Leadless cardiac stimulation systems
First Claim
1. A system comprising:
- a wireless electrostimulation electrode assembly comprising electrostimulation electrodes, the wireless electrostimulation electrode assembly sized and shaped for implant at a myocardial site using a percutaneous, transluminal, catheter delivery system, the wireless electrostimulation electrode assembly configured to receive electromagnetic energy from a source outside the myocardium;
a source of electromagnetic energy sized and shaped for placement within a person'"'"'s body outside the myocardium and separate and detached from the wireless electrostimulation electrode assembly, the source of electromagnetic energy including or conductively coupled to sensing electrodes that are configured to sense a locally measured electrogram to time an electrostimulation of the heart by wirelessly sending a command to the wireless electrostimulation electrode assembly to electrostimulate the myocardium;
wherein the source of electromagnetic energy comprises an electronic control circuit, a transmit circuit, a battery, and an antenna; and
wherein the locally measured electrogram is sensed by the sensing electrodes included in or conductively coupled to the source of electromagnetic energy.
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Accused Products
Abstract
Various configurations of systems that employ leadless electrodes to provide pacing therapy are provided. In one example, a system that provides multiple sites for pacing of myocardium of a heart includes wireless pacing electrodes that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Each of the electrodes contains a source of electrical energy for pacing the myocardium and is adapted to receive electromagnetic energy from a source outside the myocardium. The system also includes a source adapted for placement outside the myocardium and that uses locally measured electrocardiograms to synchronize pacing of the heart by sending electromagnetic commands to the electrodes to pace the myocardium surrounding the electrodes. Also disclosed is various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
329 Citations
21 Claims
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1. A system comprising:
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a wireless electrostimulation electrode assembly comprising electrostimulation electrodes, the wireless electrostimulation electrode assembly sized and shaped for implant at a myocardial site using a percutaneous, transluminal, catheter delivery system, the wireless electrostimulation electrode assembly configured to receive electromagnetic energy from a source outside the myocardium; a source of electromagnetic energy sized and shaped for placement within a person'"'"'s body outside the myocardium and separate and detached from the wireless electrostimulation electrode assembly, the source of electromagnetic energy including or conductively coupled to sensing electrodes that are configured to sense a locally measured electrogram to time an electrostimulation of the heart by wirelessly sending a command to the wireless electrostimulation electrode assembly to electrostimulate the myocardium; wherein the source of electromagnetic energy comprises an electronic control circuit, a transmit circuit, a battery, and an antenna; and wherein the locally measured electrogram is sensed by the sensing electrodes included in or conductively coupled to the source of electromagnetic energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification