Patent ID: 8965504
Filing Date: 2015-02-24
Classification: A61N

Abstract:
1. An apparatus comprising: an implantable sensor circuit configured to generate a first sensor signal, different from an intrinsic electrical cardiac signal, representative of mechanical activation of a first chamber of a heart of a subject and a second sensor signal, also different from an intrinsic electrical cardiac signal, representative of mechanical activation of a second chamber of the heart; a chamber synchrony measurement circuit configured to generate a measure of synchrony of the mechanical activations of the first heart chamber and the second heart chamber using the first and second sensor signals; a tachyarrhythmia detector circuit configured to detect tachyarrhythmia using a sensed intrinsic electrical cardiac signal; and a control circuit communicatively coupled to implantable sensor circuit, the chamber synchrony measurement circuit, and the tachyarrhythmia detector circuit, wherein the control circuit is configured to: