US Patent 7742807 Musical representation of cardiac markers

Cardiac electrical activity includes intrinsic signals as well as paced or stimulated signals. Waveforms of cardiac electrical activity may be detected by a variety of systems, including surface ECG systems and various implantable cardiac devices including implantable cardiac stimulation devices. Intrinsic cardiac signals and various cardiac conditions influence these waveforms in ways that can be identified using various detection criteria, and from which cardiac markers may be generated. Musical notations are linked to these cardiac markers as appropriate, and are sounded as a function of time to generate musical sound which is indicative of the patient's cardiac function.