Patent ID: 11865259
Assignee: TELESAIR, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A device for respiratory therapy, wherein the device is configured with at least two operating modes, and the at least two operating modes comprise a first operating mode for providing high-flow nasal cannula (HFNC) support for a patient and a second operating mode for providing non-invasive ventilation (NIV) support or invasive ventilation (INV) support for the patient;
the device comprises a memory stored with instructions and a processor, the processor is configured to call and run the instructions stored in the memory to execute operations of:
obtaining a Respiratory Rate-Oxygenation (ROX) index based on first parameters; and
triggering mode switching of the device according to the ROX index and a preset triggering strategy for switching the operating mode of the device;
wherein the device is provided with humidification components configured for humidifying a gas flow delivered to the patient and a flow sensor configured for measuring a flow rate of the gas flow, the humidification components comprise a temperature sensor and a heating element connected to the temperature sensor, and the temperature sensor is configured to measure a temperature of the heating element when the device is operating in the first operating mode or the second operating mode, and the temperature of the heating element is adjustable based on the flow rate;
wherein the processor is further configured to call and run the instructions stored in the memory to execute operations of:
adjusting the temperature of the heating element to a first temperature value by the following formula:

Theating element(t)=an·Q(t)n+an-1·Q(t)n-1+an-2·Q(t)n-2+ . . . +a1·Q(t)+a0 

wherein Theating element(t) is a temperature of the heating element at time t; Q(t) is a flow rate of the gas flow going through the chamber at time t before heating and humidification; an, an-1, an-2, . . . a1, a0 are coefficients of the formula; and n is a positive integer;
the coefficients of the formula are obtained by fitting experimental data of a series of experiments and are pre-stored in the memory.