Method and apparatus for controlling neural stimulation during disordered breathing
First Claim
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1. A neural stimulation system, comprising:
- an implantable medical device including;
a therapy output device configured to deliver one or more therapies, the therapy output device including a non-respiratory stimulation output circuit configured to deliver a neural stimulation therapy treating a non-respiratory disorder;
a therapy delivery controller coupled to the therapy output device, the therapy delivery controller configured to control the delivery of the one or more therapies and including a non-respiratory stimulation delivery controller configured to control the delivery of the neural stimulation therapy treating the non-respiratory disorder;
a respiratory signal input configured to receive a respiratory signal;
a respiratory disorder detector coupled to the respiratory signal input, the respiratory disorder detector including an apnea detector configured to detect apnea using the respiratory signal; and
a therapy adjustment module coupled to the respiratory disorder detector and the therapy delivery controller, the therapy adjustment module configured to adjust the delivery of at least one of the one or more therapies in response to the detection of apnea, the therapy adjustment module including a non-respiratory stimulation adjustment module configured to stop the delivery of the neural stimulation therapy treating the non-respiratory disorder in response to the detection of apnea and resume the delivery of the neural stimulation therapy treating the non-respiratory disorder when apnea is no longer detected.
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Abstract
A neural stimulation system controls the delivery of neural stimulation using a respiratory signal as a therapy feedback input. The respiratory signal is used to increase the effectiveness of the neural stimulation, such as vagal nerve stimulation, while decreasing potentially adverse side effects in respiratory functions. In one embodiment, the neural stimulation system detects apnea and, in response, adjusts the delivery of the neural stimulation pulses and/or delivers a respiratory therapy treating the detected apnea.
97 Citations
23 Claims
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1. A neural stimulation system, comprising:
an implantable medical device including; a therapy output device configured to deliver one or more therapies, the therapy output device including a non-respiratory stimulation output circuit configured to deliver a neural stimulation therapy treating a non-respiratory disorder; a therapy delivery controller coupled to the therapy output device, the therapy delivery controller configured to control the delivery of the one or more therapies and including a non-respiratory stimulation delivery controller configured to control the delivery of the neural stimulation therapy treating the non-respiratory disorder; a respiratory signal input configured to receive a respiratory signal; a respiratory disorder detector coupled to the respiratory signal input, the respiratory disorder detector including an apnea detector configured to detect apnea using the respiratory signal; and a therapy adjustment module coupled to the respiratory disorder detector and the therapy delivery controller, the therapy adjustment module configured to adjust the delivery of at least one of the one or more therapies in response to the detection of apnea, the therapy adjustment module including a non-respiratory stimulation adjustment module configured to stop the delivery of the neural stimulation therapy treating the non-respiratory disorder in response to the detection of apnea and resume the delivery of the neural stimulation therapy treating the non-respiratory disorder when apnea is no longer detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for neural stimulation, the method comprising:
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delivering from an implantable medical device one or more therapies, wherein the one or more therapies include at least a neural stimulation therapy treating a non-respiratory disorder; sensing a respiratory signal using an implantable respiratory sensor; detecting apnea using the respiratory signal using the implantable medical device; and suspending the neural stimulation therapy treating the non-respiratory disorder in response to the detection of apnea. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification