Patent ID: 11903700
Assignee: RDS
Field: Medical technology (Instruments)
Classification: CPC A  H | IPC A  H

Claim 4:
5. A method of measuring oxygen saturation in an individual, the method comprising the steps of:
measuring an electrocardiogram signal over multiple heart beats;
measuring with a device according to claim 1 one or more pulse oximetry signals over multiple heart beats such that the electrocardiogram signal and the one or more pulse oximetry signals are in time concordance over one or more heart beats;
comparing a portion of the electrocardiogram signal and the one or more pulse oximetry signals in time concordance over one or more heart beats to determine a constant component and a primary periodic component of each of the one or more pulse oximetry signals; and
determining oxygen saturation from the constant components and primary periodic components of the one or more pulse oximetry signals.