System and method for sustained baroreflex stimulation
First Claim
1. A medical device, comprising:
- a baroreflex stimulator configured to generate a stimulation signal to stimulate a baroreflex; and
a controller configured to communicate with and control the baroreflex stimulator to deliver baroreflex stimulation with an intensity to cause a desired physiological response and implement a baroreflex stimulation protocol when the baroreflex stimulation causes the desired physiological response to maintain the desired physiological response, wherein in implementing the baroreflex stimulation protocol the controller is configured to vary the intensity of the baroreflex stimulation when the baroreflex stimulation causes the desired physiological response to abate baroreflex adaptation to the baroreflex stimulation.
1 Assignment
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Accused Products
Abstract
Various aspects of the present subject matter provide an implantable medical device. In various embodiments, the device comprises a baroreflex stimulator and a controller. The baroreflex stimulator is adapted to generate a stimulation signal to stimulate a baroreflex. The controller is adapted to communicate with the baroreflex stimulator and implement a baroreflex stimulation protocol to vary an intensity of the baroreflex stimulation provided by the stimulation signal to abate baroreflex adaptation. According to various embodiments, the controller is adapted to implement the baroreflex stimulation protocol to periodically modulate the baroreflex stimulation to produce an effect that mimics an effect of pulsatile pressure. Other aspects are provided herein.
164 Citations
49 Claims
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1. A medical device, comprising:
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a baroreflex stimulator configured to generate a stimulation signal to stimulate a baroreflex; and a controller configured to communicate with and control the baroreflex stimulator to deliver baroreflex stimulation with an intensity to cause a desired physiological response and implement a baroreflex stimulation protocol when the baroreflex stimulation causes the desired physiological response to maintain the desired physiological response, wherein in implementing the baroreflex stimulation protocol the controller is configured to vary the intensity of the baroreflex stimulation when the baroreflex stimulation causes the desired physiological response to abate baroreflex adaptation to the baroreflex stimulation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An implantable medical system, comprising:
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means for generating a baroreflex stimulation signal to stimulate a baroreflex and cause a desired physiological response to baroreflex stimulation; and means for abating baroreflex adaptation to maintain the desired physiological response to the baroreflex stimulation, wherein the means for abating baroreflex adaptation includes means for changing at least one parameter of the baroreflex stimulation signal when the baroreflex stimulation causes the desired response such that the baroreflex stimulation ranges within a range from a first baroreflex stimulation level and a second baroreflex stimulation level when the baroreflex stimulation causes the desired response. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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31. A method, comprising:
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generating a baroreflex stimulation signal to stimulate a baroreflex and cause a desired physiological response to baroreflex stimulation; and abating baroreflex adaptation to maintain the desired physiological response to the baroreflex stimulation, wherein abating baroreflex adaptation includes changing at least one parameter of the baroreflex stimulation signal when the baroreflex stimulation causes the desired response such that the baroreflex stimulation ranges within a range from a first baroreflex stimulation level and a second baroreflex stimulation level when the baroreflex stimulation causes the desired response. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A medical device, comprising:
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a baroreflex stimulator configured to generate a stimulation signal to stimulate a baroreflex; and a controller configured to control the baroreflex stimulator to deliver the stimulation signal at an intensity effective for providing a desired physiological response to the stimulated baroreflex, wherein the controller is further configured to maintain the desired physiological response by abating baroreflex adaptation using a programmed stimulation protocol, wherein the controller is configured to use the programmed stimulation protocol to vary an intensity of the baroreflex stimulation provided by the stimulation signal when the delivered stimulation signal causes the desired physiological response to the stimulated baroreflex.
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49. A medical device, comprising:
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a baroreflex stimulator configured to generate a stimulation signal to stimulate a baroreflex; a controller configured to communicate with the baroreflex stimulator and implement a baroreflex stimulation protocol to vary an intensity of the baroreflex stimulation provided by the stimulation signal to abate baroreflex adaptation; and a pulsation detector to detect a pulse and provide a signal indicative of at least one parameter of the pulse to the controller, wherein the baroreflex stimulation protocol is adapted to vary the baroreflex stimulation based on the pulse, wherein the pulsation detector is adapted to detect a pulse rate and provide a signal indicative of the pulse rate to the controller, and the controller is adapted to implement the baroreflex stimulation protocol to modulate the baroreflex stimulation at a modulation rate approximately equal to the pulse rate, and wherein; the pulsation detector is further adapted to detect a pulse phase and provide a signal indicative of the pulse phase to the controller; the controller is adapted to implement the baroreflex stimulation protocol to modulate the baroreflex stimulation with the pulse phase such that a first pulsatile pressure during a pulse period corresponds to a first baroreflex stimulation level and a second pulsatile pressure during the pulse period corresponds to a second baroreflex stimulation level; the first pulsatile pressure being higher than the second pulsatile pressure; and the first baroreflex stimulation level being higher than the second baroreflex stimulation level.
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Specification