Cardiac resynchronization with adaptive A1-A2 and/or V1-V2 intervals
First Claim
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1. An implantable medical device system comprising:
- a pulse generator that delivers a first pacing pulse to a first cardiac chamber of a heart and a second pacing pulse to a second cardiac chamber of the heart following a pacing interval; and
a processor that selects the pacing interval as a function of a heart rate, wherein the first cardiac chamber and the second cardiac chamber are complementary cardiac chambers, wherein the pacing interval is a first pacing interval, wherein the pulse generator delivers a third pacing pulse to a third cardiac chamber of a heart and a fourth pacing pulse to a fourth cardiac chamber of the heart following a second pacing interval; and
wherein the processor that selects the second pacing interval as a function of the heart rate.
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Abstract
In a system that provides bi-atrial and/or bi-ventricular pacing, the system adjusts an interval between paces delivered to the atria, and/or an interval between paces delivered to the ventricles, as a function of heart rate. By adjusting the interval between paces as a function of heart rate, the atria and/or ventricles may be activated in a more synchronous and more hemodynamically efficient fashion.
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Citations
20 Claims
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1. An implantable medical device system comprising:
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a pulse generator that delivers a first pacing pulse to a first cardiac chamber of a heart and a second pacing pulse to a second cardiac chamber of the heart following a pacing interval; and
a processor that selects the pacing interval as a function of a heart rate, wherein the first cardiac chamber and the second cardiac chamber are complementary cardiac chambers, wherein the pacing interval is a first pacing interval, wherein the pulse generator delivers a third pacing pulse to a third cardiac chamber of a heart and a fourth pacing pulse to a fourth cardiac chamber of the heart following a second pacing interval; and
wherein the processor that selects the second pacing interval as a function of the heart rate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An implantable medical device system comprising:
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a pulse generator that delivers a first pacing pulse to a first cardiac chamber of a heart and a second pacing pulse to a second cardiac chamber of the heart following a pacing interval; and
a processor that selects the pacing interval as a function of a heart rate, wherein the first cardiac chamber and the second cardiac chamber are complementary cardiac chambers and further comprising a first electrode, a second electrode and a third electrode coupled to the pulse generator, the first electrode disposed in the first cardiac chamber and the second and third electrodes disposed in the second cardiac chamber and wherein the pacing interval is a first pacing interval, the processor selects a second pacing interval as a function of the heart rate, the pulse generator delivers a first pacing pulse to the first cardiac chamber via the first electrode, the pulse generator delivers a second pacing pulse to the second cardiac chamber via the second electrode following the first pacing interval, an the pulse generator delivers a third pacing pulse to the second cardiac chamber via the third electrode following the second pacing interval. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method comprising:
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selecting a pacing interval as a function of a heart rate;
delivering a first pacing pulse to a first cardiac chamber of a heart; and
delivering a second pacing pulse to a second cardiac chamber of the heart following the pacing interval;
wherein the first cardiac chamber and the second cardiac are complementary cardiac chambers and further comprising;
setting a second heart rate;
selecting a second pacing interval as a function of the second heart rate.
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16. A method comprising:
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selecting a pacing interval as a function of a heart rate;
delivering a first pacing pulse to a first cardiac chamber of a heart; and
delivering a second pacing pulse to a second cardiac chamber of the heart following the pacing interval;
wherein the first cardiac chamber and the second cardiac are complementary cardiac chambers and wherein the pacing interval is first pacing interval, the method further comprising;
delivering a third paving pulse to a third cardiac chamber of a heart; and
delivering a fourth pacing pulse to a fourth cardiac chamber of the heart following a second pacing interval.
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17. A method comprising:
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selecting a pacing interval as a function of a heart rate;
delivering a first pacing pulse to a first cardiac chamber of a heart; and
delivering a second pacing pulse to a second cardiac chamber of the heart following the pacing interval;
wherein the first cardiac chamber and the second cardiac are complementary cardiac chambers and wherein the pacing interval is a first pacing interval, the method further comprising delivering a third pacing pulse to one of the first and second cardiac chambers following a second pacing interval.
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18. A computer-readable medium comprising instructions that cause a processor to perform a method of cardiac pacing, said medium comprising:
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instructions for selecting a pacing interval solely as a function of a paced heart rate;
instructions for delivering a first pacing pulse to a first cardiac chamber of a heart; and
instructions for delivering a second pacing pulse to second cardiac chamber of the heart following the pacing interval;
wherein the first cardiac chamber and the second cardiac are complementary cardiac chambers, and further comprising;
instructions for setting a second paced heart rate; and
instructions for selecting a second pacing interval as a function of the second heart rate. - View Dependent Claims (19, 20)
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Specification