title: An implantable, externally powered radiotelemetric system for long-term ECG and heart-rate monitoring.
abstract: An externally inductive powered implantable ECG radiotelemetry unit has been developed for continuous long-term measurements of cardiophysiological changes following administration of cardiotoxic drugs. The power density distribution (320 kHz) inside the cage has been measured to be 3-11 mW/cm2. The implantable unit has a volume of 38 X 22 X 8 mm and a mass of 9 g, and has been tolerated by the animal (guinea pig) during a continuous registration period of 6 months.
mesh_terms: D000818:Animals; D004562:Electrocardiography; D004567:Electrodes, Implanted; D006168:Guinea Pigs; D006339:Heart Rate; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D013686:Telemetry / Q000295:instrumentation*