Patient monitoring system
AssigneeWelch Allyn, Inc.
InventorsJohn A. Lane, Steven D. Baker, Rachel Williamson
Life of this patent
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Abstract
A subject monitoring system operates to detect a current status of a subject in a subject arrangement area, such as on a bed, and predict an upcoming status of the subject. The system includes a subject status detection device that may use a radar signal. A radar signal is transmitted toward the subject and is used to detect a subject status, such as a subject position, a subject incontinence condition, and a physiological condition of the subject. One example of the radar signal includes a millimeter wave.
Claims20
A system for monitoring a subject status, the system comprising:
- a subject arrangement area for arranging a subject thereon;
- a signal transmitter configured to transmit a radar signal toward the subject arranged on the subject arrangement area;
- a signal receiver configured to receive the radar signal;
- and
- a signal analysis device configured to detect a temporal variation of the radar signal and determine a subject status based on the temporal variation.
A method for monitoring a subject status, the method comprising:
- arranging a subject in a subject arrangement area;
- transmitting a radar signal toward the subject;
- receiving the radar signal;
- monitoring a temporal variation of the radar signal;
- and
- determining a subject status based on the temporal variation.
A system for monitoring a subject status, the system comprising:
- a processing device configured to control operation of the system;
- a signal transmitter configured to transmit a radar signal having a band of spectrum between 30 GHz and 300 GHz.;
- a signal receiver configured to receive the radar signal;
- and
- a computer readable storage medium storing software instructions that, when executed by the processing device, cause the system to:
- transmit the radar signal toward a subject using the signal transmitter;
- receive the radar signal using the signal receiver;
- identify at least one body portion of the subject based on the received radar signal;
- monitor a temporal variation of the radar signal;
- predict an upcoming status of the subject based on the temporal variation;
- and
- determine a wet spot around the subject based on the temporal variation.
Dependencies are inferred from the claim text.