SYSTEM FOR MONITORING HEART FAILURE PATIENTS FEATURING NECKLACE-SHAPED SENSOR AND DISPLAY BASED ON A CONVENTIONAL TELEVISION OR MOBILE DEVICE
First Claim
1. A system for monitoring a patient, comprising:
- a sensor configured to be worn on the patient'"'"'s body, the sensor comprising an impedance sensor for measuring an impedance plethysmogram from the patient, an ECG sensor for measuring an ECG QRS complex from the patient, a motion sensor for measuring a motion signal from the patient, and a first wireless transceiver for transmitting information related to impedance, ECG, and motion signals;
a first computer system configured to process;
i) the impedance plethysmogram to determine a first fiducial value and a stroke volume value;
ii) the ECG QRS complex to determine a second fiducial value;
iii) the first and second fiducial values to determine a transit time value; and
iv) the transit time to estimate a blood pressure value;
a second computer system comprising a second wireless transceiver and a video output system, the second wireless transceiver configured to receive the motion signals, stroke volume value, and blood pressure value, or new parameters processed therefrom, and further process them to determine physiological and exercise information that is rendered through the video output system on a display.
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Accused Products
Abstract
The invention provides a system for monitoring a patient that includes a sensor configured to drape around the patient'"'"'s neck. The sensor features an impedance sensor for measuring fluids, an ECG sensor for measuring cardiac activity, and a first wireless transceiver for transmitting this information. Integrated with the sensor is a computer, featuring a second wireless transceiver, video output system, and a computer processing unit (CPU). The CPU is configured to receive control signals from the first wireless transceiver that control a software program and the information related to fluids and cardiac activity. The software program renders a graphical user interface that displays the information through the video output system. The system also includes a conventional television set or mobile device that interfaces to the computer through the video output system and renders the graphical user interface.
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Citations
21 Claims
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1. A system for monitoring a patient, comprising:
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a sensor configured to be worn on the patient'"'"'s body, the sensor comprising an impedance sensor for measuring an impedance plethysmogram from the patient, an ECG sensor for measuring an ECG QRS complex from the patient, a motion sensor for measuring a motion signal from the patient, and a first wireless transceiver for transmitting information related to impedance, ECG, and motion signals; a first computer system configured to process;
i) the impedance plethysmogram to determine a first fiducial value and a stroke volume value;
ii) the ECG QRS complex to determine a second fiducial value;
iii) the first and second fiducial values to determine a transit time value; and
iv) the transit time to estimate a blood pressure value;a second computer system comprising a second wireless transceiver and a video output system, the second wireless transceiver configured to receive the motion signals, stroke volume value, and blood pressure value, or new parameters processed therefrom, and further process them to determine physiological and exercise information that is rendered through the video output system on a display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification