Closed-loop expectoration method and system for automatically titrating expectoration pressure

Abstract

The invention relates to a closed-loop expectoration method for automatically titrating expectoration pressure. The method comprises the following steps: S1, setting a reference value C2 of negative pressure phase flow-volume ring area namely F-V ring area of a user; S2, using an actual value R2 of the negative pressure phase F-V ring area of the computer user; and S3, comparing the reference value C2 of the negative pressure phase F-V ring area with the actual value R2 of the negative pressure phase flow-volume ring area to adjust negative phase pressure E-P and / or positive phase pressure I-P. The invention also provides a closed-loop expectoration system for automatically titrating expectoration pressure. The system comprises a reference value setting module, a real value calculation module, a comparison module and an adjustment module, wherein the reference value setting module sets the reference value C2 of the negative pressure phase flow-volume ring area namely the F-V ring area,the real value calculation module monitors and calculates the actual value R2 of the negative pressure phase F-V ring area, the comparison module compares the reference value C2 with the actual valueR2, and the adjustment module adjusts the negative phase pressure E-P and the positive phase pressure I-P based on the consequence from the comparison module. The expectoration method and system guarantee safer and 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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