Oropharyngeal channel special for endoscope

Abstract

The invention discloses an oropharyngeal channel special for an endoscope. The oropharyngeal channel comprises a tongue pressing bent plate cooperating with an oropharyngeal air channel of a human body in shape, an air inlet cavity, an exhaust cavity, an oxygen interface and a carbon dioxide monitoring interface, wherein the inner end of the tongue pressing bent plate is used for being inserted into the air channel of a patient, panels are arranged at the outer end of the tongue pressing bent plate and used for cooperating with the outer edge of the lip or the outer sides of teeth of the patient in an abutting mode, and an opening allowing the endoscope to pass is formed in the panels; the air inlet cavity is formed in the tongue pressing bent plate and used for supplying oxygen to the patient, and oxygen outlets of the air inlet cavity are formed close to the panels; the exhaust cavity is formed in the tongue pressing bent plate and used for enabling the patient to exhale air, and an air inlet of the exhaust cavity comprises an end inlet located in the end surface of the inner end of the tongue pressing bent plate; the oxygen interface is arranged on the panels and communicates with the air inlet cavity; and the carbon dioxide monitoring interface is arranged on the panels and communicates with the exhaust cavity. The end-expiratory carbon dioxide index of the patient can be monitored while large-flow oxygen supply is performed in a painless endoscopy process, and the occurrence rate of hypoxemia of the patient is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of medical instruments, in particular to an oropharyngeal passage dedicated to an endoscope. Background technique [0002] An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. It can enter the stomach through the mouth or enter the body through other natural channels, and the endoscope can be used to see Lesions that cannot be shown by X-rays, so endoscopy is very important for doctors to diagnose the disease and formulate the best treatment plan. [0003] Painless endoscopy can significantly reduce the pain of patients during endoscopy, so painless endoscopy technology has been more and more widely used. Take painless gastroscopy as an example. Painless gastroscopy is performed on the patient under analgesia (anesthesia). Analgesia itself will cause respiratory depression (decreas...

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Problems solved by technology

[0005] Different from the above-mentioned application environments, painless gastroscopy needs to occupy the patient's oral cavity for endoscope insertion. However, the current end-tidal carbon dioxide monitoring device is mainly designed for the application scene of mechanical ventilation, so there is no room for gastroscope insertion. In the operating space of the patient's esophagus, the existing end-tidal carbon dioxide detection device cannot be used to monitor the patient's breathing conditions during painless gastroscopy. Hypoxemia was still common in patients during the

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