Air breather special for ensuring respiration and counter-flow prevention without pain gastroscope

Abstract

The invention provides a dedicated ventilation device of a painless gastroscope, which ensures free breath and prevents reflux. The device comprises a hood provided thereon with two inlets and a gastroscope inlet therebetween, wherein the inlet to the side is a respiration inlet connected with a breathing machine, and the gastroscope inlet is connected with a sheathed gastroscope guide tube that has one end positioned in the upper part of the hood and the other end positioned in the lower part of the hood. The device further comprises an air sac at the external part of the front end of the sheathed gastroscope guide tube in the lower part of the hood, and the air sac communicates with an air injection pipe, wherein the other end of the air injection pipe is positioned in the upper part of the hood and communicates with an air injection valve. The invention can relieve syndromes caused by respiratory depression of various degrees due to general anesthetics, such as hypoxemia, severe respiratory depression, breath and cardiac arrest, and even death caused by non-timely rescue. The invention ensures efficient respiratory support without lightening the anaesthesia in consideration of the respiratory depression, and meanwhile prevents the occurrence of reflux and aspiration. Therefore, the invention can ensure the success of gastroscopy while providing respiratory support, thereby providing safety and convenience for the painless gastroscopy.

Description

technical field [0001] The invention relates to a medical device, in particular to a special ventilation device for a painless gastroscope that prevents reflux and ensures breathing. Background technique [0002] Painless gastroscopy is a method of examination and treatment that uses propofol, fentanyl and other intravenous anesthesia and analgesics first to make the patient enter a state of general anesthesia, and then perform gastroscopy and endoscopic treatment in a painless and unconscious state. It is widely used for its pain free and bad memory. [0003] Before the present invention, for painless gastroscopy, if the anesthesia is too shallow, the patient will appear restless resistance and affect the operator's operation, so it is necessary to maintain sufficient depth of anesthesia. Propofol and fentanyl are general anesthesia drugs, both of which have different degrees of respiratory depression, and intraoperative hypoxemia is very common, and some patients may expe...

AI Technical Summary

Problems solved by technology

Propofol and fentanyl are general anesthesia drugs, both of which have different degrees of respiratory depression, and intraoperative hypoxemia is very common, and some patients may experience severe respiratory depression or even respiratory and cardiac arrest. resulting in the death of the patient with catastrophic consequences

At the same time, because the throat protective reflex is suppressed during painless gastroscopy, patients with emergency department, gastric bleeding and pyloric obstruction are at high risk of reflux and aspiration

Therefore, the application of painless technology in gastroscopy for such patients is limited

[0004] In addition, if severe respiratory depression occurs during painless gastroscopy, because the gastroscope affects the fit of the ordinary ventilation mask with the patient's cheek, the air leakage is serious, and artificial respiration cannot be performed at all. Effective artificial assisted breathing can only be performed after the patient's face is anastomosed, which brings great inconvenience to the operator; at the same time, part of the gas entering the stomach during mask ventilation also increases the possibility of reflux and aspiration

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