Patent ID: 9138596
Filing Date: 2015-09-22
Classification: A61B,A61N

Abstract:
1. A cardiac rhythm management system for stimulating a heart having photosensitive tissue, the system comprising: a light emitting device configured to emit light having frequency characteristics suitable for depolarization of the photosensitive tissue; a tachyarrhythmia detection and classification circuit adapted to detect tachyarrhythmia using a ventricular rate and a plurality of tachyarrhythmia rate zones each including a threshold rate and classify the detected tachyarrhythmia using one or more of an atrial rate, the ventricular rate, an onset rate of the detected tachyarrhythmia, a stability parameter indicative of a degree of variability of the ventricular rate, and a correlation coefficient representative of a correlation between a cardiac signal waveform sensed during the detected tachyarrhythmia and a template waveform; and a control circuit coupled to the light emitting device and the tachyarrhythmia detection and classification circuit, the control circuit adapted to control the emission of the light for a period of time to depolarize the photosensitive tissue in response to the detected tachyarrhythmia being classified as a type to be terminated.