CN2333402Y

CN2333402Y - Pneumothorax puncture and drainage needle

Info

Publication number: CN2333402Y
Application number: CN 98221846
Authority: CN
Inventors: 许新毅; 郑海涛; 黄海
Original assignee: 许新毅
Priority date: 1998-07-15
Filing date: 1998-07-15
Publication date: 1999-08-18
Anticipated expiration: 2008-07-15

Abstract

The utility model relates to a thoracic cavity puncture and drainage needle, which belongs to the technical field of medical appliances. The utility model relates to the thoracic cavity puncture and drainage needle used for treating pneumothorax. The utility model comprises a needle body. The utility model is characterized in that a piston is arranged in the needle body. The upper end of the piston is contacted with a reset spring, and the lower end is provided with a push rod. The piston is provided with a drainage pore canal which is matched with an air outlet on the needle body. The utility model has the functions of puncture and drainage. The utility model is suitable for treating pneumothorax, which has the advantages of reliable, safe, simple operation and rapid.

Description

The thoracic drainage and thoracentesis pin

A kind of thoracic drainage and thoracentesis pin belongs to technical field of medical instruments, relates to the thoracic drainage and thoracentesis pin of pneumothorax treatment.

The thoracic drainage and thoracentesis of pneumothorax is operation commonly used clinically, used apparatus mainly is thoracentesis needle and unidirectional drainage system (mostly being water-sealed drainage bottle), has following deficiency in operating process: 1, can't not determine by other apparatus whether needle point enters the thoracic cavity; 2, puncture needle is communicated with drainage system by pipeline, easily breaks down, and patient activity inconvenience 3, can not prevent that lung from opening the contingent puncture needle in back again to the damage of lung; 4, complicated operation is time-consuming, use multiple apparatus; 5, the inserting needle process may take place to block and be hemorrhage.

The purpose of this utility model provides a kind of puncture drainage needle, to overcome the deficiencies in the prior art.

The purpose of this utility model is finished like this: it has a needle body, needle body top is cylindrical cavity, the lower end is the needle point of hollow, piston is installed in the needle body, and the piston upper end contacts with a back-moving spring, and the lower end is connected with a push rod, when spring is free state, stretch out needle body through needle point, a drain duct is arranged on the piston, cooperate with gas outlet on the needle body.

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

Fig. 2 is that A of the present utility model is to view

Describe in detail with reference to the accompanying drawings below

4 is needle bodies among the figure, top is cylindrical cavity, be provided with a gas outlet 10, the lower end is the needle point 11 of hollow, one piston 3 is installed in the cylindrical cavity, piston 3 upper ends connect 1 with the back-moving spring that is installed in the needle body top and contact, and the lower end connects a push rod 8, and push rod 8 lower ends have a valve 9 to cooperate with needle point 11 lower ends, piston 3 is provided with a drain duct 5, cooperate with the gas outlet 10 on the needle body 1, spring 1 is when free state, and push rod 8 is outside needle point 11 stretches out needle body 4, drain duct 5 is communicated with gas outlet 10, check valve 6 is installed on the

gas outlet

10,7 is the rotation of the stroke and the piston of control piston, is provided with an alignment pin 2 on piston 3, and alignment pin 2 cooperates with needle body 4.

During inserting needle, because organizational stress compressing valve 9 promotes to move behind the piston by push rod, back-moving spring is compressed, and needle body is closed state, and needle point appears, be convenient to inserting needle, after needle point entered the thoracic cavity, pressure disappeared, and spring stretches, the push rod reach, closed state is removed, and the drain duct is communicated with the gas outlet, can drain thoracic cavity gas.

This utility model has the puncture and drainage function simultaneously, and is reliable, safe, easy and simple to handle, quick, is applicable to the pneumothorax treatment, the pneumothorax treatment when the particularly suitable state of emergency or condition are simple and crude.

Claims

1, a kind of thoracic drainage and thoracentesis pin, form by needle body (4), the lower end of needle body (4) is needle point (11), it is characterized in that: a piston (3) is installed in needle body (4), piston (3) upper end contacts with the back-moving spring (1) that is installed on needle body (4) upper end, the lower end is provided with push rod (8), also is provided with drain duct (5) on the piston (3), cooperates with gas outlet (10) on the needle body (1).

2, a kind of thoracic drainage and thoracentesis pin according to claim 1 is characterized in that: push rod (8) lower end is a valve (9), cooperates with needle point (11).

3, a kind of thoracic drainage and thoracentesis pin according to claim 1 and 2 is characterized in that: be provided with an alignment pin (2) on piston (3).