A guided artificial oropharyngeal channel sputum suction device and working method

Abstract

The invention relates to a guided artificial oropharyngeal channel sputum suction device and a working method, comprising a straight tube and a curved tube, the straight tube and the curved tube are connected, the inner sleeve is sleeved on the inner side of the pipeline formed by the straight tube and the curved tube, and the inner sleeve The tube includes at least one set of guide tubes and at least one set of sputum suction tubes, the guide tubes and the sputum suction tubes are arranged side by side, the guide tube is provided with an infrared light sensor, the mouth of the guide tube is located at the mouth of the elbow, and the guide tube is close to the infrared light sensor. The nozzle on the side is flush with the nozzle of the sputum suction tube, and the infrared light sensor is connected with the detection host. The position of the larynx is determined according to the end-tidal carbon dioxide concentration and gas flow rate acquired by the infrared light sensor, so as to facilitate the operation of sputum suction.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a guided artificial oropharyngeal channel sputum suction device and a working method. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The artificial oropharyngeal passage device is commonly used clinically to help patients maintain a smooth airway, and can also be used to collect and analyze the patient's sputum to find pathogenic bacteria. For such patients, the sputum collection operation needs to pass the sputum suction tube through the artificial oropharyngeal channel device to reach the top of the throat to suck the sputum, so as to avoid mixing with saliva and prevent the bacteria in the saliva from interfering with the purity of the sputum, resulting in inaccurate detection. precise. [0004] During the process of collecting sputum, du...

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Problems solved by technology

[0004] During the process of collecting sputum, due to the relatively large inner diameter of the artificial oropharyngeal channel, the sputum suction tube swings too much left and right, making it difficult to align the upper part of the larynx and suck sputum; the shape of the oropharyngeal channel is curved, resulting in When the sputum tube is advanced, it is often blocked in the oropharynx; or even if it is advanced to the patient's throat near the epiglottis, it often deviates from the top of the larynx, causing the suction tube passing through the oropharyngeal passage to also deviate from the top of the larynx and cannot enter the trachea; During sputum collection, the patient was still breathing, and the end-tidal carbon dioxide (ETCO 2 ) concentration will be interfered by impurity gases, which will affect the test results

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