Medical therapy apparatus which administers therapy adjusted to follow natural variability of the physiological function being controlled
First Claim
1. A medical therapy apparatus comprising:
- means for generating a basic therapy for artificially controlling a physiological function of a subject, said physiological function having a natural variability associated therewith;
a non-linear oscillator having an output;
means for matching said output of said non-linear oscillator to said natural variability of said physiological function to produce a variability adjustment;
means for combining said basic therapy and said variability adjustment to generate a variability-adjusted therapy; and
means for administering said variability-adjusted therapy to said subject.
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Abstract
In a medical therapy apparatus, such as a pacemaker, a physiological function which is to be artificially controlled by therapy administration has a natural variability associated therewith. The medical therapy apparatus generates a basic therapy which would otherwise be supplied to the subject in the absence of such natural variability. The medical therapy apparatus further includes a non-linear oscillator which emits a chaotic output, the chaotic output of the non-linear oscillator being matched to the variability of the physiological function in order to produce a variability adjustment. The basic therapy is combined with the variability adjustment and a variability-adjusted therapy is then administered to the subject.
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Citations
30 Claims
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1. A medical therapy apparatus comprising:
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means for generating a basic therapy for artificially controlling a physiological function of a subject, said physiological function having a natural variability associated therewith; a non-linear oscillator having an output; means for matching said output of said non-linear oscillator to said natural variability of said physiological function to produce a variability adjustment; means for combining said basic therapy and said variability adjustment to generate a variability-adjusted therapy; and means for administering said variability-adjusted therapy to said subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
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12. A medical therapy apparatus as claimed in claim wherein said non-linear oscillator comprises means for modeling an autonomous chaotic system.
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14. A pacemaker for artificially controlling a heartbeat rate of a subject, said heartbeat rate having a natural variability associated therewith, said pacemaker comprising:
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pulse generator means for generating a plurality of successive pacing pulses respectively separated by pulse intervals; control means for setting a basic pacing rate; a non-linear oscillator having an output; means for matching said output of said non-linear oscillator to said natural variability of said heartbeat rate to produce a variability adjustment; means for combining said basic rate with said variability adjustment to generate a variability-adjusted stimulation rate, said pulse generator means emitting said stimulation pulses at said variability-adjusted stimulation rate; and means for delivering said stimulation pulses at said variability-adjusted stimulation rate to a heart of said subject. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A medical therapy apparatus comprising:
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means for administering medical therapy to a subject; means for modeling a plurality of possible therapy procedures, each therapy procedure having a set of variables associated therewith, for obtaining a plurality of modeled therapy procedure results; random variable generator means, including a non-linear oscillator, for generating a plurality of random variables for use as said sets of variables; and means for selecting one of said modeled therapy procedure results as optimum for a subject to whom said therapy is to be administered.
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Specification