Patent ID: 9629562
Date: 2017-04-25
CPC Classifications: A61B

Claim:
1. A method for determining an arrhythmia event for a patient, the method comprising: generating a plethysmographic signal for a patient from an optical signal generated by an optical sensor and processed by a processor, the optical sensor and the processor on a mobile plethysmographic device, the plethysmographic signal comprising a plurality of pulse waves; identifying at the processor a maximum peak value for each pulse wave of the plurality of pulse waves of the plethysmographic signal to generate a plurality of maximum values of the plethysmographic signal; calculating at the processor a plurality of time intervals between adjacent maximum values of the plethysmographic signal; establishing at the processor a threshold minimum time interval and a threshold maximum time interval for the plurality of time intervals; and determining at the processor an arrhythmia event for the patient based on an identification of a time interval that is above the threshold maximum time interval.