Air bag pressure management device used in invasive positive pressure ventilation operation

Abstract

The invention discloses an air bag pressure management device used in an invasive positive pressure ventilation operation, and belongs to the field of medical equipment. According to the invention, the concentration of carbon dioxide overflowing from the lung above an air bag is monitored; when the concentration of the monitored carbon dioxide is higher than the concentration of the carbon dioxidein air, an air channel is proved to be not sealed tightly, and an air pump works to inflate the air bag, so the air bag makes closer contact with the air channel, and the airtightness of the air bagis improved; when the concentration of the monitored carbon dioxide is lower than the concentration of the carbon dioxide in the air, an electromagnetic valve is opened to release a small amount of air, so the air bag is in loose contact with the air channel, and the air circulates in a reciprocating manner until the most proper pressure value is reached; and a pressure value is continuously monitored and kept, so air leakage around the air bag is avoided, and air channel mucosa is prevented from being damaged. The air bag pressure management device provided by the invention is simple and reasonable in structural design, convenient and fast to use and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of medical equipment, in particular to an airbag pressure management device used in positive pressure ventilation operations. Background technique [0002] Positive pressure ventilation refers to the ventilation method of positive pressure mechanical ventilation through the establishment of an artificial airway. The artificial airway is a gas channel established by inserting a tracheal tube into the patient's airway through the nose or through the mouth. Invasive ventilator is a mechanical ventilation device that can perform invasive positive pressure ventilation. Its function is to assist or control the breathing movement of the patient, achieve the purpose of exchanging the gas in the lungs, reduce the consumption of the human body, and benefit the recovery of the patient's respiratory function. . [0003] The purpose of artificial airway airbag management is to prevent gas leakage during mechanical venti...

AI Technical Summary

Problems solved by technology

Traditional methods include minimum closure volume (MOV) and minimum leak technique (MLT), but the former is prone to airway damage, while the latter is prone to aspiration and has a small amount of air leakage that affects the tidal volume

[0004] Now the mainstream method is the air bag pressure gauge detection method, set a certain pressure (25 ~ 35cm H 2 O), and then monitor the air bag pressure every 4 to 6 hours, but regardless of the applicability of the set pressure (individual differences) or the uncertainty caused by the long monitoring time span, it may affect the patient's tidal volume or cause airway damage

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