CARDIAC RHYTHM MANAGEMENT SYSTEM WITH NOISE DETECTOR
First Claim
Patent Images
1. A device for association with a heart using at least one electrode, the device comprising:
- a cardiac signal detector, configured to be coupled to the first electrode, and including a detector output providing a cardiac signal;
a signal processor circuit, configured to declare whether at least a portion of the cardiac signal is deemed noisy; and
wherein, when the cardiac signal is deemed noisy, the cardiac signal detector is then reconfigured to be coupled to a different second electrode for detecting depolarizations, and wherein the cardiac signal detector includes independent first and second sensing channels that are respectively coupled to the first and second electrodes for independently sensing a depolarization at each of the first and second electrodes to corroborate depolarizations sensed at the first electrode using corresponding depolarizations independently sensed at the second electrode.
0 Assignments
0 Petitions
Accused Products
Abstract
A system, method, or device determines whether noise is present on a sampled and/or digitized sensed intrinsic cardiac signal based on a moving count of turning/inflection points of the signal. If noise is detected, the manner in which the cardiac signal is acquired, or the manner in which the device operates in response to the acquired cardiac signal (or both) is altered to reduce the risk of erroneously detecting noise as a heart depolarization and, therefore, inappropriately triggering or withholding therapy.
-
Citations
21 Claims
-
1. A device for association with a heart using at least one electrode, the device comprising:
-
a cardiac signal detector, configured to be coupled to the first electrode, and including a detector output providing a cardiac signal; a signal processor circuit, configured to declare whether at least a portion of the cardiac signal is deemed noisy; and wherein, when the cardiac signal is deemed noisy, the cardiac signal detector is then reconfigured to be coupled to a different second electrode for detecting depolarizations, and wherein the cardiac signal detector includes independent first and second sensing channels that are respectively coupled to the first and second electrodes for independently sensing a depolarization at each of the first and second electrodes to corroborate depolarizations sensed at the first electrode using corresponding depolarizations independently sensed at the second electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A device for association with a heart using at least one electrode, the device comprising:
-
a cardiac signal detector coupled to the first electrode, and including a detector output providing a cardiac signal; means for determining whether a portion of the cardiac signal is deemed noisy; and wherein, if the cardiac signal is deemed noisy, the cardiac signal detector is coupled to a different second electrode for detecting depolarizations and wherein the cardiac signal detector includes independent first and second sensing channels that are respectively coupled to the first and second electrodes for independently sensing a depolarization at each of the first and second electrodes to corroborate depolarizations sensed at the first electrode using corresponding depolarizations independently sensed at the second electrode. - View Dependent Claims (17, 18)
-
-
19. A device for association with a heart using at least one electrode, the device comprising:
-
a cardiac signal detector coupled to the first electrode, and including a detector output providing a cardiac signal; a signal processor circuit configured to determine whether at least a portion of the cardiac signal is deemed to be noisy; and wherein, if the cardiac signal is deemed noisy, the cardiac signal detector is decoupled from the first electrode and instead coupled to a different second electrode for detecting depolarizations. - View Dependent Claims (20, 21)
-
Specification