Physiological trend monitor
AssigneeMasimo Corporation
InventorAmmar Al-Ali
Life of this patent
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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.
Claims10
A system for non-invasively monitoring physiological trends, the system comprising:
- a processor comprising a sensor signal input and a display driver, wherein the processor is configured to:
- receive, at the sensor signal input, 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, by the display driver, 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.
A system for non-invasively monitoring physiological trends, the system comprising:
- a processor comprising a sensor signal input and a display driver, wherein the processor is configured to:
- receive, at the sensor signal input, 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 based on the sensor signal;
- output, by the display driver, a value of the physiological parameter for presentation on a display;
- and
- output an audible alarm once the physiological parameter reaches a threshold if a physiological parameter trend of physiological parameter values is not trending upward.
Dependencies are inferred from the claim text.