en) | Injector for treating livestock diseases | |
| CN200998489Y (en) | Spring type safe self-breaking syringe |
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 |