JPWO2020171720A5 - - Google Patents

Claims (17)

1. A respiratory system for providing respiratory therapy to a patient, the system configured to adjust the flow rate of gas delivered to the patient according to patient inspiration and expiration,
a flow generator with a motor for generating a gas flow;
in electrical communication with one or more sensors;
causing an exhalation relief level setting to be displayed on a user interface of the respiratory system, the setting including a plurality of different exhalation relief levels;
receiving user input via the user interface to increase and/or decrease exhalation relief levels;
adjusting the flow rate based on the user input, wherein the user input is configured to enable adjustment of the flow rate based in part on the patient's inspiratory and expiratory cycles. and,
a controller configured to do
A system comprising: The user input turns the exhalation relief on and/or off and/or adjusts the magnitude of the exhalation relief to allow adjustment of the flow rate based in part on the patient's inspiratory and expiratory cycles. 2. The system of claim 1, configured to: said plurality of different exhalation relief levels comprise a plurality of categories including at least a low exhalation relief level and a high exhalation relief level; and/or said plurality of different exhalation relief levels comprise a range of numbers; and/or said plurality of 3. The system of claim 1 or 2, wherein the different exhalation relief levels comprise a sliding scale. The system of any one of claims 1-3, wherein the user input is received via buttons of the user interface. wherein the controller mitigates the adjustment based on the user input by comparing maximum and/or minimum flow rates measured by the one or more sensors to maximum and/or minimum flow rate thresholds; The system of any one of claims 1-4, further configured. The system of any one of claims 1-5, wherein the system is a high flow breathing system. 7. The system of claim 6, comprising an unsealed patient interface. 8. The system of claim 7, wherein the non-sealing patient interface comprises a non-sealing nasal cannula. The system of any one of claims 1-8, wherein the exhalation relief level influences negative feedback for regulation of the flow rate. such that the controller displays a maximum flow threshold setting and/or a minimum flow threshold setting on the user interface and receives a second user input to increase and/or decrease the maximum flow threshold and/or minimum flow threshold; A system according to any one of claims 5 to 9, further configured. such that the controller mitigates the adjustments with parameters determined in part based on maximum and/or minimum flow rates measured by the one or more sensors during the patient inspiration and expiration cycles. A system according to any one of claims 1 to 10, further comprising: A system according to any preceding claim, wherein the flow rate is regulated by outputting a motor control signal. 13. Any one of claims 1 to 12, wherein the adjustment comprises increasing the flow rate when the patient is breathing in and/or decreasing the flow rate when the patient is breathing out. The system described in paragraph. The cycle of patient inspiration and expiration is determined based on first and second inputs received by the controller, wherein the first and second inputs are characteristics or components of gas flow of the system. A system according to any one of claims 1 to 13, associated with the performance of wherein the first input corresponds to the flow rate from the one or more sensors and/or the second input is the pressure of the gas flow from the one or more sensors or the flow generator 15. The system of claim 14, corresponding to a speed of the motor of . A system according to any preceding claim, wherein said adjustment is performed iteratively. The system of any preceding claim, wherein the one or more sensors comprise an ultrasonic transducer assembly or a heated temperature sensing element.