Laryngeal mask ventilation monitoring method and system

Abstract

The invention discloses a laryngeal mask ventilation monitoring method. The method comprises the following steps: acquiring a monitoring video; predicting a key position of an interested object of a single-frame image in the monitoring video to obtain a first predicted position; performing motion prediction on multiple frames of images in the monitoring video to obtain predicted motion information; obtaining interested optical flow information according to the first prediction position and the prediction motion information; acquiring the respiratory rate of the patient by using the interested optical flow information; the first prediction position is a key point position which may appear for the interested object and is predicted by using an image feature extraction algorithm; the invention further discloses a monitoring system. According to the method, the key position of the interested object in the laryngeal mask and the optical flow information of the interested object in the laryngeal mask are obtained, the abnormal ventilation condition of the laryngeal mask is qualitatively and quantitatively analyzed according to the key position, the displacement of the laryngeal mask or the irregular breathing condition of a patient is found in time, the possible backflow and aspiration conditions are found, and the ventilation safety of the laryngeal mask is guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a method and system for monitoring ventilation of a laryngeal mask. Background technique [0002] Airway management is a key link in clinical anesthesia and emergency resuscitation. Among many airway management tools, the laryngeal mask is one of the most widely used ventilation tools in modern clinical anesthesia and pre-hospital emergency-in-hospital emergency-intensive care and treatment. The laryngeal mask is an airway appliance composed of an inflatable leaf-shaped silicone mask and a rubber connecting tube. It can be inserted blindly or visually into the throat through the mouth. When the air bag of the laryngeal mask is inflated, the inflated throat The mask can surround and seal the epiglottis and glottis, forming a low-pressure sealing mask around the larynx, and the laryngeal mask connecting tube leads to the outside of the mouth and can be connected to a ventil...

AI Technical Summary

Problems solved by technology

[0005] Intraoperative mechanical ventilation often needs to last for several hours. Although the insertion process of the laryngeal mask is completed under direct vision, for unstable ventilation techniques, there are great hidden dangers in the supervision of the laryngeal mask during the subsequent mechanical ventilation

Changes in the patient's position during the operation and slight swallowing activities in the larynx may lead to changes in the position of the laryngeal mask, resulting in increased airway pressure and intragastric pressure, hypoventilation or even suffocation. These problems are often difficult to detect in time through conventional ventilator parameters. Risks associated with intraoperative ventilation for patients

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