METHOD AND APPARATUS FOR VERIFYING DISCRIMINATING OF TACHYCARDIA EVENTS IN A MEDICAL DEVICE HAVING DUAL SENSING VECTORS

摘要

A method and medical device for detecting a cardiac event that includes sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector sensing a first interval and a second sensing vector simultaneously sensing a second, determining, for each of the first interval and the second interval, whether each beat of the plurality of beats is one of a match beat and a non-match beat, determining whether each beat of the plurality of beats is one of a high confidence beat and a low confidence beat, determining, for each of the first interval and the second interval, the number of beats determined to be both a non-match beat and a high confidence beat is greater than a non-match threshold, and determining whether to deliver therapy for the cardiac event in response to identifying of each of the first interval and the second interval as being one of shockable and not shockable.

主权项

1. A method of detecting a cardiac event in a medical device, comprising:
sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector sensing a first interval of the cardiac signal comprising a plurality of beats during a predetermined time period and a second sensing vector simultaneously sensing a second interval of the cardiac signal comprising a plurality of beats during the predetermined time period; determining, for each of the first interval and the second interval, whether each beat of the plurality of beats is one of a match beat and a non-match beat; determining whether each beat of the plurality of beats is one of a high confidence beat and a low confidence beat; determining, for each of the first interval and the second interval, the number of beats determined to be both a non-match beat and a high confidence beat is greater than a non-match threshold; identifying each of the first interval and the second interval as being one of shockable and not shockable in response to the number of beats identified as being both a non-match beat and a high confidence beat; and determining whether to deliver therapy for the cardiac event in response to identifying of each of the first interval and the second interval as being one of shockable and not shockable.