A kind of syringe core rod that has four prerotation vanes
Technical field
This utility model belongs to the medical apparatus field, specifically relates to a kind of syringe core rod that has four prerotation vanes.
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 a kind of syringe core rod that has four prerotation vanes that provides.
This utility model is achieved in that a kind of syringe core rod that has four prerotation vanes, it is characterized in that: the front end at the cross core bar is processed with pin head, piston is installed on pin head, be processed with core bar at the end of cross core bar and push away handle, be processed with four prerotation vanes at the medium position of cross 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, pin head, 4, the cross core bar, 5, prerotation vane, 6, the syringe flange, 7, core bar pushes away handle.
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, pin head 3 is selected the time processing molding in mould of PP polypropylene material for use, its effect is exactly fixed piston 2, cross core bar 4 is selected the time processing molding in mould of PP polypropylene material for use, its effect is exactly to guarantee that 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 cross 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, and guarantees that cross core bar 4 working stabilities are reliable.
In sum, this utility model is owing to be processed with prerotation vane 5 on cross core bar 4, can be processed into the cross section of cross core bar 4 very for a short time like this, can save raw material greatly like this, owing to the effect of prerotation vane 5 is arranged, can guarantee that the working stability of cross core bar 4 in syringe 1 is reliable.