Patent ID: 7050853
Filing Date: 2006-05-23
Classification: A61B,A61N

Abstract:
1. A cardiac rhythm management device, comprising: one or more sensing channels for sensing intrinsic cardiac activity and for sensing evoked responses to paces; a pacing channel for delivering paces to a cardiac chamber; a controller for delivering paces to the cardiac chamber in accordance with a programmed pacing mode, the controller including a memory for program and data storage; wherein the controller is programmed to record physiological data from a sensing channel in memory such that older data is overwritten by newer data; wherein the controller is programmed to detect a death event if no intrinsic cardiac activity has been detected in a previous M second interval, if no evoked responses to paces have been detected for the previous N delivered paces, and if a pacing artifact is detected when a pace is delivered; and, wherein the controller is programmed to cease recording of physiological data upon detection of a death event.