METHOD AND APPARATUS FOR DETECTING ARRHYTHMIAS IN A MEDICAL DEVICE
First Claim
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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 and a second sensing vector;
determining whether the first sensing vector and the second sensing vector is corrupted by noise; and
determining, in response to one of the first sensing vector and the second sensing vector being corrupted by noise, whether the other of the first sensing vector and the second sensing vector is one of a first cardiac event and a second cardiac event different from the first cardiac event.
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Abstract
A method of detecting a cardiac event in a medical device that includes sensing cardiac signals from a plurality of electrodes forming a first sensing vector and a second sensing vector, determining whether the first sensing vector and the second sensing vector is corrupted by noise, and determining, in response to one of the first sensing vector and the second sensing vector being corrupted by noise, whether the other of the first sensing vector and the second sensing vector is one of a first cardiac event and a second cardiac event different from the first cardiac event.
68 Citations
22 Claims
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1. A method of detecting a cardiac event in a medical device, comprising:
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sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector;
determining whether the first sensing vector and the second sensing vector is corrupted by noise; and
determining, in response to one of the first sensing vector and the second sensing vector being corrupted by noise, whether the other of the first sensing vector and the second sensing vector is one of a first cardiac event and a second cardiac event different from the first cardiac event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of detecting a cardiac event in a medical device, comprising:
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sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector;
determining whether the first sensing vector and the second sensing vector is corrupted by noise;
determining, in response to the first sensing vector being corrupted by noise and the second sensing vector not being corrupted by noise, whether RR-intervals associated with the second sensing vector are regular;
determining the second sensing vector is the first cardiac event in response to the RR-intervals not being regular and is the second cardiac event in response to the RR-intervals being regular; and
determining, in response to the second sensing vector being the first cardiac event, whether the second sensing vector is within a first event threshold. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of detecting a cardiac event in a medical device, comprising:
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sensing cardiac signals from a plurality of electrodes, the plurality of electrodes forming a first sensing vector and a second sensing vector;
determining whether the first sensing vector and the second sensing vector is corrupted by noise;
determining, in response to the first sensing vector being corrupted by noise and the second sensing vector not being corrupted by noise, whether RR-intervals associated with the second sensing vector are regular;
determining the second sensing vector is the first cardiac event in response to the RR-intervals not being regular and is the second cardiac event in response to the RR-intervals being regular;
determining, in response to the second sensing vector being the first cardiac event, whether the second sensing vector is within a first event threshold; and
determining, in response to the second sensing vector being the second cardiac event, whether the second sensing vector is within a second event threshold. - View Dependent Claims (19, 20, 21, 22)
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Specification