Method and apparatus for continuous vitals monitoring

A health monitoring device, comprising:

• a blood pressure sensor including a first fiber Bragg grating (FBG) configured to be placed in contact with a person's skin approximate to an artery or vein and having a first Bragg wavelength;
• a baseline sensor including a second fiber Bragg grating (FBG) configured to be placed in contact with a person's skin away from the artery or vein and having a second Bragg wavelength and providing a measure of a baseline signal;
• a light emitter configured to pulse light waves through the FBGs;
• light sensors configured to receive pulsed light waves;
• a processor including:
• a data acquisition module configured to receive from the light sensor peak wavelengths reflected by the FBGs;
• a comparator configured to determine effective shifts of the first Bragg wavelength and effective shifts of the second Bragg wavelength over time;
• and
• a blood pressure estimator configured to estimate systolic and diastolic blood pressure based on 1) the effective shifts of the first Bragg wavelength corrected for drifts in the baseline signal based on the effective shifts of the second Bragg wavelength, and 2) an output of a physiological attribute monitor;
• and
• a display for providing the estimated systolic and diastolic blood pressure.