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

Claim 0:
1. A device for reducing motion artefacts in a detection of at least one of pulse or pulse-related information of a patient, the device comprising:
an accelerometer signal input configured to obtain 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;
wherein the accelerometer signal input is configured to measure 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;
a pulse signal input configured to obtain a pulse-related signal of the patient from a pulse signal sensor;
a patient information input configured to obtain patient information from a patient information source;
a display;
one or more computer processors;
and a non-transitory storage medium storing instructions that, when executed by the one or more computer processors, cause the one or more computer processors to:
generate 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;
extract one or more features from the accelerometer signal by comparing the accelerometer signal to the generated template accelerometer signal;
detect 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.