Morphology based arrhythmia detection

Surgery – Diagnostic testing – Cardiovascular

Reexamination Certificate

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Reexamination Certificate

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07930020

ABSTRACT:
A medical device system and associated method sample an EGM signal over a processing window having a predetermined time duration. A number of morphology metrics are determined from the sampled EGM signal, and a heart rhythm is detected in response to the morphology metrics without determining depolarization intervals. The morphology metrics include metrics determined from a slope signal derived from the EGM signal in one embodiment.

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International Search Report, PCT/US2008/059699, Jan. 8, 2008, 6 Pages.

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