CN103156773A

CN103156773A - Dosing needle capable of exhausting air automatically

Info

Publication number: CN103156773A
Application number: CN2011104405747A
Authority: CN
Inventors: 刘青山
Original assignee: HUNAN PINGAN MEDICAL DEVICES TECHNOLOGY Co Ltd
Current assignee: HUNAN PINGAN MEDICAL DEVICES TECHNOLOGY Co Ltd
Priority date: 2011-12-13
Filing date: 2011-12-13
Publication date: 2013-06-19

Abstract

The invention relates to a dosing needle capable of exhausting air automatically and belongs to the technical field of medical instruments. The dosing needle capable of exhausting the air automatically is characterized in that one, two or a plurality of protruding ribs or one, two or a plurality of grooves are arranged on the surface of a needle tube of the dosing needle in the length direction or on part of the surface of the needle tube of the dosing needle in the length direction, the dosing needle is made of rigid plastic in an injection molding mode, a needle seat and the needle tube are of an integral structure, and the diameter of the root portion of the needle tube is larger than the diameter of the front end of the needle tube. According to the dosing needle capable of exhausting the air automatically, clinical operation is enabled to be fast and convenient due to the fact that air in a dosing injector or in an infusion bottle does not need to be exhausted separately after medicine liquid is drawn by the needle and dosing is accomplished, and quality of mass production is easy to guaranteed due to the fact that production efficiency of injection molding machining is higher than that of metal dosing needles.

Description

A kind of from the aerofluxus dispensing needle

Affiliated technical field

The present invention relates to a kind ofly from the aerofluxus dispensing needle, belong to technical field of medical instruments.

Background technology

Dispensing needle has been widely used in molten medicine, aspiration medicinal liquid or dosing clinically, conventional dispensing needle is when using end, in the syringe that makes up a prescription or the infusion bottle after dosing, gas pressure is too high, affect next step medicinal liquid preparation, dosing or clinical transfusion, usually need to discharge separately the gas in dispensing injector with pin or infusion bottle, make troubles to medical worker's operation, and conventional dispensing needle needle tubing is that metal processing is bonded on needle stand and makes, production efficiency is low, the problems such as mass production difficult quality guarantee.

Summary of the invention

The invention provides a kind of from the aerofluxus dispensing needle, it have easy to use, simple in structure, production efficiency is high, the easy characteristics such as assurance of batch production quality.

The technical solution adopted for the present invention to solve the technical problems is: the total length on dispensing needle needle tubing surface or partial-length are provided with axial one, two or more pieces fin or groove, dispensing needle is in the dosing process, gas is discharged from the gap of fin or groove and bottle stopper automatically, the medical worker need not to discharge separately the gas in dispensing injector with pin or infusion bottle, makes clinical manipulation more convenient.

Dispensing needle is by the hard plastic injection molding manufacturing, and needle stand and needle tubing are an overall structure, and the diameter of needle tubing root is greater than the needle tubing point diameter, and the dispensing needle of this structure is simple in structure, adopts injection molding, and the high and batch production quality of production efficiency easily guarantees.

Description of drawings

Fig. 1 is the structural representation of first embodiment;

Fig. 1-1st, the profile of embodiment Fig. 1;

Fig. 2 is the structural representation of second embodiment;

Fig. 2-1st, the profile of embodiment Fig. 2;

Fig. 3 is the structural representation of the 3rd embodiment;

Fig. 3-1st, the profile of embodiment Fig. 3;

Fig. 4 is the structural representation of the 4th embodiment;

Fig. 4-1st, the profile of embodiment Fig. 4;

In Fig. 1, Fig. 1-1, Fig. 2, Fig. 2-1, Fig. 3, Fig. 3-1, Fig. 4, Fig. 4-1: 1. needle stand, 2. needle tubing root, 3. needle tubing, 4. needle tubing front end, 5. fin, 6. groove

The specific embodiment

Below, accompanying drawings performance of the present invention:

Embodiment one:

The total length on dispensing needle needle tubing (3) surface is provided with axial one, two or more pieces fin (5), dispensing needle is in the dosing process, gas is discharged from the gap of fin (5) and bottle stopper automatically, the medical worker need not to discharge separately the gas in dispensing injector with pin or infusion bottle, makes clinical manipulation more convenient.

Dispensing needle is by the hard plastic injection molding manufacturing, needle stand (1) is an overall structure with needle tubing (3), the diameter of needle tubing root (2) is greater than the diameter of needle tubing front end (4), the dispensing needle of this structure is simple in structure, adopt injection molding, the high and batch production quality of production efficiency easily guarantees.

Embodiment two:

The structure of embodiment two, embodiment and embodiment one are basic identical, and difference is that embodiment two is provided with axial one, two or more pieces fin (5) for the surperficial partial-length of dispensing needle needle tubing (3).

Embodiment three:

The total length on dispensing needle needle tubing (3) surface is provided with axial one, two or more pieces groove (6), dispensing needle is in the dosing process, gas is discharged from the gap of groove (6) and bottle stopper automatically, the medical worker need not to discharge separately the gas in dispensing injector with pin or infusion bottle, makes clinical manipulation more convenient.

Embodiment four:

The structure of embodiment four, embodiment and embodiment three are basic identical, and difference is that embodiment four is provided with axial one, two or more pieces groove (6) for the surperficial partial-length of dispensing needle needle tubing (3).

Claims

1. one kind from the aerofluxus dispensing needle, it is characterized in that the total length on dispensing needle needle tubing surface or partial-length are provided with axial one, two or more pieces fin (5) or groove (6).

2. one kind from the aerofluxus dispensing needle, it is characterized in that dispensing needle is by the hard plastic injection molding manufacturing.

3. according to claim 2 from the aerofluxus dispensing needle, it is characterized in that: needle stand (1) is an overall structure with needle tubing (3).

4. according to claim 2 from the aerofluxus dispensing needle, it is characterized in that: the diameter of needle tubing root (2) is greater than the diameter of needle tubing front end (4).