CN2316960Y - Syringe - Google Patents

Abstract

The utility model relates to a syringe. A needle tube joint and a needle head adopt the embedded type connection of a projection and a groove. The syringe solves the problem that the needle tube joint and the needle head are easily separated during medicine injection process. Medicine waste is reduced. The utility model also brings convenience to operators.

Description

A kind of syringe

This utility model belongs to a kind of syringe, is used for the injection of various injection drugs.

At present, various syringes of Shi Yonging clinically, especially plastic injector for temporary use, because of syringe needle and needle tube joint place for smoothly to contact, only rely on interplanar frictional force that both are connected as one, if institute's injectable drug thickness (as medical contrast agent) relatively, perhaps injection position resistance ratios big (as beating the skin mound), all easily cause syringe needle, needle tubing to break away from, cause drug waste, also increased many troubles to the operator.

The purpose of this utility model provides the syringe that a kind of needle tube joint and syringe needle can not break away from the injectable drug process.

For realizing this purpose, the technical solution adopted in the utility model is: a kind of syringe, comprise needle tubing and syringe needle, and needle tube joint adopts projection to be connected with the groove inserted type with syringe needle.

Can be provided with projection on needle tube joint, the syringe needle corresponding site is provided with groove.

Also can be provided with groove on needle tube joint, the syringe needle corresponding site is provided with projection.

Because this utility model needle tube joint and syringe needle adopt the connected mode of projection and groove tabling, binding ratio is more firm between the two, making to cause needle tube joint and syringe needle to break away from mutually in no instance, not only reduced drug waste, alleviate operator's workload, and unlikelyly increase misery to patient.

Describe this utility model in detail below in conjunction with accompanying drawing and by embodiment:

Fig. 1 is the combine sketch map of existing syringe needle with needle tube joint;

Fig. 2 is embodiment 1 structural representation;

Fig. 3,4 is the structural representation of embodiment 2.

Embodiment 1: existing syringe needle 1 is that even surface combines with needle tube joint 2, breaks away from easily, in order to overcome this situation, groove 3 is set on syringe needle 1, corresponding site is provided with projection 4 on the needle tube joint 2, and the two inserted type connects, and can not cause disengaging in medical injection procedure.

Embodiment 2: as different from Example 1, present embodiment is provided with groove 3 on needle tube joint 2, and projection 4 or bulge loop 5 are set on syringe needle 1, makes groove 3 and projection 4 or bulge loop 5 tablings, to solve the two problem that breaks away from mutually in the medical injection procedure.

In order to solve the disengaging between needle tube joint and the syringe needle, also can adopt to be threaded.

Claims (3)

1, a kind of syringe comprises needle tubing and syringe needle, it is characterized in that, needle tube joint adopts projection to be connected with the groove inserted type with syringe needle.

2, syringe as claimed in claim 1 is characterized in that, needle tube joint is provided with projection, and the syringe needle corresponding site is provided with groove.

3, syringe as claimed in claim 1 is characterized in that, needle tube joint is provided with groove, and the syringe needle corresponding site is provided with projection.

Images