Method and system for identifying a potential lead failure in an implantable medical device
First Claim
1. A method for detecting potential failures by an implantable medical lead, comprising:
- sensing a first signal over a first channel between a first combination of electrodes on the lead;
sensing a second signal from a second channel between a second combination of electrodes on the lead;
comparing a first cardiac rate of the first signal to a second cardiac rate of the second signal;
determining if the first and second signals are physiologic if the first cardiac rate is approximately equal to the second cardiac rate;
determining whether at least one of the first and second signals is representative of a potential failure in the lead as a function of the rate comparison and the physiologic determination; and
identifying a failure and the electrode associated with the failure based on which of the first and second sensed signals is representative of the potential failure.
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Abstract
A method for detecting potential failures by a lead of an implantable medical device is provided. The method includes sensing a first signal over a first channel between a first combination of electrodes on the lead and sensing a second signal from a second channel between a second combination of electrodes on the lead. The method determines whether at least one of the first and second signals is representative of a potential failure in the lead and identifies a failure and the electrode associated with the failure based on which of the first and second sensed signals is representative of the potential failure. Optionally, when the first and second sensed signals are both representative of the potential failure, the method further includes determining whether the first and second sensed signals are correlated with one another. When the first and second sensed signals are correlated, the method declares an electrode common to both of the first and second combinations to be associated with the failure.
35 Citations
13 Claims
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1. A method for detecting potential failures by an implantable medical lead, comprising:
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sensing a first signal over a first channel between a first combination of electrodes on the lead; sensing a second signal from a second channel between a second combination of electrodes on the lead; comparing a first cardiac rate of the first signal to a second cardiac rate of the second signal; determining if the first and second signals are physiologic if the first cardiac rate is approximately equal to the second cardiac rate; determining whether at least one of the first and second signals is representative of a potential failure in the lead as a function of the rate comparison and the physiologic determination; and identifying a failure and the electrode associated with the failure based on which of the first and second sensed signals is representative of the potential failure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for detecting potential failures by an implantable medical lead, comprising:
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sensing a first signal over a first channel between a first combination of electrodes on the lead; determining whether the first signal is representative of a potential failure in the lead; obtaining a secondary indicator of heart condition; and utilizing the secondary indicator to confirm an arrhythmia of the heart when the determining operation identifies the lead to include the potential failure. - View Dependent Claims (11, 12, 13)
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Specification