METHOD AND APPARATUS FOR DETECTING ARRHYTHMIAS IN A MEDICAL DEVICE
First Claim
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1. A medical device for determining oversensing of cardiac signals, comprising:
- a housing containing electronic circuitry;
an electrode coupled to the electronic circuitry to sense cardiac signals; and
a processor, positioned within the housing, to determine an oversensing characteristic associated with the cardiac signals sensed during a predetermined sensing window, and to identify oversensing in response to the determined oversensing characteristic.
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Abstract
A method and apparatus for determining oversensing of cardiac signals that includes a housing containing electronic circuitry, an electrode coupled to the electronic circuitry to sense cardiac signals, and a processor, positioned within the housing, to determine an oversensing characteristic associated with the cardiac signals sensed over a predetermined sensing window, and to identify oversensing in response to the determined oversensing characteristic.
128 Citations
20 Claims
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1. A medical device for determining oversensing of cardiac signals, comprising:
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a housing containing electronic circuitry; an electrode coupled to the electronic circuitry to sense cardiac signals; and a processor, positioned within the housing, to determine an oversensing characteristic associated with the cardiac signals sensed during a predetermined sensing window, and to identify oversensing in response to the determined oversensing characteristic. - View Dependent Claims (2, 3)
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4. The device of 1, wherein determining an oversensing characteristic includes determining a first oversensing characteristic and a second oversensing characteristic, the first oversensing characteristic corresponding to a morphology of the sensed cardiac signals sensed during a predetermined sensing window, and the second oversensing characteristic corresponding to RR-intervals associated with the sensed cardiac signals.
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5. A method of determining oversensing in a medical device, comprising:
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sensing cardiac signals; determining an oversensing characteristic associated with the cardiac signals sensed during a predetermined sensing window; and identifying oversensing in response to the determined oversensing characteristic. - View Dependent Claims (6, 7)
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8. The method of 5 wherein determining an oversensing characteristic includes determining a first oversensing characteristic and a second oversensing characteristic, the first oversensing characteristic corresponding to a morphology of the sensed cardiac signals sensed during a predetermined sensing window, and the second oversensing characteristic corresponding to RR-intervals associated with the sensed cardiac signals.
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9. A method of determining oversensing 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 are reliable; determining whether the cardiac signals sensed along the second sensing vector are reliable; determining an oversensing characteristic associated with the cardiac signals sensed during a predetermined sensing window; and identifying oversensing in response to the determined oversensing characteristic. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification