Electrode structures and methods for their use in cardiovascular reflex control
First Claim
1. A system, comprising:
- an implantable baroreceptor activation device including an electrode, the device adapted to be implanted such that the electrode is on or in a blood vessel proximate a target baroreceptor in a wall of the blood vessel;
an implantable fluid delivery device, configured to deliver a fluid agent directly to the wall of the blood vessel proximate the target baroreceptor, wherein the fluid agent is configured to enhance sensitivity of the target baroreceptor to electrical stimulation delivered by the electrode; and
a control system coupled to the baroreceptor activation device and the fluid delivery device, wherein the control system is programmed to stimulate the baroreceptor via the electrode subsequent to delivery of the fluid agent directly to the wall of the blood vessel proximate the baroreceptor.
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Accused Products
Abstract
Devices, systems and methods are described by which the blood pressure, nervous system activity, and neurohormonal activity may be selectively and controllably reduced by activating baroreceptors. A baroreceptor activation device is positioned near a baroreceptor, preferably a baroreceptor located in the carotid sinus. A control system may be used to modulate the baroreceptor activation device. The control system may utilize an algorithm defining a stimulus regimen which promotes long term efficacy and reduces power requirements/consumption. The baroreceptor activation device may utilize electrodes to activate the baroreceptors. The electrodes may be adapted for connection to the carotid arteries at or near the carotid sinus, and may be designed to minimize extraneous tissue stimulation.
405 Citations
18 Claims
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1. A system, comprising:
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an implantable baroreceptor activation device including an electrode, the device adapted to be implanted such that the electrode is on or in a blood vessel proximate a target baroreceptor in a wall of the blood vessel; an implantable fluid delivery device, configured to deliver a fluid agent directly to the wall of the blood vessel proximate the target baroreceptor, wherein the fluid agent is configured to enhance sensitivity of the target baroreceptor to electrical stimulation delivered by the electrode; and a control system coupled to the baroreceptor activation device and the fluid delivery device, wherein the control system is programmed to stimulate the baroreceptor via the electrode subsequent to delivery of the fluid agent directly to the wall of the blood vessel proximate the baroreceptor. - View Dependent Claims (2, 3, 4)
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5. A method, comprising:
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causing a baroreceptor activation device to be manufactured and made available to a user, the baroreceptor activation device having an electrode, the activation device sized and shaped for implantation proximate a baroreceptor in a wall of a blood vessel; causing an implantable fluid delivery device to be manufactured and made available to the user, the implantable fluid delivery device having a fluid agent adapted to enhance the sensitivity of the baroreceptor to electrical stimulation; providing instructions to the user, comprising; implanting the baroreceptor activation device and the fluid delivery device proximate the baroreceptor, such that the electrode is on or in the blood vessel proximate the baroreceptor; delivering the fluid agent with the fluid delivery device directly to the wall of the blood vessel proximate the baroreceptor so as to enhance the sensitivity of the baroreceptor to electrical stimulation; and stimulating the baroreceptor with the electrode of the baroreceptor activation device subsequent to delivering the fluid agent with the fluid delivery device. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A method for providing therapy with a baroreceptor activation device having an electrode, the method comprising:
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implanting the baroreceptor activation device within a patient such that the electrode is on or in a blood vessel proximate a baroreceptor in a wall of the blood vessel; causing a fluid agent to be delivered directly to the wall of the blood vessel proximate the baroreceptor, the fluid agent configured to enhance the sensitivity of the baroreceptor to electrical stimulation; and causing the baroreceptor activation device to stimulate the baroreceptor with the electrode subsequent to delivering the fluid agent. - View Dependent Claims (12, 13, 14, 15)
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16. A method, comprising:
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causing an electrical baroreceptor activation device to be manufactured and made available to a user, the electrical baroreceptor activation device including an electrode sized and shaped for implantation proximate a baroreceptor; providing instructions to the user, comprising; implanting the electrical baroreceptor activation device such that the electrode is on or in a blood vessel proximate a baroreceptor within a wall of the blood vessel; delivering a fluid agent directly to the wall of the blood vessel proximate the baroreceptor, the fluid agent configured to enhance the sensitivity of the baroreceptor to electrical stimulation; and stimulating the baroreceptor with the electrode of the baroreceptor activation device subsequent to delivering the fluid agent. - View Dependent Claims (17, 18)
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Specification