Non-invasive body composition monitor, system and method
First Claim
1. A body composition risk monitor comprising:
- a housing;
electronic circuitry within the housing, the circuitry including;
an electrode interface for operative connection with two or more external electrodes;
a signal conditioning circuit for impressing an alternating current (AC) signal across the electrode interface and for determining the impedance thereacross responsive to the impressed AC signal;
an analog-to-digital converter (ADC) for converting the determined impedance over time to a digital indicator of the user'"'"'s skin'"'"'s bio-impedance between two or more external electrodes; and
a digital processor for calculating defined body composition parameters from such digital indicator of bio-impedance; and
two or more external electrodes for contact with a user'"'"'s skin, the electrodes being operatively connected on one end to the electronics within the housing.
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Accused Products
Abstract
The invented non-invasive vital signs monitor is in a flexible, nominally flat planar form having integral gel electrodes, a sticky-back rear surface, an internal flex circuit capable of sensing, recording and playing out several minutes of the most recently acquired ECG waveform data and a front surface that includes an outplay port. The invented non-invasive body composition ‘risk’ monitor includes a measurement device for monitoring one or more variables including body fluid mass, dehydration, respiratory rate, blood pressure, bio-impedance, cardiography such as cardiac output, and body conformation parameters. The risk monitor may be provided in a lightweight carrying case into which the vital signs monitor plugs. Thus the two monitors may be independent or they may be integrated into one portable, non-invasive device that can convey important patient data to/from a remote patient medical data center via wireless telemetry for oversight, treatment and possible intervention by a physician.
223 Citations
44 Claims
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1. A body composition risk monitor comprising:
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a housing;
electronic circuitry within the housing, the circuitry including;
an electrode interface for operative connection with two or more external electrodes;
a signal conditioning circuit for impressing an alternating current (AC) signal across the electrode interface and for determining the impedance thereacross responsive to the impressed AC signal;
an analog-to-digital converter (ADC) for converting the determined impedance over time to a digital indicator of the user'"'"'s skin'"'"'s bio-impedance between two or more external electrodes; and
a digital processor for calculating defined body composition parameters from such digital indicator of bio-impedance; and
two or more external electrodes for contact with a user'"'"'s skin, the electrodes being operatively connected on one end to the electronics within the housing.
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2. A portable non-homeostatic body composition monitor comprising:
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a housing;
a measurement device coupled with the housing to measure a defined body composition parameter;
an analysis mechanism within the housing to evaluate the measured parameter and to detect one or more changes therein sufficient to signify a trend in the defined body composition parameter that indicates a probable non-homeostatic outcome; and
a notification mechanism operatively coupled with the analysis mechanism and associated with the housing to annunciate any such detected change to a user of the monitor, the housing, the measurement device coupled thereto, the analysis mechanism therewithin and the notification mechanism associated therewith collectively being sufficiently lightweight to be portable. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for monitoring a patient'"'"'s body composition, the system including a device and a communication means, the communication means enabling communication between the device and a site remote therefrom, the device comprising:
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a set of electrodes for operative coupling with a patient'"'"'s skin;
a bio-impedance element operatively coupled with the set of electrodes;
a device control means for the purpose of controlling operation of the system; and
a data processor means coupled with the device control means and the bio-impedance element, and configured to obtain data from the bio-impedance element including at least one of injected AC current data, resultant voltage data, bio-impedance data, and patient body composition data. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of remotely monitoring a patient, the method comprising:
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coupling at least two electrodes that contact the patient'"'"'s skin with a bio-impedance element configured to inject electrical current onto the patient'"'"'s skin and to acquire resultant voltage data from the patient'"'"'s skin;
acquiring data representing such injected current and resultant voltage data from the bio-impedance element;
coupling such acquired data to a communications means; and
transmitting such acquired and coupled data via such communications means to a site remote from the patient. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A body composition monitoring method comprising:
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collecting bio-impedance data from a patient in a non-invasive manner via a portable patient-proximate device;
conveying the collected bio-impedance data from the patient-proximate device to a remote receiving station; and
processing the received bio-impedance data at the remote receiving station to produce patient body composition data. - View Dependent Claims (38, 39, 40)
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41. A method of remotely monitoring a patient, the method comprising:
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coupling at least two electrodes that contact the patient'"'"'s skin with a bio-impedance element to inject electrical current and to measure resultant voltage data from the patient;
acquiring electrical current and resultant voltage data representing at least phase angle and amplitude;
second coupling such injected current data and resultant voltage data to a communication means; and
transmitting such data via such communication means to a site remote from the patient. - View Dependent Claims (42, 43, 44)
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Specification