ELECTRODE STRUCTURES AND METHODS FOR THEIR USE IN CARDIOVASCULAR REFLEX CONTROL
First Claim
1. An extravascular baroreceptor activation device comprising:
- a multi-channel electrode assembly having a flexible base adapted to be placed extravascularly around a vessel within a patient;
a plurality of selectively activateable electrodes coupled to the electrode assembly; and
a connection cable adapted to couple the device to a control system for controlling the device, wherein the electrodes are electrically coupled to the connection cable.
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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.
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Citations
23 Claims
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1. An extravascular baroreceptor activation device comprising:
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a multi-channel electrode assembly having a flexible base adapted to be placed extravascularly around a vessel within a patient;
a plurality of selectively activateable electrodes coupled to the electrode assembly; and
a connection cable adapted to couple the device to a control system for controlling the device, wherein the electrodes are electrically coupled to the connection cable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of maintaining efficacy of a baroreflex therapy, comprising:
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providing a baroreceptor activation device including;
a multi-channel electrode assembly having a flexible base adapted to be placed extravascularly around a vessel within a patient;
at least four selectively activateable electrodes coupled to the electrode assembly; and
a connection cable adapted to couple the device to a control system for controlling the device, wherein the electrodes are electrically coupled to the connection cable;
selectively activating two or more electrodes with the control system to induce a baroreceptor signal in a patient and provide a baroreflex therapy;
altering the activating two or more electrodes to activate a different two or more electrodes to maintain the effectiveness of the therapy. - View Dependent Claims (10, 11, 12, 13)
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14. A method of mapping a baroreceptor-containing location, the method comprising:
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providing a baroreceptor activation device including;
a multi-channel electrode assembly having a flexible base adapted to be placed extravascularly around a vessel within a patient;
at least four selectively activateable electrodes coupled to the electrode assembly; and
a connection cable adapted to couple the device to a control system for controlling the device, wherein the electrodes are electrically coupled to the connection cable;
selectively activating a first set of electrodes and measuring a parameter indicative of baroreceptor activation in response to activating the first set of electrodes;
selectively activating additional sets of electrodes, and measuring a parameter indicative of baroreceptor activation in response to activating the additional sets of electrodes; and
determining a set of electrodes which maximize the baroreceptor response for use in a baroreflex therapy. - View Dependent Claims (15, 16, 17, 18)
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19. A baroreflex activation device comprising:
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an electrode assembly having a base adapted to be placed extravascularly generally around a vessel within a patient;
more than four electrodes coupled to the electrode assembly, each electrode being individually selectively activable; and
a connection cable adapted to couple the device to a control system that controls the baroreflex activation device, the connection cable including more than four conductors, each conductor electrically coupled to one of the electrodes.
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20. A baroreflex activation device comprising:
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an electrode assembly including;
a base adapted to be placed extravascularly generally around a vessel within a patient; and
more than two channels defined in the base, each channel having a plurality of selectively activable electrodes positioned relative to that channel; and
a connection cable adapted to couple the device to a control system that controls the baroreflex activation device. - View Dependent Claims (21, 22, 23)
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Specification