Leadless tissue stimulation systems and methods
First Claim
1. A method for stimulating cardiac muscle, said method comprising:
- implanting a receiver-stimulator at a cardiac stimulation site, wherein the receiver-stimulator is present in a sealed case; and
subcutaneously implanting a controller-transmitter at a location remote from the cardiac stimulation site, wherein the controller-transmitter is present in a sealed case separate from that of the receiver-stimulator and is configured to detect a pacing signal of a separate cardiac pacemaker having leads implanted in a right ventricle or right atrium;
wherein the controller-transmitter detects the pacing signal of the cardiac pacemaker; and
upon detecting the pacing signal, generates acoustic energy which is received by the receiver-stimulator and converted by the receiver-stimulator into cardiac stimulation energy based on both energy and signal information included in the acoustic energy.
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Accused Products
Abstract
Systems including an implantable receiver-stimulator and an implantable controller-transmitter are used for leadless electrical stimulation of body tissues. Cardiac pacing and arrhythmia control is accomplished with one or more implantable receiver-stimulators and an external or implantable controller-transmitter. Systems are implanted by testing external or implantable devices at different tissue sites, observing physiologic and device responses, and selecting sites with preferred performance for implanting the systems. In these systems, a controller-transmitter is activated at a remote tissue location to transmit/deliver acoustic energy through the body to a receiver-stimulator at a target tissue location. The receiver-stimulator converts the acoustic energy to electrical energy for electrical stimulation of the body tissue. The tissue locations(s) can be optimized by moving either or both of the controller-transmitter and the receiver-stimulator to determine the best patient and device responses.
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Citations
17 Claims
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1. A method for stimulating cardiac muscle, said method comprising:
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implanting a receiver-stimulator at a cardiac stimulation site, wherein the receiver-stimulator is present in a sealed case; and subcutaneously implanting a controller-transmitter at a location remote from the cardiac stimulation site, wherein the controller-transmitter is present in a sealed case separate from that of the receiver-stimulator and is configured to detect a pacing signal of a separate cardiac pacemaker having leads implanted in a right ventricle or right atrium; wherein the controller-transmitter detects the pacing signal of the cardiac pacemaker; and
upon detecting the pacing signal, generates acoustic energy which is received by the receiver-stimulator and converted by the receiver-stimulator into cardiac stimulation energy based on both energy and signal information included in the acoustic energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for stimulating cardiac muscle, said method comprising:
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implanting a receiver-stimulator at a cardiac stimulation site, wherein the receiver-stimulator is present in a sealed case; and subcutaneously implanting a controller-transmitter at a location remote from the cardiac stimulation site, wherein the controller-transmitter is present in a sealed case separate from that of the receiver-stimulator and is configured to detect a pacing signal of a separate cardiac pacemaker having leads implanted in a right ventricle or right atrium; wherein the controller-transmitter generates acoustic energy which is synchronized with the pacing signal of the cardiac pacemaker; and
whereinthe receiver-stimulator converts the acoustic energy into cardiac stimulation energy based on both energy and signal information included in the acoustic energy. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification