Method and apparatus for determining potential onset of an acute medical condition
AssigneeResMed Sensor Technologies Limited
InventorsKatherine Kawecki, Christian Reeks
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Abstract
Disclosed is a method of managing risk, of a subject, of suffering an adverse condition relating to a physiological system of the subject. The method includes a. providing a wearable acoustic sensor, b. providing a data processor, and c. causing the processor to i. monitor the output from the sensor, ii. apply a predictive numerical model to generate a prediction, iii. compare the prediction with the sensor output, and iv. determine a response on the basis of the comparison.
Claims11
A method of managing risk, of a subject, of suffering an adverse respiratory condition relating to a physiological system of the subject, the method using a system, the system comprising a wearable acoustic sensor, the method comprising steps of:
- a) providing the subject with the wearable acoustic sensor, operatively configured to provide an output relating to sensed cyclical events in said physiological system;
- b) providing a data processor in data communication with the wearable acoustic sensor;
- and
- c) causing the data processor to:
- i) monitor the output from the wearable acoustic sensor relating to said sensed cyclical events in the physiological system, wherein the data processor receives an electronic data signal representative of the output from the wearable acoustic sensor;
- ii) apply a predictive numerical model comprising Extended Kalman Filtering (EKF) to generate, from output from the wearable acoustic sensor relating to an event in a most recently observed event cycle in the physiological system, a prediction of the output from the wearable acoustic sensor in relation to a corresponding event in a future cycle in the physiological system to be observed,
- iii) compare the prediction with the output from the wearable acoustic sensor relating to the corresponding event in the future cycle in the physiological system, when observed, and
- iv) execute an output response of the system based on the comparison, the output response comprising an operation of a device that provides a stimulation.
A wearable condition-management device wearable by a subject at risk of suffering an adverse respiratory condition relating to a physiological system of the subject, the device comprising:
- a) an acoustic sensor operatively configured to provide output relating to observed cyclical events in said physiological system, and
- b) a computer processor in data communication with the acoustic sensor, the computer processor being programmed to execute instructions causing it to:
- i) monitor output from the acoustic sensor relating to said observed cyclical events in the physiological system, wherein the computer processor receives an electronic data signal representative of the output from the wearable acoustic sensor,
- ii) apply a predictive numerical model comprising Extended Kalman Filtering (EKF) to generate, from output from the acoustic sensor relating to an event in a most recently observed event cycle in the physiological system, a prediction of output from the acoustic sensor in relation to a corresponding event in a future cycle in the physiological system to be observed,
- iii) compare the prediction with the output from the acoustic sensor relating to the corresponding event in the future cycle in the physiological system when observed, and
- iv) execute an output response of the device based on the comparison, the output response comprising a controlled operation that provides a stimulation.
Dependencies are inferred from the claim text.