CN206152015U - Novel injector - Google Patents

Abstract

The utility model provides a novel injector, including piston handle, spring gim peg, secondary spring, syringe barrel, piston and syringe needle. Practical syringe cylinder side wall's the U -shaped fixed plate and the solid fixed ring of piston handle upper end can realize that the syringe holds drawing liquid and injection work under the state at the one hand. The secondary spring is in tensile state at the drawing liquid in -process, shifts up at drawing liquid in -process help piston, can assist the liquid medicine among the extraction sealed container. The utility model discloses simple structure, one hand hold and to facilitate the use, are fit for popularizing and applying.

Description

A kind of novel injector

Technical field

The utility model is related to technical field of medical instruments, more particularly to a kind of novel injector.

Background technology

Syringe is a kind of common Medical Devices, and its simple structure is widely used.Under normal circumstances, syringe is being used When extracting medicine, a hand is needed to fix injector cartridge, another pulled and moved on piston handle.And sometimes for hand-held medicine Bottle, the fixed syringe of one hand simultaneously pulls piston handle, takes out medicine process slowly arduously, very inconvenient.Especially in sealing container is extracted Liquid when, in the presence of atmospheric pressure, liquid is extracted out very difficult by singlehanded pulling force, and be easily caused piston handle Move down, the liquid for having extracted is back to container.

The content of the invention

According to the problems referred to above, the utility model proposes a kind of novel injector, it has drawing liquid servicing unit, and one hand is Liquid can conveniently be extracted.

The utility model provides a kind of novel injector, including：Piston handle（3）, spring gim peg（5）, secondary spring （7）, injector cartridge（8）, piston（9）, syringe needle（10）.

Piston handle（3）Through spring gim peg（5）, lower end and piston（9）Fixed, there is retainer ring upper end（1）.

Spring gim peg（5）Lower surface and secondary spring（7）It is fixed.There is profile of tooth buckle upper end（2）, quantity is 2 ~ 4.

In injector cartridge（8）There is U-shaped fixed plate top both sides（6）.

Secondary spring（7）It is enclosed within piston handle（3）Outside, lower end and piston（9）It is fixed, and secondary spring（7）Not with injection Device cylinder（8）Inwall is contacted.

Injector cartridge（8）There is draw-in groove end（4）, quantity and profile of tooth buckle（2）Quantity correspondence.

Efforts process of the present utility model is as follows：

By injector cartridge（8）The U-shaped fixed plate of both sides（6）Forefinger and middle finger are fixed, thumb insertion retainer ring（1） In, to realize the single hand grip of syringe.Profile of tooth buckle（2）It is placed in draw-in groove（4）In, make spring gim peg（5）Axial restraint.Take out Before taking liquid, thumb promotes piston handle（3）Move down, make piston（9）Reach injector cartridge（8）Bottom, now secondary spring（7） In extended state.During drawing liquid, thumb passes through retainer ring（1）Pull piston handle（3）Upper shifting, now secondary spring（7）It is right Piston（9）There is pulling force upwards, contribute to the extraction of liquid.During liquid medicine injection, rotary-piston handle（3）, make injector cartridge（8） Wall extrudes profile of tooth buckle（2）And depart from draw-in groove（4）Constraint.Now spring gim peg（5）Axial constraint eliminate, that is, aid in Spring（7）Elastic force it is unloaded, can easily promote piston handle（3）Move down, realize the injection of medicine.

Advantage of the present utility model is as follows：

1. under the auxiliary of U-shaped fixed plate and retainer ring, during single hand grip syringe, you can easily complete drawing liquid and note Penetrate work.2. when extracting the liquid in sealing container, the pulling force effect of secondary spring contributes to the extraction of liquid, makes drawing liquid process It is convenient laborsaving.

Description of the drawings

Accompanying drawing 1 is a kind of structural representation of novel injector.

Accompanying drawing 2 is a kind of general view of novel injector.

Accompanying drawing 3 is a kind of top view of novel injector cylinder upper surface.

In figure：1. retainer ring；2. profile of tooth buckle；3. piston handle；4. draw-in groove；5. spring gim peg；6.U shape fixed plates；7. Secondary spring；8. injector cartridge；9. piston；10. syringe needle.

What the figures above was described is representative instance.

Specific embodiment

Referring to the drawings 1 representative instance for being given, U-shaped fixed plate（6）The spacing of upper and lower two plate be 10 ~ 20cm, retainer ring（1） Internal diameter be 15 ~ 30cm.Secondary spring（7）Upper end and spring gim peg（5）Fixation, lower end and piston handle（3）Together it is fixed on Piston（9）On.Piston handle（3）Through spring gim peg（5）And secondary spring（7）, guide piston（9）In injector cartridge（8） Interior slip.Piston（9）Positioned at the position of rated capacity when, secondary spring（7）In former long status.

Referring to the drawings the 3 representative instance top views for being given, draw-in groove（4）With profile of tooth buckle（2）Lateral edges be circular arc Transition, torsional spring gim peg（5）When, radiused edges guiding profile of tooth buckle（2）Depart from draw-in groove（4）Constraint, so as to unload Secondary spring（7）.

Claims (6)

1. a kind of novel injector, it is characterised in that include：Piston handle（3）, spring gim peg（5）, secondary spring（7）, injection Device cylinder（8）, piston（9）, syringe needle（10）.

2. a kind of novel injector according to claim 1, it is characterised in that：Piston handle（3）Through spring gim peg （5）, lower end and piston（9）Fixed, there is retainer ring upper end（1）.

3. a kind of novel injector according to claim 1, it is characterised in that：Spring gim peg（5）Lower surface and auxiliary Spring（7）Fixed, there is profile of tooth buckle upper end（2）, quantity is 2 ~ 4.

4. a kind of novel injector according to claim 1, it is characterised in that：In injector cartridge（8）There is U top both sides Shape fixed plate（6）.

5. a kind of novel injector according to claim 1, it is characterised in that：Secondary spring（7）It is enclosed within piston handle（3）Outward Side, lower end and piston（9）It is fixed, and secondary spring（7）Not with injector cartridge（8）Inwall is contacted.

6. a kind of novel injector according to claim 1, it is characterised in that：Injector cartridge（8）There is draw-in groove end （4）, quantity and profile of tooth buckle（2）Quantity correspondence.