METHODS AND DEVICES FOR RELIEVING STRESS
First Claim
Patent Images
1. A method of identifying at least one respiratory sinus arrhythmia wave in a subject comprising:
- recording heart rate related intervals over time; and
analyzing heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave, wherein said delineation includes identifying at least one transition point in the at least one individual respiratory sinus arrhythmia wave.
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Abstract
Easy to use, cost-effective methods and devices for evaluating and treating stress and thereby disorders caused or exacerbated by stress are provided. More particularly methods and devices for identifying RSA waves during respiration which provide a subject with near real-time RSA wave information are provided. This information can be used in biofeedback settings to assist subjects in reducing levels of stress by achieving rhythmic breathing patterns.
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Citations
47 Claims
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1. A method of identifying at least one respiratory sinus arrhythmia wave in a subject comprising:
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recording heart rate related intervals over time; and analyzing heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave, wherein said delineation includes identifying at least one transition point in the at least one individual respiratory sinus arrhythmia wave. - View Dependent Claims (2, 3, 4)
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5. A method of reducing stress in a human subject comprising:
providing a subject with near real-time respiratory sinus arrhythmia wave information, wherein said information is derived from recording more than one heart rate related intervals of the subject; and
analyzing the more than one heart rate related interval of the subject sufficient to delineate at least one individual respiratory sinus arrhythmia wave, wherein said delineation includes indentifying at least one transition point in the at least one individual respiratory sinus arrhythmia wave.- View Dependent Claims (6, 7, 8)
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9. A method for identifying rhythmic breathing comprising:
comparing at least two consecutive respiratory sinus arrhythmia waves; and
determining when there is a small variation in at least one wave feature of the at least two consecutive respiratory sinus arrhythmia waves.- View Dependent Claims (10, 11, 12, 13, 14, 15)
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16-18. -18. (canceled)
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19. A handheld, portable biofeedback device for reducing stress in a human subject comprising:
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a housing; a photoplethysmograph sensor disposed in the housing, wherein the photoplethysmograph sensor generates data from the human subject; a control system coupled to the photoplethysmograph sensor; and a display screen, wherein the control system is configured to process the data from the human subject for output to the display screen, the output data providing the human subject with information associated with the human subject'"'"'s stress level; and wherein the housing, photoplethysmograph sensor, control system and display screen form an integrated structure wherein during respiration of a human subject said device is configured to record multiple heart rate related intervals of the subject; and analyze heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 40, 41)
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28. A method of detecting erroneous data relating to respiratory sinus arrhythmia wave delineation comprising:
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identifying at least 2 consecutive heart rate related intervals having an interbeat interval time less than a predetermined threshold or a threshold derived from a heart rate related interval set; calculating a range for the interbeat interval times of the at least 2 consecutive heart rate related intervals; and comparing each subsequent heart rate related interval with the calculated range to determine if it is within said range. - View Dependent Claims (29, 30, 31)
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32. A method of correcting erroneous, data relating to respiratory sinus arrhythmia wave identification comprising:
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identifying a heart rate related interval which is both not within a predetermined range and has an interbeat interval time greater than a threshold; calculating a corrected heart rate related interval wherein if the first heart rate related interval is less than the predetermined range, adding subsequent heart rate related intervals to the first heart rate related interval until the sum of said intervals is within or above the predetermined range; if the first heart rate related interval or sum of said intervals is greater than the predetermined range and not divisible by an integer, adding subsequent heart rate related intervals to the first heart rate related intervals until the sum of said intervals is divisible by an integer such that the quotient is within the predetermined range; and creating a corrected respiratory sinus arrhythmia wave based on the corrected heart rate related interval. - View Dependent Claims (33, 34)
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35. A method of adjusting scaling on the display of a portable biofeedback device during rhythmic respiration of a subject comprising:
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determining the highest amplitude of respiratory sinus arrhythmia waves over time; and maintaining the scaling to correspond to the largest wave formed during respiration.
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36. A computer program product comprising a computer usable medium having computer readable program code means embodied therein, the computer readable program code means in said computer program product comprising means for causing a computer to:
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record heart rate related intervals over time; and analyze heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave, wherein said delineation includes identifying a set of transition points in each individual respiratory sinus arrhythmia wave.
