EXPANDABLE STIMULATION ELECTRODE WITH INTEGRATED PRESSURE SENSOR AND METHODS RELATED THERETO
First Claim
1. An apparatus comprising:
- at least one fixation electrode adapted to abut a wall of a pulmonary artery;
a pressure sensor integrally supported by the at least one fixation electrode, the pressure sensor providing a signal indicative of a blood pressure in the pulmonary artery;
a pulse generator coupled with the at least one fixation electrode, the pulse generator adapted to deliver a baroreflex stimulation signal to one or more baroreceptors in the pulmonary artery via the at least one fixation electrode; and
wherein the pressure sensor is anchorable in the pulmonary artery via the at least one fixation electrode.
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Abstract
This patent document discusses, among other things, apparatuses and methods including an expandable stimulation electrode with an integrated pressure sensor. In various examples, the apparatus further comprises a pulse generator, a controller, a posture sensor, or a physiological parameter sensor. When expanded, the electrode is adapted to abut a wall of a pulmonary artery, thereby providing an arterial anchor for the integrated pressure sensor. In addition, the expandable electrode provides a means to deliver baroreflex stimulation signals, generated by the pulse generator, to one or more baroreceptors in the arterial wall. Based on pressure sensor-provided signals indicative of an arterial blood pressure, the controller provides stimulation instructions to the pulse generator. The posture sensor may be used to normalize the pressure data or limit such data collection to a single posture orientation. In one example, the physiological parameter sensor includes a temperature sensor.
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Citations
26 Claims
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1. An apparatus comprising:
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at least one fixation electrode adapted to abut a wall of a pulmonary artery;
a pressure sensor integrally supported by the at least one fixation electrode, the pressure sensor providing a signal indicative of a blood pressure in the pulmonary artery;
a pulse generator coupled with the at least one fixation electrode, the pulse generator adapted to deliver a baroreflex stimulation signal to one or more baroreceptors in the pulmonary artery via the at least one fixation electrode; and
wherein the pressure sensor is anchorable in the pulmonary artery via the at least one fixation electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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an expandable electrode having an expanded diameter dimensioned to abut a wall of a pulmonary artery;
a pulmonary artery pressure sensor coupled to the expandable electrode, the pressure sensor adapted to monitor blood pressure in the pulmonary artery;
a pulse generator electrically coupled with the expandable electrode, the pulse generator being adapted to deliver a baroreflex stimulation signal to a baroreceptors in the pulmonary artery by way of the expandable electrode; and
wherein the expandable electrode is adapted to fix the pulmonary artery pressure sensor in place by frictional forces. - View Dependent Claims (17, 18)
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19. A method comprising:
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forming an expandable electrode, including forming an expanded shape dimensioned to abut a wall of a pulmonary artery;
securing a pulmonary artery pressure sensor to the expandable electrode such that the pressure sensor is fixable in the pulmonary artery via the expandable electrode; and
wherein the expandable electrode and the pulmonary artery pressure sensor are adapted to be fed through a right ventricle and a pulmonary valve into the pulmonary artery. - View Dependent Claims (20)
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21. A method of use comprising:
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implanting an expandable electrode having an integrated pressure sensor within a pulmonary artery such that an outer surface of the electrode abuts a wall of the pulmonary artery;
monitoring a signal indicative of a blood pressure in the pulmonary artery using the pressure sensor; and
delivering a baroreflex stimulation signal to one or more baroreceptors in the pulmonary artery via the electrode. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification