Temporary electrode connection for wireless pacing systems
First Claim
1. A device, comprising:
- a receiver-stimulator implantable in the heart of a patient using a delivery system and configured to receive controlled acoustic energy from a controller-transmitter and to convert the acoustic energy to electrical energy, the receiver-stimulator comprising;
at least two electrodes configured to deliver electrical energy;
one or more temporary electrical connection(s) between the electrode(s) and the delivery system; and
a disconnect mechanism to disconnect the temporary electrical connection;
wherein the temporary electrical connection(s) is configured to be connected to an external monitor to determine an efficiency of conversion of acoustic energy to electrical stimulation energy at the location by comparing a level of the delivered electrical energy against the acoustic energy transmitted by the controller-transmitter.
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Accused Products
Abstract
Delivery of an implantable wireless receiver-stimulator (R-S) into the heart using delivery catheter is described. R-S comprises a cathode and an anode and wirelessly receives and converts energy, such as acoustic ultrasound energy, to electrical energy to stimulate the heart. Conductive wires routed through the delivery system temporarily connect R-S electrodes to external monitor and pacing controller. R-S comprises a first temporary electrical connection from the catheter to the cathode, and a second temporary electrical connection from the catheter to the anode. Temporary electrical connections allow external monitoring of heart'"'"'s electrical activity as sensed by R-S electrodes to determine tissue viability for excitation as well as to assess energy conversion efficiency.
159 Citations
25 Claims
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1. A device, comprising:
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a receiver-stimulator implantable in the heart of a patient using a delivery system and configured to receive controlled acoustic energy from a controller-transmitter and to convert the acoustic energy to electrical energy, the receiver-stimulator comprising; at least two electrodes configured to deliver electrical energy; one or more temporary electrical connection(s) between the electrode(s) and the delivery system; and a disconnect mechanism to disconnect the temporary electrical connection; wherein the temporary electrical connection(s) is configured to be connected to an external monitor to determine an efficiency of conversion of acoustic energy to electrical stimulation energy at the location by comparing a level of the delivered electrical energy against the acoustic energy transmitted by the controller-transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A catheter-based delivery system for implantation of a receiver-stimulator into the heart of a patient, comprising:
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a catheter assembly having a proximal end and a distal end, the catheter assembly comprising; a receiver-stimulator detachably attached at the distal end of the catheter assembly, the receiver-stimulator configured to convert received acoustic energy from a controller-transmitter to electrical energy, wherein said receiver-stimulator comprises a cathode and an anode, both configured to be in electrical contact with the patient for stimulating the heart; a first temporary electrical connection between the cathode and the catheter assembly, the electrical connection extending through the catheter assembly; a disconnect mechanism to disconnect the first temporary electrical connection; and
an indifferent electrode, the indifferent electrode in electrical contact with the patient;wherein the cathode and the indifferent electrode are configured to monitor heart electrical activity and to stimulate the heart to determine an efficiency of conversion of acoustic energy to electrical stimulation energy at the location that is determined to be excitable by comparing a level of the delivered electrical energy against the acoustic energy transmitted by the controller-transmitter. - View Dependent Claims (19, 20, 21)
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22. A method for determining the efficiency of operation of a wireless tissue stimulation system, comprising:
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transmitting energy from a controller-transmitter towards an implantable receiver-stimulator comprising a cathode stimulation electrode and an anode stimulation electrode, wherein the receiver-stimulator is configured to be mounted on a catheter assembly, and wherein the catheter assembly is configured to implant the receiver-stimulator; and measuring electrical energy converted by the receiver-stimulator from the transmitted energy;
wherein the measuring comprises analyzing an electrogram between two temporary electrical connections connected to the two stimulation electrodes of the receiver stimulator;
determining an efficiency of conversion of acoustic energy to electrical stimulation energy at the location that is determined to be excitable by comparing a level of the delivered electrical energy against the acoustic energy transmitted by the controller-transmitter and correlating the efficiency of conversion with the likelihood of pacing of the heart issue.
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23. A method for determining the efficiency of operation of a wireless tissue stimulation system, comprising:
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transmitting energy from a controller-transmitter towards an implantable receiver stimulator comprising a cathode stimulation electrode and an anode stimulation electrode, wherein the receiver-stimulator is configured to be mounted on a catheter assembly, and wherein the catheter assembly is configured to implant the receiver-stimulator; and measuring electrical energy converted by the receiver-stimulator from the transmitted energy;
wherein the measuring comprises analyzing an electrogram between a temporary electrical connection connected to at least one of the two stimulation electrodes of the receiver stimulator and an indifferent electrode;
determining an efficiency of conversion of acoustic energy to electrical stimulation energy at the location that is determined to be excitable by comparing a level of the delivered electrical energy against the acoustic energy transmitted by the controller-transmitter and correlating the efficiency of conversion with the likelihood of pacing of the heart issue. - View Dependent Claims (24, 25)
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Specification