Methods and systems for determining a probe-off condition in a medical device
AssigneeCovidien LP
InventorsPaul Stanley Addison, James Nicholas Watson
Life of this patent
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Abstract
A physiological monitoring system may determine a probe-off condition. A physiological sensor may be used to emit one or more wavelengths of light. A received light signal may be processed to obtain a light signal corresponding to the emitted light and an ambient signal. The signals may be analyzed to identify similar behavior. The system may determine whether the physiological sensor is properly positioned based on the analysis.
Claims22
A method for determining whether a physiological sensor is properly positioned on a subject, the method comprising:
- receiving a light signal using the physiological sensor;
- processing, using processing equipment, the light signal to obtain a first signal corresponding to ambient light;
- processing, using the processing equipment, the light signal to obtain a second signal corresponding to an emitted photonic signal and ambient light;
- analyzing, using the processing equipment, the first signal and the second signal to identify similar behavior;
- and
- determining, using the processing equipment, that the physiological sensor is not properly positioned based on the analysis.
A system for determining whether a physiological sensor is properly positioned on a subject, the system comprising:
- processing equipment configured to:
- receive a light signal from the physiological sensor;
- process the light signal to obtain a first signal corresponding to ambient light,
- process the light signal to obtain a second signal corresponding to an emitted photonic signal and ambient light,
- analyze the first signal and the second signal to identify similar behavior;
- and
- determine that the physiological sensor is not properly positioned based on the analysis.
Dependencies are inferred from the claim text.