Leadless cardiac stimulation systems
First Claim
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1. A leadless tissue excitation system comprising:
- a control unit having an antenna to produce a magnetic field; and
one or more wireless direct activation electrode assemblies operable to receive energy from the magnetic field and to deliver excitation pulses in response to the field.
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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 electrode assemblies that are implantable at sites proximate the myocardium using a percutaneous, transluminal, catheter delivery system. Also disclosed are various configurations of such systems, wireless electrode assemblies, and delivery catheters for delivering and implanting the electrode assemblies.
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Citations
28 Claims
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1. A leadless tissue excitation system comprising:
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a control unit having an antenna to produce a magnetic field; and
one or more wireless direct activation electrode assemblies operable to receive energy from the magnetic field and to deliver excitation pulses in response to the field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A leadless pacing electrode assembly comprising:
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a passive wireless receiver; and
two or more electrodes attached to the passive wireless receiver to generate an excitation pulse when the passive wireless receiver receives energy from a magnetic field. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for providing an excitation pulse via wireless implantable electrode assemblies, comprising:
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providing a control unit having an antenna in a first location to produce a magnetic field;
providing one or more wireless direct activation electrode assemblies in a second location to be subjected to the magnetic field; and
energizing the antenna to create a magnetic field around the one or more wireless direct activation electrode assemblies to create an excitation pulse. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A leadless pacing electrode assembly comprising:
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a passive wireless receiver;
a pair of spaced electrodes; and
means for providing an excitation pulse between the pair of spaced electrodes.
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Specification