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 inflections of the sensed cardiac signals;
generating a pulse amplitude threshold in response to the determined inflections; and
determining whether the inflections are indicative of noise in response to the determined inflections and the generated pulse amplitude threshold.
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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 inflections of the sensed cardiac signals, generating a pulse amplitude threshold in response to the determined inflections, and determining whether the inflections are indicative of noise in response to the determined inflections and the generated pulse amplitude threshold.
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21 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 inflections of the sensed cardiac signals;
generating a pulse amplitude threshold in response to the determined inflections; and
determining whether the inflections are indicative of noise in response to the determined inflections and the generated pulse amplitude threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. 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 inflections of the sensed cardiac signals;
generating a pulse amplitude threshold in response to the determined inflections; and
determining the inflections are not indicative of noise in response to the pulse amplitude threshold being less than a pulse threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A 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 inflections of the sensed cardiac signals;
generating a pulse amplitude threshold in response to the determined inflections; and
determining whether the inflections are indicative of noise in response to the determined inflections and the generated pulse amplitude threshold.
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Specification