CN203227143U

CN203227143U - Connecting structure of syringe piston and three-guide-piece cylindrical core rod

Info

Publication number: CN203227143U
Application number: CN 201320195487
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: 2013-10-09
Anticipated expiration: 2023-04-18

Abstract

The utility model belongs to the field of medical instruments and particularly relates to a connecting structure of a syringe piston and a three-guide-piece cylindrical core rod. The connecting structure is characterized in that a fixed core rod head is processed at the front end of the cylindrical core rod, a piston is mounted on the fixed core rod head, a core rod push handle is processed at the tail end of the cylindrical core rod, a button is mounted on the core rod push handle, three guide pieces are processed outside the middle position of the cylindrical core rod, and three ribbed plates are processed inside the cylindrical corer rod. In conclusion, a fixing ring is processed on the fixed core rod head (3), so that the piston (2) can be stably and reliably fixed on the fixed core rod head (3) to guarantee stability and reliability in working.

Description

The syndeton of a kind of syringe piston and three prerotation vane cartridge type core bars

Technical field

This utility model belongs to the medical apparatus field, specifically relates to the syndeton of a kind of syringe piston and three prerotation vane cartridge type core bars.

Background technology

The core bar of the present syringe that uses clinically, ubiquity the raw-material structural design of waste, because the syringe of Shi Yonging is disposable clinically, so waste suitable surprising, medical personnel are when inhaling medicine and injection operation, the 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.

The utility model content

The purpose of this utility model just is to overcome above-mentioned shortcoming, and the syndeton of a kind of syringe piston that provides and three prerotation vane cartridge type core bars.

This utility model is achieved in that the syndeton of a kind of syringe piston and three prerotation vane cartridge type core bars, it is characterized in that: the front end at the cartridge type core bar is processed with fixedly pin head, piston fixedly is being installed above the pin head, be processed with core bar at the end of cartridge type core bar and push away handle, button on pushing away handle, core bar is installed, outside at the medium position of cartridge type core bar is processed with three prerotation vanes, is processed with three gussets at the interior location of cartridge type core bar.

Description of drawings

The utility model is described in more detail below in conjunction with accompanying drawing.

Fig. 1 is main cutaway view of the present utility model.

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.

Each label declaration is as follows among the figure:

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

The specific embodiment

Syringe 1 of the present utility model is selected the time processing molding in mould of PP polypropylene material for use, the effect of syringe 1 is to 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 for use, the effect of piston 2 is exactly the thrust that pushes away handle 7 by core bar, the medicinal liquid that stores in the syringe 1 is passed through syringe needle, in patient's body, inject, perhaps the medicinal liquid that stores in the syringe 1 is carried out other operation etc. by syringe needle, fixedly pin head 3 is selected the time processing molding in mould of PP polypropylene material for use, fixedly be processed with retainer ring above the pin head 3, its effect is exactly fixed piston 2, cartridge type core bar 4 is selected the time processing molding in mould of PP polypropylene material for use, its effect is exactly to guarantee that fixedly piston 2 working stabilities above the pin head 3 are reliable, prerotation vane 5 is selected the time processing molding in mould of PP polypropylene material for use, its effect is exactly to guarantee that cartridge type core bar 4 working stability in syringe 1 is reliable, syringe flange 6 is selected the time processing molding in mould of PP polypropylene material for use, its effect is exactly easy to operate reliable and stable when injecting, core bar pushes away handle 7 and selects the time processing molding in mould of PP polypropylene material for use, its effect is exactly when working, guarantee that cartridge type core bar 4 working stabilities are reliable, button 8 on pushing away handle 7, core bar is installed, button 8 is selected the time processing molding in mould of PP polypropylene material for use, and its effect is exactly that work is convenient.

In sum, this utility model is being owing to fixedly be processed with retainer ring above the pin head 3, like this can piston 2 reliable and stable be fixed on fixing pin head 3 above, thereby the assurance working stability is reliable.

Claims

1. the syndeton of a syringe piston and three prerotation vane cartridge type core bars, it is characterized in that: the front end at the cartridge type core bar is processed with fixedly pin head, piston fixedly is being installed above the pin head, be processed with core bar at the end of cartridge type core bar and push away handle, button on pushing away handle, core bar is installed, outside at the medium position of cartridge type core bar is processed with three prerotation vanes, is processed with three gussets at the interior location of cartridge type core bar.