Method and apparatus for determining excitation-physiologic response delays
First Claim
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1. A method for use in an implantable medical device system, comprising:
- sensing a first signal responsive to electrical activity in a first cardiac chamber;
sensing a second signal responsive to a physiologic response to the electrical activity in the first cardiac chamber; and
determining an excitation-physiologic response delay in response to the first signal and the second signal.
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Abstract
An implantable medical device system and associated method are provided for measuring an excitation-physiological response delay. The method includes sensing a first signal responsive to electrical activity in a first cardiac chamber, sensing a second signal responsive to a physiologic response to the electrical activity in the first cardiac chamber; and determining an excitation-physiologic response delay in response to the first signal and the second signal.
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Citations
30 Claims
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1. A method for use in an implantable medical device system, comprising:
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sensing a first signal responsive to electrical activity in a first cardiac chamber;
sensing a second signal responsive to a physiologic response to the electrical activity in the first cardiac chamber; and
determining an excitation-physiologic response delay in response to the first signal and the second signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A computer-readable medium for storing a set of instructions which when implemented in an implantable medical device cause the device to:
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sense a first signal responsive to electrical activity in a first cardiac chamber;
sense a second signal responsive to a physiologic response to the electrical activity in the first cardiac chamber; and
determine an excitation-physiologic response delay in response to the first signal and the second signal.
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16. An implantable medical device system, comprising:
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a first sensor for sensing a first signal responsive to electrical activity in a first cardiac chamber;
a second sensor for sensing a second signal responsive to a physiologic response to the electrical activity in the first cardiac chamber; and
a processor for determining an excitation-physiologic response delay in response to the first sensor signal and the second sensor signal. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for use in an implantable medical device system, comprising:
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sensing a first signal responsive to electrical activity in a first cardiac chamber;
sensing a second signal responsive to a physiologic response to the electrical activity in the first cardiac chamber during a plurality of atrial-ventricular (A-V) delays;
time-indexing the second signal during the plurality of AV delays to a selected feature of the first signal; and
determining a second signal template by averaging the time-indexed second signal.
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Specification