Multiple pacing output channels
First Claim
1. A method comprising:
- coupling a first capacitor that stores energy to an electrode at a first time for delivery of a first pacing pulse to a heart; and
coupling a second capacitor that stores energy to the electrode at a second time for delivery of a second pacing pulse to the heart, wherein the electrode is a first electrode, the method further comprising coupling the second capacitor to a second electrode for delivery of a first cardiac resynchronization therapy pacing pulse, andwherein coupling the first capacitor to the first electrode comprises coupling the first capacitor to the first electrode for delivery of a second cardiac resynchronization therapy pacing pulse, and coupling the second capacitor to the first electrode comprises coupling the second capacitor to the first electrode for delivery of an extra-systolic pulse.
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Accused Products
Abstract
An implantable medical device includes two or more pacing output channels coupled to a single unipolar electrode or bipolar electrode pair. The implantable medical device can control each pacing output channel to deliver pacing pulses via the single electrode or electrode pair at different times and with different amplitudes. In some embodiments, the implantable medical device is used to deliver extra-systolic stimulation therapy. In such embodiments, a first pacing output channel can be controlled to deliver pacing pulses via the electrode or electrode pair with an amplitude sufficient to depolarize a chamber of the heart. A second pacing output channel is controlled to deliver extra-systolic pulses, which can have a lower amplitude than the pacing pulses, via the electrode or electrode pair an extra-systolic interval after sensed or paced depolarizations of the chamber. In some embodiments, the implantable medical device delivers ESS therapy and cardiac resynchronization therapy (CRT).
31 Citations
16 Claims
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1. A method comprising:
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coupling a first capacitor that stores energy to an electrode at a first time for delivery of a first pacing pulse to a heart; and coupling a second capacitor that stores energy to the electrode at a second time for delivery of a second pacing pulse to the heart, wherein the electrode is a first electrode, the method further comprising coupling the second capacitor to a second electrode for delivery of a first cardiac resynchronization therapy pacing pulse, and wherein coupling the first capacitor to the first electrode comprises coupling the first capacitor to the first electrode for delivery of a second cardiac resynchronization therapy pacing pulse, and coupling the second capacitor to the first electrode comprises coupling the second capacitor to the first electrode for delivery of an extra-systolic pulse. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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coupling a first capacitor that stores energy to an electrode at a first time for delivery of a first pacing pulse to a heart; and coupling a second capacitor that stores energy to the electrode at a second time for delivery of a second pacing pulse to the heart, wherein the electrode is a first electrode, the method further comprising coupling a third capacitor to a second electrode for delivery of a first cardiac resynchronization therapy pacing pulse, and wherein coupling the first capacitor to the first electrode comprises coupling the first capacitor to the first electrode for delivery of a second cardiac resynchronization therapy pacing pulse, and coupling the second capacitor to the first electrode comprises coupling the second capacitor to at least one of the first and second electrodes for delivery of an extra-systolic pulse.
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7. A method comprising:
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coupling a first capacitor that stores energy to an electrode at a first time for delivery of a first pacing pulse to a heart; and coupling a second capacitor that stores energy to the electrode at a second time for delivery of a second pacing pulse to the heart, wherein the electrode is a first electrode, the method further comprising coupling a third capacitor to a second electrode for delivery of a first cardiac resynchronization therapy pacing pulse, and wherein coupling the first capacitor to the first electrode comprises coupling the first capacitor to the first electrode for delivery of a second cardiac resynchronization therapy pacing pulse, and coupling the second capacitor to the first electrode comprises coupling the second capacitor the first electrode for delivery of a first extra-systolic pulse, and the method further comprising coupling a fourth capacitor to the second electrode for delivery of a second extra-systolic pulse. - View Dependent Claims (8, 9, 10)
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11. An apparatus comprising:
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means for coupling a first capacitor that stores energy to an electrode at a first time for delivery of a first pacing pulse to a heart; and means for coupling a second capacitor that stores energy to the electrode at a second time for delivery of a second pacing pulse to the heart, wherein the electrode is a first electrode, and means for coupling the second capacitor to a second electrode for delivery of a first cardiac resynchronization therapy pacing pulse, and wherein the means for coupling the first capacitor to the first electrode comprises means for coupling the first capacitor to the first electrode for delivery of a second cardiac resynchronization therapy pacing pulse, and the means for coupling the second capacitor to the first electrode comprises means for coupling the second capacitor to the first electrode for delivery of an extra-systolic pulse.
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12. An apparatus comprising:
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means for coupling a first capacitor that stores energy to an electrode at a first time for delivery of a first pacing pulse to a heart; and means for coupling a second capacitor that stores energy to the electrode at a second time for delivery of a second pacing pulse to the heart, wherein the electrode comprises a first electrode, the apparatus further comprising means for coupling a third capacitor to a second electrode for delivery of a first cardiac resynchronization therapy pacing pulse, and wherein the means for coupling the first capacitor to the first electrode comprises means for coupling the first capacitor to the first electrode for delivery of a second cardiac resynchronization therapy pacing pulse, and the means for coupling the second capacitor to the first electrode further comprises means for coupling the second capacitor the first electrode for delivery of a first extra-systolic pulse, and the apparatus further comprising means for coupling a fourth capacitor to the second electrode for delivery of a second extra-systolic pulse. - View Dependent Claims (13, 14, 15, 16)
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Specification