MANAGED PACE RECHARGE IN A MULTIPOINT PACING SYSTEM

摘要

An apparatus comprises a stimulus circuit, a recharge circuit, a switch circuit, and a control circuit. The stimulus circuit provides electrical cardiac pacing stimulation to multiple combinations of a plurality of electrodes, and the electrical stimulation is selectively applied at the first electrode of the electrode combinations. The recharge circuit includes a recharge capacitor electrically coupled to the second electrode of the electrode combinations, and the switch circuit selectively enables electrode combinations for electrical coupling to the stimulus circuit and the recharge circuit. The control circuit includes a pacing activation sub-circuit that selectively initiates delivery of the electrical stimulation using multiple electrode combinations, and enables simultaneous delivery of pacing recharge energy from the recharge capacitor to the second electrode of multiple electrode combinations.

主权项

1. An apparatus for coupling to a plurality of electrodes implantable at a plurality of tissue sites of a heart chamber of a subject, the apparatus comprising:
a stimulus circuit configured to provide electrical cardiac pacing stimulation to multiple combinations of the plurality of electrodes, wherein an electrode combination includes at least a first electrode and a second electrode and the electrical stimulation is selectively applied at the first electrode of the electrode combinations; a recharge circuit including a recharge capacitor electrically coupled to the second electrode of the electrode combinations; a switch circuit configured to selectively enable electrode combinations for electrical coupling to the stimulus circuit and the recharge circuit; and a control circuit including a pacing activation sub-circuit configured to: selectively initiate delivery of the electrical stimulation using multiple electrode combinations; and enable at least partial simultaneous delivery of pacing recharge energy from the recharge capacitor to the second electrode of multiple electrode combinations.