Temporary electrode connection for wireless pacing systems
First Claim
1. A device, comprising:
- an implantable receiver-stimulator configured to be releasably connected to a delivery system to attach the receiver-stimulator to the heart of a patient, wherein the receiver-stimulator is configured to receive acoustic energy from a controller-transmitter and to convert the acoustic energy to electrical energy, wherein the receiver-stimulator includes a first electrode, a second electrode, and an electrical contact electrically connected to the first electrode, wherein the first and second electrodes are configured to deliver the electrical energy to the heart, and wherein the electrical contact is electrically connected to the delivery system when the receiver-stimulator is connected to the delivery system; and
a disconnect mechanism including a seal configured to electrically insulate the electrical contact from the patient to block a current path through the patient between the electrical contact and the second electrode when the receiver-stimulator is released from the delivery system.
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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.
162 Citations
8 Claims
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1. A device, comprising:
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an implantable receiver-stimulator configured to be releasably connected to a delivery system to attach the receiver-stimulator to the heart of a patient, wherein the receiver-stimulator is configured to receive acoustic energy from a controller-transmitter and to convert the acoustic energy to electrical energy, wherein the receiver-stimulator includes a first electrode, a second electrode, and an electrical contact electrically connected to the first electrode, wherein the first and second electrodes are configured to deliver the electrical energy to the heart, and wherein the electrical contact is electrically connected to the delivery system when the receiver-stimulator is connected to the delivery system; and a disconnect mechanism including a seal configured to electrically insulate the electrical contact from the patient to block a current path through the patient between the electrical contact and the second electrode when the receiver-stimulator is released from the delivery system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device, comprising:
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an implantable receiver-stimulator configured to be releasably connected to a delivery system to attach the receiver-stimulator to the heart of a patient, wherein the receiver-stimulator is configured to receive acoustic energy from a controller-transmitter and to convert the acoustic energy to electrical energy, wherein the receiver-stimulator includes a first electrode, a second electrode, and an electrical contact electrically connected to the first electrode, wherein the first and second electrodes are configured to deliver the electrical energy to the heart, and wherein the electrical contact is electrically connected to the delivery system when the receiver-stimulator is connected to the delivery system; and a disconnect mechanism configured to electrically disconnect the electrical contact from the first electrode to thereby block a current path for the converted electrical energy through the patient from the electrical contact to the second electrode when the receiver-stimulator is released from the delivery system.
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Specification