COGNIS CRT-D
DevicePatients with existing or newly implanted COGNIS® CRT-D pulse generators (PG)are enrolled in the study. PG is modified by the download of investigational software called Sensor Research Device-1™ (SRD-1). The goal of the SRD-1 system is to collect sensor data without affecting the delivered CRT-D therapy. This is accomplished through the "conversion" of an implanted COGNIS PG into a SRD-1 PG by downloading investigational software. Only a market approved COGNIS model N119/N120/P107/P108 device may be converted to a SRD-1 investigational device. There will be no PG hardware changes resulting from the conversion.