Airbag pressure adjusting system for ventilator and use method of adjusting system

Abstract

The invention discloses an airbag pressure adjusting system for a ventilator. The system includes the ventilator and a trachea cannula, the ventilator has an electronic control device, the trachea cannula includes an air guide tube, the in-vitro end of the air guide tube is connected with an air inlet nozzle, and the air inlet nozzle is matched with a connection opening in the ventilator in an insertion manner; an airbag is connected around the inner end of the air guide tube, and the airbag is connected with an inflation nozzle through an inflation tube; a first pressure sensor is connected with the electric control device; and a connection opening in the ventilator is connected with a measuring tube, and the first pressure sensor extends into the measuring tube. The invention also discloses a use method of the above adjusting system. When pressure detected by the first pressure sensor is greater than 1000 Pa and less than or equal to 3000 Pa, a low-pressure solenoid valve is closed,and a high-pressure solenoid valve is opened; and when pressure detected by the first pressure sensor is greater than or equal to 0 and less than or equal to 1000 Pa, the high-pressure solenoid valveis closed, and the low-pressure solenoid valve is opened. The system greatly reduces the damage to patient tracheas while ensuring airbag sealing performance, and is more energy-saving.

Description

technical field [0001] The invention relates to the technical field of medical instruments. Background technique [0002] In recent years, mechanical ventilation with endotracheal intubation has been widely used in clinical rescue and treatment of various respiratory failures and provides anesthesia and postoperative respiratory support. It is a common and effective measure to save patients' lives, and occupies an important position in modern medicine. [0003] However, mechanical ventilation also brings great risks while giving patients respiratory support, and the complications caused by it cannot be ignored. Therefore, airway management is extremely important. The management of artificial airway includes the inflation and deflation of the airbag and the management of the pressure of the airbag. [0004] The front part of the endotracheal tube inserted into the trachea is equipped with an air bag, which has the function of sealing the airway and preventing air leakage and...

AI Technical Summary

Problems solved by technology

[0010] To put it simply, the existing airbag pressure control technologies are all constant pressure control, and there is no way to adjust the airbag pressure according to the situation. Those skilled in the art do not know how to adjust the airbag pressure according to the situation, and what is the benefit of adjusting the airbag pressure according to the situation?

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