Backflow and airway damage preventing sterile sealed sputum suction pipe

Abstract

The invention discloses a backflow and airway damage preventing sterile sealed sputum suction pipe. The sputum suction pipe comprises a negative pressure connecting pipe, an annular protrusion, a negative pressure adjusting backflow preventing device, an adjusting button, a sterile sputum suction pipe, a backflow preventing device, a damage preventing liquid inlet end, a main attracting hole, a side guiding hole and a protecting body. The purpose is to solve the problems that holes in the side wall of the pipe adhere to the pharyngeal portion or the airway mucous membrane when negative pressure attraction is conducted, the mucous membrane deforms and protrudes into the side wall holes causing hyperemia oedema to block the airway, sputum liquid backflow in the pipe easily takes place aftersputum suction, sputum liquid backflow takes place to cause contamination, and the negative pressure in the sputum suction pipe cannot be easily controlled after a negative pressure machine is conducted.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an aseptic closed sputum suction tube for preventing reflux and preventing airway damage. Background technique [0002] Sputum suction operation is a common basic nursing operation in the hospital. It is used to remove sputum or other secretions in the patient's pharynx or trachea. Clinically, a large number of suction tubes are used, and the suction tube is connected through a negative pressure machine. After the sputum suction tube is deep into the mouth, pharynx or trachea, the sputum suction tube is pulled and extended to achieve sputum suction. However, the design of the conventional sputum suction tube has the following obvious defects: 1. The sputum suction tube commonly used clinically is a tube with small holes in the side wall. On the tracheal mucosa, and then the mucosa deforms and protrudes into the side wall hole, causing mucosal congestion and edema, and th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sterile closed sputum suction tube that prevents reflux and prevents airway damage, so as to solve the problem that the hole on the side wall of the tube will stick to the pharynx or tracheal mucosa during negative pressure suction proposed in the background technology On the upper side, the deformation of the mucous membrane protrudes into the side wall hole, causing congestion and edema of the mucous membrane, and then obstructing the airway; after suctioning, the sputum in the tube is prone to backflow, causing sputum backflow and pollution. The problem of controlling the negative pressure in the sputum tube;

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