Patent ID: 11957454
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 9:
10. A method for reducing motion artefacts in detection of at least one of pulse or pulse-related information of a patient, the method comprising:
obtaining an accelerometer signal acquired by an array of accelerometer sensors arranged at skin of the patient;
wherein the accelerometer sensors are configured to directly contact the skin via an adhesive layer or a fastening strap;
where the accelerometer sensors are mechanically decoupled in at least one direction;
measuring a skin surface acceleration with the accelerometer sensors;
wherein the accelerometer signal input is configured to combine signals from the array of accelerometer sensors to obtain the accelerometer signal from the skin surface acceleration;
obtaining a pulse-related signal of the patient from a pulse signal sensor;
obtaining patient information from a patient information source;
generating, by one or more computer processors, a template accelerometer signal that models accelerometer-based pulse palpation using the pulse-related signal as a reference signal and further using the patient information and context information indicating context of the acquisition of the accelerometer signal;
extracting, by the one or more computer processors, one or more features from the accelerometer signal by comparing the accelerometer signal to the generated template accelerometer signal;
detecting, by the one or more computer processors, the pulse and pulse strength of the patient from the one or more extracted features;
and display on the display a presence of the pulse and the pulse strength.