DATA RECORDING FOR PATIENT STATUS ANALYSIS
First Claim
1. A method for analyzing the status of a subject, the method comprising the steps of:
- providing a cordless recording device comprising a set of electrodes;
attaching the cordless recording device on the forehead of the subject;
collecting brain wave signal data from the subject through at least one electrode of the set;
measuring bioimpedance through two electrodes of the set, thereby to obtain an impedance signal indicative of the bioimpedance of a signal path connecting the two electrodes, wherein the collecting and the measuring are performed over a measurement period;
deriving heart rate data from the impedance signal, the heart rate data being indicative of the heart rate of the subject;
generating, based on the brain wave signal data, status information indicative of the status of the subject during the measurement period; and
utilizing the heart rate data to enhance the quality of the status information.
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Accused Products
Abstract
A method and system for analyzing the status of a subject. A cordless recording device comprising a set of electrodes is attached on the forehead of the subject to collect brain wave signal data from the subject. Based on the brain wave signal data, status information indicative of the status of the subject during a measurement period is generated. A bioimpedance signal is further measured through two electrodes of the electrode set and heart rate data is derived from the bioimpedance signal. The heart rate data is utilized to enhance the quality of the status information, which is typically sleep state information. The invention also relates to a recording device attachable to the forehead of the subject. The recording may comprise a data memory for storing the data measured from the subject during the measurement period.
72 Citations
23 Claims
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1. A method for analyzing the status of a subject, the method comprising the steps of:
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providing a cordless recording device comprising a set of electrodes; attaching the cordless recording device on the forehead of the subject; collecting brain wave signal data from the subject through at least one electrode of the set; measuring bioimpedance through two electrodes of the set, thereby to obtain an impedance signal indicative of the bioimpedance of a signal path connecting the two electrodes, wherein the collecting and the measuring are performed over a measurement period; deriving heart rate data from the impedance signal, the heart rate data being indicative of the heart rate of the subject; generating, based on the brain wave signal data, status information indicative of the status of the subject during the measurement period; and utilizing the heart rate data to enhance the quality of the status information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An analysis system for analyzing the status of a subject, the system comprising:
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a data collection unit configured to collect brain wave signal data from a subject through at least one electrode of a set of electrodes of a cordless recording device attachable to the forehead of the subject; an impedance measurement unit configured to measure bioimpedance through two electrodes of the set, thereby to obtain an impedance signal indicative of the bioimpedance of a signal path connecting the two electrodes; a heart rate analysis unit configured to derive heart rate data from the impedance signal, the heart rate data being indicative of the heart rate of the subject; a status analysis unit configured to generate, based on the brain wave signal data, status information indicative of the status of the subject during the measurement period; and a quality enhancing unit configured to enhance the quality of the status information based on the heart rate data. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A cordless recording device for recording physiological data from a subject, the cordless recording device comprising:
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a set of electrodes; a first data collection unit configured to collect brain wave signal data from a subject through at least one electrode of the set; an impedance measurement unit configured to measure bioimpedance through two electrodes of the set, thereby to obtain an impedance signal indicative of the bioimpedance of a signal path connecting the two electrodes; and a second data collection unit configured to collect pulse data indicative of the heart rate of the subject. - View Dependent Claims (18, 19, 20, 21)
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22. An analysis system for analyzing the status of a subject, the system comprising:
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data collection means for collecting brain wave signal data from a subject through at least one electrode of a set of electrodes of a cordless recording device attachable to the forehead of the subject; impedance measurement means for measuring bioimpedance through two electrodes of the set, thereby to obtain an impedance signal indicative of the bioimpedance of a signal path connecting the two electrodes; heart rate analysis means for deriving heart rate data from the impedance signal, the heart rate data being indicative of the heart rate of the subject; status analysis means for generating, based on the brain wave signal data, status information indicative of the status of the subject during the measurement period; and quality enhancing means for enhancing the quality of the status information based on the heart rate data.
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23. A cordless recording device for recording physiological data from a subject, the cordless recording device comprising:
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a set of electrodes; first data collection means for collecting brain wave signal data from a subject through at least one electrode of the set; impedance measurement means for measuring bioimpedance through two electrodes of the set, thereby to obtain an impedance signal indicative of the bioimpedance of a signal path connecting the two electrodes; and second data collection means for collecting pulse data indicative of the heart rate of the subject.
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Specification