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US 7,467,012 B1Granted
Respiration parameters controlled by heart rate
AssigneePacesetter, Inc.
InventorsEuljoon Park, Gene A. Bornzin, Mark W. Kroll
Life of this patent
Estimating the term…
Abstract
Heart rate information is used at least in part to obtain one or more parameters for inducing respiration. In various implementations, respiratory parameters, such as a target breathing rate or a target tidal volume may be delivered by an implantable device to a patient during periods of altered respiration, such as sleep apnea or exercise. A respiratory parameter may also be obtained from a physiological variable, a patient's physical activity level, or metabolic demands.
Claims16
A method, comprising:
- delivering cardiac stimulation pulses to a patient's heart at a heart rate;
- obtaining heart rate information for the patient;
- obtaining a sensed respiratory parameter for the patient;
- determining a target respiratory parameter based at least in part on the heart rate information;
- comparing the sensed respiratory parameter to the target respiratory parameter;
- and
- delivering respiratory stimulation if the target respiratory parameter is greater than the sensed respiratory parameter, wherein the delivery of respiratory stimulation is synchronized with the delivery of cardiac stimulation pulses so as to affect respiratory function of the patient without affecting the heart rate, except for every Nth cardiac stimulation pulse, wherein the amplitude of the cardiac pacing stimulation pulse is increased to an energy level sufficient to both stimulate the heart and induce respiration.
4 more elements
A device comprising:
- means for delivering cardiac stimulation pulses to a patient's heart at a heart rate;
- means for obtaining heart rate information associated with the patient;
- means for obtaining a native respiratory parameter for the patient;
- means for determining a target respiratory parameter based at least in part on the heart rate information;
- means for comparing the native respiratory parameter to the target respiratory parameter;
- and
- means for delivering respiratory stimulation if the target respiratory parameter is greater than the native respiratory parameter, wherein the delivery of respiratory stimulation is synchronized with the delivery of cardiac stimulation pulses so as to affect respiratory function of the patient without affecting the heart, except for every Nth cardiac stimulation pulse, wherein the amplitude of the cardiac pacing stimulation pulse is increased to an energy level sufficient to both stimulate the heart and induce respiration.
4 more elements
A method, comprising:
- delivering cardiac stimulation pulses to a patient's heart at a heart rate;
- obtaining heart rate information for the patient;
- obtaining a sensed respiratory parameter for the patient;
- determining a target respiratory parameter based at least in part on the heart rate information;
- comparing the sensed respiratory parameter to the target respiratory parameter;
- and
- delivering respiratory stimulation if the target respiratory parameter is greater than the sensed respiratory parameter, wherein the delivery of respiratory stimulation is synchronized with the delivery of cardiac stimulation pulses so as to affect respiratory function of the patient without affecting the heart rate, wherein delivering respiratory stimulation further comprises increasing a series of cardiac stimulation pulses in order of ascending amplitude to progressively contract the diaphragm to effect inspiration.
4 more elements
Dependencies are inferred from the claim text.