Effect of New Oropharyngeal Airway on Incidence of Hypoxia During Painless Gastroenteroscopy in Elderly Patients

This product is produced and sold by Shanghai Elifu Medical Technology Co., LTD., and has been officially put into clinical use in March 2023.The product is named oropharyngeal airway for disposable endoscope, which is composed of nasal plug, bite, oropharyngeal channel, oxygen supply tube, lanyard and optional accessories carbon dioxide gas catheter and carbon dioxide collection tube.The model used in this study is JK (Oropharyngeal airway for endoscope with end-expiratory carbon dioxide Collection) with L/M/S three specifications, which is used to prevent airway obstruction caused by backward tongue fall during endoscopic surgery/examination, establish oropharyngeal airway for patients, and provide nasal oxygen at the same time