CN104107473A

CN104107473A - Syringe piston and cylindrical mandrel connecting structure

Info

Publication number: CN104107473A
Application number: CN201310134508.6A
Authority: CN
Inventors: 马才
Original assignee: Shandong Weigao Group Medical Polymer Co Ltd
Current assignee: Shandong Weigao Group Medical Polymer Co Ltd
Priority date: 2013-04-18
Filing date: 2013-04-18
Publication date: 2014-10-22

Abstract

The invention belongs to the field of medical instruments, and particularly relates to a syringe piston and cylindrical mandrel connecting structure. The syringe piston and cylindrical mandrel connecting structure is characterized in that a fixing mandrel head is processed at the front end of the cylindrical mandrel, a piston is mounted on the fixing mandrel head, a mandrel push rod is processed at the tail end of the cylindrical mandrel, a button is mounted on the mandrel push handle, and four guide vanes are processed in the middle of the cylindrical mandrel. In conclusion, since the guide vanes (5) are processed on the cylindrical mandrel (4), the cross section of the cylindrical mandrel (4) can be processed to be very small, and raw materials can be saved greatly; due to the action of the guide vanes (5), stable and reliable working of the cylindrical mandrel (4) in a syringe (1) can be guaranteed.

Description

The link structure of a kind of syringe piston and cartridge type core bar

Technical field

the invention belongs to medical apparatus field, specifically relate to the link structure of a kind of syringe piston and cartridge type core bar.

Background technology

the core bar of the syringe using clinically at present, ubiquity the raw-material structural design of waste, because the syringe using is clinically disposable, so waste suitable surprising, medical personnel are when inhaling medicine and injection operation, syringe core rod push-and-pull is effort relatively also, and hands is easily from the landing of overcoat edge, thereby causes the generation of malpractice.

Summary of the invention

object of the present invention, is just to overcome above-mentioned shortcoming, and the link structure of a kind of syringe piston providing and cartridge type core bar.

the present invention is achieved in that the link structure of a kind of syringe piston and cartridge type core bar, it is characterized in that: the front end at cartridge type core bar is processed with fixedly pin head, fixedly above pin head, piston is being installed, at the end of cartridge type core bar, be processed with core bar and push away handle, button is installed on core bar pushes away handle, at the medium position of cartridge type core bar, is processed with four prerotation vanes.

Accompanying drawing explanation

below in conjunction with accompanying drawing, the present invention will be further described in detail.

fig. 1 is main cutaway view of the present invention.

fig. 2 is Fig. 1 " A-A " cutaway view.

fig. 3 is Fig. 1 " B-B " cutaway view.

fig. 4 is Fig. 1 " C-C " cutaway view.

in figure, each label declaration is as follows:

1, syringe, 2, piston, 3, fixing pin head, 4, cartridge type core bar, 5, prerotation vane, 6, syringe flange, 7, core bar pushes away handle, 8, button.

The specific embodiment

syringe 1 of the present invention is selected the time processing molding in mould of PP polypropylene material, the effect of syringe 1 is store medicinal liquid and piston 2 is slided in syringe 1, piston 2 is selected the time processing molding in mould of butyl rubber material, the effect of piston 2 is exactly by core bar, to push away the thrust of handle 7, the medicinal liquid of syringe 1 interior storage is passed through to syringe needle, in patient body, inject, or the medicinal liquid of syringe 1 interior storage is carried out to other operation etc. by syringe needle, fixedly pin head 3 is selected the time processing molding in mould of PP polypropylene material, its effect is exactly fixed piston 2, cartridge type core bar 4 is selected the time processing molding in mould of PP polypropylene material, its effect is exactly to guarantee that fixedly pin head 3 piston 2 working stabilities are above reliable, prerotation vane 5 is selected the time processing molding in mould of PP polypropylene material, its effect is exactly to guarantee that cartridge type core bar 4 is reliable at the interior working stability of syringe 1, syringe flange 6 is selected the time processing molding in mould of PP polypropylene material, its effect is exactly easy to operate reliable and stable while injecting, core bar pushes away handle 7 and selects the time processing molding in mould of PP polypropylene material, its effect is exactly while working, guarantee that cartridge type core bar 4 working stabilities are reliable, button 8 is selected the time processing molding in mould of PP polypropylene material, its effect is exactly convenient and reliable operation.

in sum, the present invention is owing to being processed with prerotation vane 5 on cartridge type core bar 4, the cross section of cartridge type core bar 4 can be processed into so very littlely, can greatly save raw material like this, owing to there being the effect of prerotation vane 5, can guarantee that the working stability of cartridge type core bar 4 in syringe 1 is reliable.

Claims

1. the link structure of a syringe piston and cartridge type core bar, it is characterized in that: the front end at cartridge type core bar is processed with fixedly pin head, fixedly above pin head, piston is being installed, at the end of cartridge type core bar, be processed with core bar and push away handle, button is installed on core bar pushes away handle, at the medium position of cartridge type core bar, is processed with four prerotation vanes.