Implantable medical device with circulation delay measurement and therapy control
First Claim
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1. An implantable medical device system comprising:
- an implantable pulse generator;
a controller coupled with the implantable pulse generator and selectively providing pacing stimuli;
an oximeter;
a respiration sensor; and
a circulation delay module communicatively coupled with the controller, the oximeter, and the respiration sensor and providing a measurement of circulation delay which is a time from a resumption of respiraton sensed by the respiration sensor to a nadir of oxygen saluration sensed by the oximeter, wherein the controller receives the measurment of circulation delay and selectively provides pacing based upon the measurement of circulation delay.
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Abstract
Oxygen saturation data is monitored during a predefined window to obtain a measurement of circulation delay. The measured circulation delay is used as a basis for determining therapies, including overdrive pacing. In some embodiments, circulation delay is used to identify patients that will benefit from overdrive pacing as a therapy for sleep disordered breathing.
28 Citations
13 Claims
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1. An implantable medical device system comprising:
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an implantable pulse generator; a controller coupled with the implantable pulse generator and selectively providing pacing stimuli; an oximeter; a respiration sensor; and a circulation delay module communicatively coupled with the controller, the oximeter, and the respiration sensor and providing a measurement of circulation delay which is a time from a resumption of respiraton sensed by the respiration sensor to a nadir of oxygen saluration sensed by the oximeter, wherein the controller receives the measurment of circulation delay and selectively provides pacing based upon the measurement of circulation delay. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable medical device system comprising:
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an implantable pulse generator; a controller coupled with the implantable pulse generator and selectively providing pacing stimuli; an oximeter; an apnea sensor configured to sense an onset and termination of an apnea event; and a circulation delay module communicatively coupled with the controller, the oximeter, and the apnea sensor and providing a measurement of circulation delay that is measured from either the onset of the apnea event as sensed by the apnea sensor to a perceived onset of the apnea event as sensed by the oximeter or the termination of the apnea event as sensed by the apnea sensor to a perceived termination of the apnea event as sensed by the oximeter, wherein the controller receives the measurement of circulation delay and selectively provides pacing based upon the measurement of circulation delay. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification