Systems, devices, and methods for improving hemodynamic performance through asymptomatic diaphragm stimulation
First Claim
1. A method of improving hemodynamic performance of a heart, the method comprising:
- sensing a plurality of cardiac events directly from a diaphragm;
for each of the sensed cardiac events, determining whether the sensed cardiac event represents a valid cardiac event or a non-valid cardiac event;
establishing a diaphragmatic stimulation delay period based on a plurality of sensed cardiac events that are determined to be valid; and
delivering asymptomatic electrical stimulation therapy directly to the diaphragm based on the established diaphragmatic stimulation delay period.
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Accused Products
Abstract
Hemodynamic performance of a heart may be improved by determining, from a location associated with a diaphragm, an occurrence of a valid cardiac event; and then delivering asymptomatic electrical stimulation therapy directly to the diaphragm at termination of a diaphragmatic stimulation delay period that is timed relative to the occurrence of the valid cardiac event. The diaphragmatic stimulation delay period may be automatically established by sensing a plurality of cardiac events directly from a diaphragm; and for each of the sensed cardia events, determining whether the sensed cardiac event represents a valid cardiac event or a non-valid cardiac event. The diaphragmatic stimulation delay period is then calculated based on a plurality of sensed cardia events that are determined to be valid.
101 Citations
32 Claims
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1. A method of improving hemodynamic performance of a heart, the method comprising:
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sensing a plurality of cardiac events directly from a diaphragm; for each of the sensed cardiac events, determining whether the sensed cardiac event represents a valid cardiac event or a non-valid cardiac event; establishing a diaphragmatic stimulation delay period based on a plurality of sensed cardiac events that are determined to be valid; and delivering asymptomatic electrical stimulation therapy directly to the diaphragm based on the established diaphragmatic stimulation delay period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An implantable medical device comprising:
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one or more electrodes configured to sense a plurality of cardiac events directly from a diaphragm; and at least one electrical circuit structure configured to; for each of the sensed cardiac events, determine whether the sensed cardiac event represents a valid cardiac event or a non-valid cardiac event; establish a diaphragmatic stimulation delay period based on a plurality of sensed cardiac events that are determined to be valid; and deliver asymptomatic electrical stimulation therapy directly to the diaphragm through the one or more electrodes based on the established diaphragmatic stimulation delay period. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for improving hemodynamic performance of a heart, the method comprising:
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determining, from a location associated with a diaphragm, an occurrence of a valid cardiac event; determining a termination of a delay period that is timed relative to the occurrence of the valid cardiac event; and delivering asymptomatic electrical stimulation therapy directly to the diaphragm at the termination of the delay period. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. An implantable medical system for improving hemodynamic performance of a heart, the system comprising:
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one or more electrical stimulation therapy elements configured for placement on or near a diaphragm; and at least one electrical circuit structure coupled to the one or more electrical stimulation therapy elements and configured to; determine, from a location associated with the diaphragm, an occurrence of a valid cardiac event; and deliver asymptomatic electrical stimulation therapy directly to the diaphragm at termination of a delay period that is timed relative to the occurrence of the valid cardiac event. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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Specification