Body-worn monitor for measuring respiration rate
AssigneeSotera Wireless, Inc.
InventorsMatt Banet, Marshal Dhillon, Devin McCombie
Life of this patent
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Abstract
The invention provides a multi-sensor system that uses an algorithm based on adaptive filtering to monitor a patient's respiratory rate. The system features an impedance pneumography sensor and a motion sensor (e.g., an accelerometer) configured to attach to the patient's torso and measure therefrom a motion signal. The system further comprises a processing system, configured to operably connect to the impedance pneumography sensor and motion sensor, and to determine a respiration rate value by applying filter parameters obtained from the impedance pneumography sensor signals to the motion sensor signals.
Claims1
A system for monitoring a patient's respiratory rate, comprising:
- a sensor unit configured to be mounted on the patient's torso and comprising:
- a first connector operably connected to an impedance pneumography circuit and configured to connect directly to a first electrode attached to the patient;
- a first cable operably connected to the impedance pneumography circuit and configured to connect a second electrode attached to the patient;
- an impedance pneumography circuit configured to receive electrical signals from the first and second electrodes and process them to generate an impedance pneumography signal representing the patient's respiratory rate;
- a motion sensor configured to generate a motion signal representing the patient's respiratory rate;
- a processing system configured to receive the impedance pneumography and motion signals and collectively process them to determine the patient's respiratory rate;
- and
- a transceiver system configured to receive a value for respiratory rate and transmit it to a remote system.
Dependencies are inferred from the claim text.