Tracheal catheter air bag accurate matching method for patient airway

Abstract

The invention discloses a tracheal catheter air bag accurate matching method for the airway of a patient. The tracheal catheter air bag accurate matching method comprises the following steps: 1) calculating the airway area S1 of the patient by adopting a CT (Computed Tomography) image; (2) it is ensured that the difference between the air bag area of the tracheal catheter and the airway area of the patient is 149.7 + / -48.34 mm < 2 >, the air bag area S2 of the tracheal cannula is calculated, and S2 = S1-149.7 + / -48.34 mm < 2 >; 3, according to the tracheal catheter mode of the patient, the tracheal catheter air bag matched with the airway of the patient is selected.According to the method, it can be ensured that the airway of each patient can be effectively sealed when medical staff recommend to keep the pressure in the air bag within the normal range of 20-30 cm H2O according to the guide.

Description

technical field [0001] The invention relates to the technical field of tracheal intubation, in particular to a method for precise matching of tracheal intubation balloons for the airway of a patient. Background technique [0002] Tracheal intubation and invasive mechanical ventilation are commonly used life-saving treatment measures in the intensive care unit. The secretions from the respiratory tract of patients with mechanical ventilation can remain in the subglottis and on the air bag, and these secretions can flow along the air bag wall into the lower airway. This may occur. Microscopic aspiration, which is an important cause of ventilator-associated pneumonia (VAP); ventilator-associated pneumonia refers to tracheal intubation or tracheotomy patients receiving mechanical ventilation for 48 hours or weaning Pneumonia that occurs within 48 hours; it is a common serious complication in critically ill patients, and it is a common hospital-acquired infection, and the patient...

AI Technical Summary

Problems solved by technology

[0004] However, some scholars have investigated the clinical practice of endotracheal tube balloon pressure management and found that 24% of patients had endotracheal tube balloon pressure greater than 30 cmH 2 Only O can seal the airway, and many studies have confirmed that the air bag pressure of some patients is maintained at 20-30cmH 2 O cannot completely close the airway, the above reasons may be that the endotracheal tube balloon does not match the patient's airway

If the air bag is too large, the wall of the air bag may be folded to form folds; if the air bag is too small, the pressure of the air bag is 20-30cmH 2 0 cannot seal the airway; therefore, air bag selection that is too large or too small may cause air leakage and aspiration, leading to an increased risk of ventilator-associated pneumonia

[0005] Current international research recommends that the pressure in the air bag of the endotracheal tube be maintained at 20-30 cmH 2 0, but some patients have airway leaks

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