Apparatus and method for automatically sensing threshold...

Surgery – Diagnostic testing – Cardiovascular

Reexamination Certificate

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Reexamination Certificate

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06865414

ABSTRACT:
An implantable programmable cardiac stimulation device and associated method for differentiating between normal sinus events and ectopic beats. The stimulation device monitors the sensing thresholds of sinus and non-sinus cardiac events, and stores a history of these sensing thresholds along with temporal data for accurate event detection. The stimulation device further provides accurate and appropriate detection of sensed events including P-waves, non-conducted PACs, and conducted PACs and thus verifies correct detection of PVCs and R-waves. Furthermore, the present invention provides a history record of ectopic events, distinguished by sensing thresholds and timing intervals, giving a valuable diagnostic tool to the physician in optimizing rhythm management therapy. In addition, the stimulation device allows the sensitivity threshold to be set based on a single cardiac cycle and past history.

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