A closed-loop expectoration method and system for automatic titration of expectoration pressure

Abstract

The invention relates to a closed-loop expectoration method for automatically titrating the pressure of expectoration, comprising S1, setting the reference value C2 of the user's negative pressure phase flow-volume ring area F-V ring area; S2, calculating the user's The actual value R2 of the negative pressure phase F-V ring area; S3, compare the reference value C2 of the negative pressure phase F-V ring area, and the actual value R2 of the negative pressure phase flow-volume ring area to adjust the negative phase pressure E-P and / or normal phase pressure I‑P. The present invention also proposes a closed-loop expectoration system for automatically titrating the pressure of expectoration, including: a reference value setting module, which sets the reference value C2 of the negative pressure phase flow-volume ring area F-V ring area; the actual value calculation module , monitor and calculate the actual value R2 of the negative pressure phase F-V ring area; the comparison module compares the reference value C2 and the actual value R2; the adjustment module adjusts the negative phase pressure E-P and the positive phase based on the results of the comparison module Pressure I‑P. The expectoration method and system of the present invention ensure safer and more effective expectoration.

Description

technical field [0001] The present invention relates to an expectoration machine, and more specifically, to a mechanical inflation and exhaust method and system for automatic closed-loop titration of expectoration pressure. Background technique [0002] Cough is a physiological mechanism for normal people to clear respiratory airway secretions. However, for some patients with cough dysfunction diseases, such as patients with neuromuscular diseases with reduced cough force and patients with mechanical ventilation intubation, it becomes very necessary to use some kind of external force to clear airway secretions. [0003] A mechanical inflation-exhaust (MI-E) device, commonly known as an expectorator, is a well-known device used to assist patients with an ineffective cough to clear their airways of noxious secretions. This device simulates the coughing physiological mechanism of normal people, and controls the pipeline connected to the patient (mask connection end, mouthpiece...

AI Technical Summary

Problems solved by technology

[0013] Aiming at the defect that the expectoration mode of the current MIE device must rely on user experience and repeated trial and error to titrate the expectoration pressure, the present invention proposes a closed-loop expectoration method that automatically titrates the expectoration pressure

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