Physiological trend monitor

摘要

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.

主权项

1. A system for 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;detect a blood parameter trend based on the sensor signal;generate an audible alarm responsive to a calculated slope of the blood parameter trend; andsuppress the audible alarm responsive to the calculated slope reaching a positive value.