An inflatable double-lumen endotracheal tube for anesthesia

Abstract

The invention discloses an inflatable type double-cavity trachea cannula for anesthesia, and belongs to the technical field of medical instrument manufacturing. The inflatable type double-cavity trachea cannula is composed of a double-cavity cannula, a left bifurcated tube, a right bifurcated tube and an auxiliary inserting board, the wall of the double-cavity cannula, the wall of the left bifurcated tube and the wall of the right bifurcated tube are respectively composed of an inner wall and the outer wall, inflatable nozzles are communicated between the inner walls and the outer walls, an arc-shaped flat tube is arranged on the cross section of the auxiliary inserting board, a bifurcated control rod is arranged on the auxiliary inserting board, elastic clamps are arranged on the edge of a main board, the edge of a left branch tube and the edge of a right branch tube, the edge of the double-cavity cannula, the edge of the left bifurcated tube and the edge of the right bifurcated tube are arranged in the elastic clamps, the double-cavity cannula and the auxiliary inserting board are inserted into the trachea through the oral cavity, a bifurcated rod of the bifurcated control rod is closed, then, the bifurcated rod of the bifurcated control rod is opened, meanwhile, the double-cavity cannula and the auxiliary inserting board are continuously inserted into the trachea, the left bifurcated tube and the right bifurcated tube enter the left bronchus and the right bronchus respectively, air is fed into gaps between the inner walls and the outer walls through the inflatable nozzles, at the moment, the edges of the double-cavity cannula, the edge of the left bifurcated tube and the edge of the right bifurcated tube are disengaged from the elastic clamps, the whole auxiliary inserting board is taken out of the trachea, and according to the device, the double-cavity cannula can be accurately and controllably placed into the trachea.

Description

technical field [0001] The invention belongs to the technical field of medical equipment manufacturing, and relates to a double-lumen tracheal intubation tube for operation anesthesia. Background technique [0002] Before the operation, the patient generally needs to be anesthetized. In order to ensure that the patient can breathe under anesthesia, a tube is inserted into the trachea through the mouth, and breathing is performed with the help of a ventilator. The purpose of double-lumen tracheal intubation is to completely isolate the ventilation of the left and right lungs, and to perform independent ventilation of the left and right lungs, so as to ensure the safety of the patient and establish appropriate conditions for the success of the operation. The currently used double-lumen endotracheal tube is made of plastic or rubber, and a long bifurcated branch (left branch or right branch) extends downward from the lower end of the double-lumen tube trunk unilaterally, and en...

AI Technical Summary

Problems solved by technology

After the currently used double-lumen endotracheal tube is inserted into the trachea, the left and right branches are easily twisted, making the position of the double-lumen endotracheal tube difficult to predict. According to relevant data, this type of double-lumen endotracheal tube The success rate of separating the left and right lung ventilation is 65%, that is, 35% of them fail to achieve the ideal left and right lung isolation ventilation, failing to achieve the goal of establishing ideal conditions for surgery

At present, the method of judging that the double-lumen tracheal intubation can accurately achieve the separation of the left and right lungs is to use a fiberoptic bronchoscope to observe its position in the trachea. Only trained personnel can use it correctly, and fiberoptic bronchoscopy is also very expensive; using fiberoptic bronchoscopy to judge the exact position of double-lumen endotracheal intubation can only be generally implemented in tertiary and first-class hospitals, but it is difficult for low-level hospitals that account for the vast majority of hospitals

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