Method and apparatus for detecting arrhythmias in a medical device
First Claim
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 cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event different from the first cardiac event; and
if the cardiac signals are one of the first cardiac event and the second cardiac event, confirming the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of the first cardiac event and the second cardiac event to obtain a confirmation based on a first confirming process and a second confirming process different from the first confirming process.
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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, and determining whether the sensing of cardiac signals along the first sensing vector and along the second sensing vector is corrupted by noise. If the cardiac signals sensed along both the first sensing vector and the second sensing vector are not corrupted by noise, a determination is made as to whether the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event. The determination of whether the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event is then confirmed.
176 Citations
20 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 cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event different from the first cardiac event; and if the cardiac signals are one of the first cardiac event and the second cardiac event, confirming the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of the first cardiac event and the second cardiac event to obtain a confirmation based on a first confirming process and a second confirming process different from the first confirming process. - 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 cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event different from the first cardiac event; if the cardiac signals are one of the first cardiac event and the second cardiac event, confirming the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of the first cardiac event and the second cardiac event to obtain a confirmation based on a first confirming process and a second confirming process different from the first confirming process; determining the cardiac signals associated with sensing along both the first sensing vector and the second sensing vector as corresponding to the first cardiac event based, at least in part, on the cardiac signals sensed along both the first sensing vector and the second sensing vector being confirmed as corresponding to the first cardiac event; determining the cardiac signals associated with sensing along both the first sensing vector and the second sensing vector as not corresponding to the first cardiac event in response to the cardiac signals sensed along one of the first sensing vector and the second sensing vector not being confirmed as corresponding to the first cardiac event; identifying the cardiac signals associated with sensing along the first sensing vector as corresponding to the second cardiac event in response to the cardiac signals sensed along the first sensing vector being confirmed as corresponding to the second cardiac event and as not corresponding to the second cardiac event in response to the cardiac signals sensed along the first sensing vector not being confirmed as corresponding to the second cardiac event; identifying the cardiac signals associated with sensing along the second sensing vector as corresponding to the second cardiac event in response to the cardiac signals sensed along the second sensing vector being confirmed as corresponding to the second cardiac event and as not corresponding to the second cardiac event in response to the cardiac signals sensed along the second sensing vector not being confirmed as corresponding to the second cardiac event; and delivering therapy based, at least in part, on the determining steps and the identifying steps. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A non-transitory computer readable medium having computer executable instructions for performing a method 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 cardiac signals sensed along the first sensing vector and along the second sensing vector are one of a first cardiac event and a second cardiac event different from the first cardiac event; and if the cardiac signals are one of the first cardiac event and the second cardiac event, confirming the cardiac signals sensed along the first sensing vector and along the second sensing vector are one of the first cardiac event and the second cardiac event to obtain a confirmation based on a first confirming process and a second confirming process different from the first confirming process.
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Specification