Non-invasive portable dehydration diagnostic system, device and method
First Claim
1. A non-invasive human-patient fluid volume monitor comprising:
- a non-invasive electro-optical detector configured to monitor a human patient'"'"'s pulsatile blood flow, the detector including an infrared (IR) light to detect blood flow changes in an extremity of the patient;
a digital computing element including a digital processor and a memory for storing and instructions and data, the digital computing element being configured to be operatively coupled with the detector to monitor the patient'"'"'s pulsatile blood flow and to calculate a fluid volume measurement therefrom; and
a display coupled with the digital computing element, the display configured to present human-patient fluid volume data thereon in human-readable report format.
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Accused Products
Abstract
A non-invasive patient hydration monitoring system, device, and method are disclosed. The invented device utilizes a non-invasive photo-plethysmographic (PPG) finger- or toe-probe with an infrared transceiver to measure blood perfusion or circulation in an extremity. Such perfusion data is processed using correlation techniques into patient hydration data by a microprocessor and software application that preferably resides in a cell phone or similar portable hardware/firmware/software platform. Individual and successive patients can be quickly screened, baselined, diagnosed, and reported to identify individuals with dehydration conditions that are indicators of more important health issues such as disease and contagion.
22 Citations
20 Claims
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1. A non-invasive human-patient fluid volume monitor comprising:
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a non-invasive electro-optical detector configured to monitor a human patient'"'"'s pulsatile blood flow, the detector including an infrared (IR) light to detect blood flow changes in an extremity of the patient; a digital computing element including a digital processor and a memory for storing and instructions and data, the digital computing element being configured to be operatively coupled with the detector to monitor the patient'"'"'s pulsatile blood flow and to calculate a fluid volume measurement therefrom; and a display coupled with the digital computing element, the display configured to present human-patient fluid volume data thereon in human-readable report format. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-invasive human-patient dehydration diagnostic system comprising:
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a non-invasive electro-optical detector configured to monitor a human patient'"'"'s pulsatile blood flow, the detector including an infrared (IR) light to detect blood flow changes in an extremity of the patient; a patient hydration-derivation engine operatively coupled with the detector, the engine including a patient perfusion data store for storing pulsatile blood flow data from the detector and a correlative data processor for deriving patient hydration data from patient perfusion data and for storing the same in a memory; and a report mechanism operatively coupled with the engine for reporting one or more of the patient'"'"'s perfusion data and the patient'"'"'s derived hydration data in a human-readable report format. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A non-invasive human-patient dehydration diagnostic method comprising:
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placing a photo-plethysmographic (PPG) sensor on a patient'"'"'s extremity; monitoring the patient'"'"'s pulsatile blood blow through the extremity to produce a patient blood flow data stream; deriving a patient hydration data stream from the blood flow data stream, the deriving being performed by a correlation engine; storing the patient hydration data stream in a memory; and reporting the stored patient hydration data stream in human-readable form. - View Dependent Claims (17, 18, 19, 20)
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Specification