CN201150693Y - Dosage needle - Google Patents

Abstract

A dispensing needle belongs to the technical field of medical instruments, and the technical scheme includes that the dispensing needle comprises a tube for injections, a piston, a piston push rod and a puncture needle, and is characterized in that a relief pipe is arranged on the lateral surface of the puncture needle. The dispensing needle is simple in structure and convenient in usage, and is capable of timely reducing the internal pressure of an infusion bottle and decreasing dispensing difficulties when injecting liquid to a chemical bottle and a infusion bottle.

Description

A kind of dispensing needle

Technical field:

This utility model belongs to the medical instruments technical field, is a kind of dispensing needle specifically.

Background technology:

The nursing staff is when infusing to patient, need first preparating liquid, at present, preparating liquid uses disposable syringe mostly clinically, be that the hand-held disposable syringe of nursing staff extracts injection, in the injection ampoule, after medicament fully dissolved, draw again and inject in the infusion bottle, when in ampoule and infusion bottle, injecting liquid, because pressure of the inside of a bottle progressively increases, operate very difficultly, bring great difficulty to the work of making up a prescription.

Summary of the invention:

The purpose of this utility model provides a kind of when injection liquid in ampoule and infusion bottle, and it is intrinsic pressure in time to alleviate bottle, is convenient to the dispensing needle of dispensing operation.

The technical solution of the utility model is: comprise injection needle, piston, piston push rod and piercing needle, it is characterized in that being fixed with relief pipe in the piercing needle side.

The beneficial effects of the utility model are: this utility model is simple in structure, and is easy to use, and when injecting liquid in ampoule and infusion bottle, it is intrinsic pressure in time to alleviate bottle, has alleviated the difficulty of making up a prescription.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model.

Among the figure 1, injection needle, 2, piston, 3, piston push rod, 4, piercing needle, 5, relief pipe.

The specific embodiment:

Comprise injection needle 1, piston 2, piston push rod 3 and piercing needle 4, it is characterized in that being fixed with relief pipe 5 in piercing needle 4 sides.When in ampoule and infusion bottle, injecting liquid, piercing needle 4 is thrust bottle stopper together with relief pipe 5 operate and get final product.

Claims (1)

1, a kind of dispensing needle comprises injection needle (1), piston (2), piston push rod (3) and piercing needle (4), it is characterized in that: be fixed with relief pipe (5) in piercing needle (4) side.

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