Suction tube with detachable filter element

Abstract

The invention belongs to the field of clinical tools, and particularly relates to a suction tube with a detachable filter element. The suction tube provided by the invention comprises a main pipe body and a filter element; the filter element comprises a filter plate, and filter holes are formed in the filter plate; one end of an elastic supporting foot is installed on the inner plate surface of the filter plate, the other end of the elastic supporting foot forms a foot end and extends towards the inner end of the main pipe body, the three or more sets of elastic supporting feet which are sequentially and evenly distributed around the axis of the filter plate are all located on the same conical surface coaxial with the axis of the filter plate and make axial projection in the axial direction of the filter plate, and when the elastic supporting feet are in the initial non-stress state, the diameter of a circle defined by the foot ends of the elastic supporting feet is larger than the pipe diameter of the main pipe body; the inner wall of the main pipe body is correspondingly provided with clamping grooves or concave pits for the foot ends of the elastic supporting feet to be clamped in. According to the invention, the drainage objects in the suction tube can be rapidly removed, and therefore the non-blocking efficient operation drainage requirement can be continuously met, and an operation can be conducted smoothly.

Description

technical field [0001] The invention belongs to the field of clinical appliances, in particular to a suction tube with a detachable filter core. Background technique [0002] The suction tube is used with a negative pressure suction device, which can absorb bleeding, exudate, pus, and the contents of the chest viscera during the operation, so as to make the operation clear and reduce the chance of contamination. Its working principle is very simple, that is, through a certain method Create a negative pressure state of the suction head, so that the atmospheric pressure will squeeze the material outside the suction head to the suction head, thereby completing the "attraction" effect. In actual clinical use, it often happens that the drainage is blocked at the suction head of the suction tube. As the use progresses, the blockage will become more and more serious, which greatly affects the normal drainage process and affects the operation. Contents of the invention [0003] T...

AI Technical Summary

Problems solved by technology

In actual clinical use, it often happens that the drainage is blocked at the suction head of the suction tube. As the use progresses, the blockage will become more and more serious, which greatly affects the normal drainage process and affects the operation.

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