ANALYZING A WASHOUT PERIOD CHARACTERISTIC FOR PSYCHIATRIC DISORDER THERAPY DELIVERY
First Claim
1. A method comprising:
- delivering therapy to a patient according to a therapy program during a first period, wherein the therapy program defines a value for at least one therapy parameter for managing a psychiatric condition of the patient;
monitoring a physiological signal of the patient during a second period following the first period; and
automatically determining a characteristic of a washout period based on the monitored physiological signal, wherein the washout period occurs during the second period, and wherein at least one carryover effect from the therapy substantially dissipates during the washout period.
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Accused Products
Abstract
A characteristic of a washout period following the delivery of therapy to a patient according to a therapy program may be determined based on a physiological parameter of the patient. A washout period includes the period of time during which a carryover effect from the therapy dissipates. The washout period characteristic may include, for example, a duration of the washout period, an amplitude or a trend in a physiological signal during the washout period or a power level or a ratio of power levels in frequency bands of the physiological signal. In some embodiments, washout period characteristics associated with a plurality of therapy programs may be used to compare the programs. In other embodiments, a washout period characteristic may be used to determine a mood state of the patient and, in some cases, modify a therapy program. Monitoring a washout period may also be useful for timing therapy program trials.
85 Citations
53 Claims
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1. A method comprising:
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delivering therapy to a patient according to a therapy program during a first period, wherein the therapy program defines a value for at least one therapy parameter for managing a psychiatric condition of the patient; monitoring a physiological signal of the patient during a second period following the first period; and automatically determining a characteristic of a washout period based on the monitored physiological signal, wherein the washout period occurs during the second period, and wherein at least one carryover effect from the therapy substantially dissipates during the washout period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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delivering therapy to a patient according to a therapy program during a first period; monitoring a physiological signal of the patient during a second period following the first period; receiving information indicative of a patient mood state, wherein the patient mood state occurs during the first or second period; and associating the patient mood state with at least one characteristic of the physiological signal during the second period. - View Dependent Claims (20, 21, 22)
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23. A system comprising:
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a sensor that generates a signal as a function of at least one physiological parameter of a patient; a medical device that delivers therapy to a patient according to a therapy program to manage a psychiatric condition during a first period, wherein the therapy program defines a value for at least one therapy parameter; and a processor that monitors the signal during a second period following the first period, and automatically determines a characteristic of a washout period based on the signal, wherein the washout period occurs during the second period, and wherein at least one carryover effect from the therapy substantially dissipates during the washout period. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A system comprising:
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means for delivering therapy to a patient according to a therapy program during a first period, wherein the therapy program defines a value for at least one therapy parameter for managing a psychiatric condition of the patient; means for monitoring a physiological signal of the patient during a second period following the first period; and means for automatically determining a characteristic of a washout period based on the monitored physiological signal, wherein the washout period occurs during the second period, and wherein at least one carryover effect from the therapy substantially dissipates during the washout period. - View Dependent Claims (38, 39, 40)
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41. A method comprising:
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delivering psychiatric disorder therapy to a patient via a medical device according to a therapy program; monitoring a physiological parameter of the patient in response to the psychiatric disorder therapy according to the therapy program; determining a first patient mood state based on the physiological parameter; receiving input indicating a second mood state experienced by the patient in response to the delivery of the psychiatric disorder therapy according to the therapy program; determining whether the first and second mood states are consistent to generate a consistency determination; and associating the consistency determination with the therapy program. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. A system comprising:
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a medical device that delivers psychiatric disorder therapy to a patient according to a therapy program; a sensing module that generates a signal indicative of a physiological parameter of the patient; and a processor that receives the signal from the sensing module, determines a first patient mood state based on the signal, receives input indicating a second mood state experienced by the patient in response to the delivery of the psychiatric disorder therapy according to the therapy program, determines whether the first and second mood states are consistent to generate a consistency determination, and associates the consistency determination with the therapy program. - View Dependent Claims (53)
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Specification