Respiratory mechanics parameter detecting device and method based on forced oscillation and suitable for positive-pressure ventilation condition

Abstract

The invention relates to a respiratory mechanics parameter detecting device and method based on forced oscillation and suitable for the positive-pressure ventilation condition. The respiratory mechanics parameter detecting device comprises an oscillation pressure generating module, a signal collection module, a control processing unit and an air channel part. Under the control effect of a microprocessor, the oscillation pressure generating module generates oscillation signals with the stable amplitude through a function compensation method, effective complex frequency signals are synthesized through a time domain amplitude reduction method and act on an artificial airway, the signal collection module synchronously realizes continuous collection of airway pressure and flow signals, and thenthe control processing unit estimates respiratory mechanics parameters. The respiratory mechanics parameter detecting device based on forced oscillation and provided by the invention is suitable forthe positive-pressure ventilation condition, respiratory mechanics monitoring synchronized with mechanical ventilation treatment can be achieved, the patient treatment situation in the positive-pressure ventilation process is monitored advantageously, and thus reference and help are provided for a doctor to adjust a treatment scheme.

Description

technical field [0001] The invention belongs to the field of equipment detection and signal processing methods, and in particular relates to a device for detecting respiratory mechanical parameters based on forced oscillation under positive pressure ventilation conditions, which is used to detect respiratory mechanical parameters by using a forced oscillation method while performing positive pressure ventilation of a ventilator. It plays an important role in monitoring the therapeutic effect of mechanical ventilation on patients. Background technique [0002] Respiratory mechanical parameters are important physiological parameters to evaluate the state of the human respiratory system, and are helpful for the diagnosis, prevention and treatment of respiratory diseases. Monitoring of respiratory mechanical parameters during mechanical ventilation is of great significance for doctors to observe patients' conditions and optimize treatment plans . The current method for detectin...

AI Technical Summary

Problems solved by technology

The blocking method must block the ventilation and cannot achieve real-time monitoring. The method of parameter estimation based on the respiratory mechanics model is more suitable for patients without spontaneous breathing. Once the patient has spontaneous breathing, invasive measurement of esophageal pressure instead of pleural cavity pressure is required to complete the estimation. , invasive and not real-time

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