Methods and devices for monitoring myocardial mechanical stability
First Claim
1. In an implantable system, a method for monitoring myocardial mechanical stability based on a signal that is indicative of mechanical functioning of the patient'"'"'s heart for a plurality of consecutive beats, the method comprising:
- (a) dividing the plurality of consecutive beats into a plurality of sets of N consecutive beats, where N is an integer that is at least 3;
(b) for each set of N consecutive beats, selecting 2 of the N beats to produce a sub-set of 2 beats per set of N consecutive beats;
(c) transforming time domain data, associated with the plurality of sub-sets of 2 beats, to frequency domain data; and
(d) monitoring myocardial mechanical stability based on the frequency domain data.
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Abstract
Embodiments of the present invention relate to implantable systems, and methods for use therewith, for monitoring myocardial mechanical stability based on a signal that is indicative of mechanical functioning of a patient'"'"'s heart for a plurality of consecutive beats. Certain embodiments use time domain techniques, while other embodiments use frequency domain techniques, to monitor myocardial mechanical stability. In certain embodiments the patient'"'"'s heart is paced using a patterned pacing sequence that repeats every N beats. In other embodiments, the patient'"'"'s heart need not be paced. This abstract is not intended to be a complete description of, or limit the scope of, the invention.
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Citations
21 Claims
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1. In an implantable system, a method for monitoring myocardial mechanical stability based on a signal that is indicative of mechanical functioning of the patient'"'"'s heart for a plurality of consecutive beats, the method comprising:
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(a) dividing the plurality of consecutive beats into a plurality of sets of N consecutive beats, where N is an integer that is at least 3; (b) for each set of N consecutive beats, selecting 2 of the N beats to produce a sub-set of 2 beats per set of N consecutive beats; (c) transforming time domain data, associated with the plurality of sub-sets of 2 beats, to frequency domain data; and (d) monitoring myocardial mechanical stability based on the frequency domain data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An implantable system for monitoring myocardial mechanical stability based on a signal that is indicative of mechanical functioning of the patient'"'"'s heart for a plurality of consecutive beats, the system comprising:
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one or more sensor to obtain the signal that is indicative of mechanical functioning of the patient'"'"'s heart for a plurality of consecutive beats; and a controller to divide the plurality of consecutive beats into a plurality of sets of N consecutive beats, where N is an integer that is at least 3; select 2 of the N beats to produce a sub-set of 2 beats per set of N consecutive beats, for each set of N consecutive beats; transform time domain data, associated with the plurality of sub-sets of 2 beats, to frequency domain data; and monitor myocardial mechanical stability based on the frequency domain data. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. An implantable system for monitoring myocardial mechanical stability, comprising:
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means for obtaining a signal that is indicative of mechanical functioning of the patient'"'"'s heart for a plurality of consecutive beats; means for dividing the plurality of consecutive beats into a plurality of sets of N consecutive beats, where N is an integer that is at least 3; means for selecting 2 of the N beats to produce a sub-set of 2 beats per set of N consecutive beats, for each set of N consecutive beats; means for transforming time domain data, associated with the plurality of sub-sets of 2 beats, to frequency domain data; and means for monitoring myocardial mechanical stability based on the frequency domain data. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification