Patent ID: 6937901
Filing Date: 2005-08-30
Classification: A61N

Abstract:
1. A cardiac rhythm management device, comprising: one or more sensing channels, each channel comprising an electrode connected to a sense amplifier for generating sense signals representing electrical activity in a heart chamber; a plurality of pacing channels, each channel comprising electrode connected to a pulse generator that is separate from each other channel pulse generator, each channel for delivering paces to a selected heart chamber; a controller for controlling the delivery of pacing pulses by a selected pacing configuration in accordance with a programmed pacing mode associated with the pacing configuration, wherein the pacing configuration specifies which pacing channels are to be used for delivery of pacing pulses; and, wherein the controller is programmed to: perform a capture verification test at a selected time to test a selected pacing channel for presence or loss of capture during a pacing pulse, the capture verification test being performed by detecting whether an evoked response occurs during a capture detection window following the output of a pacing pulse; and, switch from the selected pacing configuration and associated pacing mode to a next pacing configuration and associated pacing mode contained in an ordered list upon detection of a loss of capture in a pacing channel making up the selected pacing configuration, wherein the next pacing configuration does not include the pacing channel in which the loss of capture was detected.