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US 7,599,739 B2Granted
Multi-chamber timing for premature cardiac pacing
AssigneeMedtronic, Inc.
InventorJohn Harrison Hudnall
Life of this patent
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Abstract
A pacing control is used in multi-chamber cardiac potentiation therapy to provide a first premature pacing pulse to a first chamber based on a previous event sensed in the first chamber, and to provide a second premature pacing pulse to a second chamber based on a previous event sensed in the second chamber.
Claims7
A method of providing cardiac potentiation therapy, the method comprising:
- sensing an atrial depolarization;
- delivering a premature atrial pace based on the sensed atrial depolarization at a first time interval following the sensed atrial depolarization;
- sensing a ventricular depolarization;
- delivering a premature ventricular pace based on the sensed ventricular depolarization at a second time interval following the sensed ventricular depolarization;
- and
- selecting the first time interval to be greater than a non-nodal atrial refractory period caused by the sensed atrial depolarization and less than a sino-atrial node refractory period caused by the sensed atrial depolarization to prevent the sino-atrial node from being depolarized by the premature atrial pace.
3 more elements
A method of providing cardiac potentiation therapy (PESP), the method comprising:
- sensing an atrial depolarization;
- delivering a premature atrial pace based on the sensed atrial depolarization at a first time interval following the sensed atrial depolarization;
- and
- selecting the first time interval to be greater than a non-nodal atrial refractory period caused by the sensed atrial depolarization and less than a sino-atrial node refractory period caused by the sensed atrial depolarization to prevent the sino-atrial node from being depolarized by the premature atrial pace.
1 more element
Dependencies are inferred from the claim text.