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37. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform a method for identifying at least on respiratory sinus arrhythmia wave in a subject comprising:
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recording heart rate related intervals over time; and analyzing heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave, wherein said delineation includes identifying a set of transition points in each individual respiratory sinus arrhythmia wave.
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38. A computer program product comprising a computer usable medium having computer readable program code means embodied therein, the computer readable program code means in said computer program product comprising means for causing a computer to:
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compare at least two consecutive respiratory sinus arrhythmia waves; and determine when there is a small variation in at least one wave feature of the at least two consecutive respiratory sinus arrhythmia waves.
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39. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform a method for identifying rhythmic breathing comprising:
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comparing at least two consecutive respiratory sinus arrhythmia waves; and determining when there is a small variation in at least one wave feature of the at least two consecutive respiratory sinus arrhythmia waves.
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42. A method of identifying at least one respiratory sinus arrhythmia wave in a subject comprising:
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recording heart rate related intervals over time; and analyzing heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave, wherein said delineation includes identifying at least one transition point in the at least one individual respiratory sinus arrhythmia wave; wherein the housing, photoplethysmograph sensor, control system and display screen form an integrated structure; wherein the data generated from the human subject includes a wave, having a top and a bottom; and wherein, whenever the wave has double tops or double bottoms, the control system is further configured to merge together the double tops or the double bottoms.
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43. A method of detecting erroneous data relating to respiratory sinus arrhythmia wave delineation comprising:
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identifying at least 2 consecutive heart rate related intervals having an interbeat interval time less than a predetermined threshold or a threshold derived from a heart rate related interval set; calculating a range for the interbeat interval times of the at least 2 consecutive heart rate related intervals; and comparing each subsequent heart rate related interval with the calculated range to determine if it is within said range wherein the waves includes a wave, having a top and a bottom; and wherein, whenever the wave has double tops or double bottoms, the double tops or the double bottoms are merged together.
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44. A method of correcting erroneous data relating to respiratory sinus arrhythmia wave identification comprising:
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using a processor for identifying a heart rate related interval which is both not within a predetermined range and has an interbeat interval time greater than a threshold;
the processor calculating a corrected heart rate related interval wherein;
if the first heart rate related interval is less than the predetermined range, adding subsequent heart rate related intervals to the first heart rate related interval until the sum of said intervals is within or above the predetermined range; and
if the first heart rate related interval or sum of said intervals is greater than the predetermined range and not divisible by an integer, adding subsequent heart rate related intervals to the first heart rate related intervals until the sum of said intervals is divisible by an integer such that the quotient is within the predetermined range; andthe processor creating a corrected respiratory sinus arrhythmia wave based on the corrected heart rate related interval; wherein the data includes a wave, having a top and a bottom; and wherein, whenever the wave has double tops or double bottoms, the double tops or the double bottoms are merged together.
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45. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform a method for identifying at least on respiratory sinus arrhythmia wave in a subject comprising:
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recording heart rate related intervals over time; and analyzing heart rate related intervals sufficient to delineate at least one individual respiratory sinus arrhythmia wave, the wave including a top and a bottom, the analysis including whenever the wave includes a double top or a double bottom then merging together the double top or the double bottom; and
wherein said delineation includes identifying a set of transition points in each individual respiratory sinus arrhythmia wave.
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46. A computer usable medium having computer readable program code embodied therein for controlling a computer processor, the computer readable program code comprising:
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means for processing the wave, wherein the waves include a top and a bottom, and the processing includes whenever the wave has a double top or a double bottom then merging together the double top or double bottom; means for compare at least two consecutive processed respiratory sinus arrhythmia waves; and means for determine when there is a small variation in at least one wave feature of the at least two consecutive processed respiratory sinus arrhythmia waves.
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47. A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform a method for identifying rhythmic breathing comprising:
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processing the waves, wherein the waves include a top and a bottom, and the processing includes whenever the wave has a double top or a double bottom then merging together the double top or double bottom; comparing at least two consecutive processed respiratory sinus arrhythmia waves; and determining when there is a small variation in at least one wave feature of the at least two consecutive processed respiratory sinus arrhythmia waves.
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Specification