Patent ID: 7277750
Filing Date: 2007-10-02
Classification: A61N

Abstract:
1. A cardiac rhythm management system comprising: a sensing circuit to sense a cardiac signal; a pacing circuit to deliver an anti-tachycardia pacing (ATP); a defibrillation circuit to deliver a shock, the defibrillation circuit including: a ventricular tachycardia (VT) detector to detect a VT based on at least the cardiac signal; a VT verification module programmed to receive a first VT verification command and a second VT verification command and perform a VT verification test to determine whether the VT sustains based on at least the cardiac signal after one of the first and second VT verification commands is received; a controller coupled to the pacing circuit, the defibrillation circuit, the VT detector, and the VT verification module, the controller programmed to receive an ATP activation command and an ATP deactivation command, activate an ATP before charge (ATP-BC) mode in response to the ATP activation command, and deactivate the ATP-BC mode in response to the ATP deactivation command, the controller including: a user input including an ATP activation switch to receive a user command and produce one of the ATP activation command and the ATP deactivation command based on the user command.