Negative pressure suction gun

Abstract

The invention relates to a negative pressure suction gun, which effectively solves the problems of positive pressure flushing liquid splashing and negative pressure buffer tanks being full; the technical solution is to include a box body with two buffer tanks and a drain valve at the bottom of the buffer tank , there is a liquid inlet valve at the top; the two liquid inlet valves are connected with a suction pipe and a gun head through a tee; each buffer tank has a first joint at the upper end; each buffer tank has a vertical guide rod , the guide rod is set with a floating plate that can float with the liquid, and there is a plug corresponding to the first joint on the floating plate; a commutator is installed in the box, and the middle part of the commutator has a valve core that can seal and rotate. There are two L-shaped channels, one is connected to the atmosphere, the other is connected to a negative pressure pipeline through a rotary joint, the other interface of the tee is connected to a piston chamber, and a piston rod that can automatically reset is installed in the piston chamber, and the piston rod moves back and forth The valve core can be driven to rotate in one direction through the rotary joint, and the invention realizes continuous flushing and avoids liquid splashing.

Description

technical field [0001] The invention relates to the field of medical device flushing, in particular to a negative pressure suction gun. Background technique [0002] At present, tubular medical devices such as catheters used after surgery need to be cleaned after use, so as to keep the devices clean and prevent contamination. In the prior art, positive pressure water guns are often used to flush this type of equipment. Although the flushing effect is obvious, when the water gun is used, the water pressure is insufficient, which will make the washing unclean, and the water pressure is too high, which will cause serious liquid Splash, resulting in the spread of pollution, which is not conducive to cleaning, it is necessary to clean the cleaning site after cleaning; at the same time, when using positive pressure flushing, not all places are equipped with positive pressure equipment. [0003] However, the negative pressure suction of the hospital is like water and electricity t...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to solve the problems existing in the prior art, the object of the present invention is to provide a negative pressure suction gun, which can effectively solve the problems of positive pressure flushing liquid splashing and negative pressure buffer tank being full

Images