Physiological trend monitor
First Claim
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1. A system for non-invasively monitoring physiological trends, the system comprising:
- a processor configured to;
receive a sensor signal from an optical sensor coupled with a patient, the sensor signal responsive to light attenuated by body tissue of the patient;
calculate a physiological parameter and a physiological parameter trend based on the sensor signal;
output a value of the physiological parameter for presentation on a display; and
output an audible alarm once the physiological parameter reaches a threshold if the physiological parameter trend is not trending upward.
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Abstract
A physiological trend monitor has a sensor signal responsive to multiple wavelengths of light transmitted into a tissue site. The transmitted light is detected after attenuation by pulsatile blood flow within the tissue site. A processor has an input responsive to the sensor signal and a physiological parameter output. Features are extracted from the physiological parameter output. Criteria are applied to the features. An alarm output is generated when the criteria are satisfied.
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9 Claims
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1. A system for non-invasively monitoring physiological trends, the system comprising:
a processor configured to; receive a sensor signal from an optical sensor coupled with a patient, the sensor signal responsive to light attenuated by body tissue of the patient; calculate a physiological parameter and a physiological parameter trend based on the sensor signal; output a value of the physiological parameter for presentation on a display; and output an audible alarm once the physiological parameter reaches a threshold if the physiological parameter trend is not trending upward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
Specification