Patent ID: 6954662

Claim:
A non-invasive method of determining the glucose level of blood in a patient comprising the steps of: a. non-invasively measuring the speed of sound through the blood of the patient; b. non-invasively measuring the electrical conductivity of the blood of the patient; c. non-invasively measuring the heat capacity of the blood of the patient; d. calculating the corresponding glucose level for each of the measurements of the speed of sound, electrical conductivity of the blood and heat capacity of the blood; e. comparing the three calculated glucose levels; and f. 1. if all three calculated glucose levels are similar within a predefined tolerance level, then calculating the final glucose level by determining a weighted average of the three calculated glucose levels; or 2. if only two of the three calculated levels are similar within a predefined tolerance level, then calculating the final glucose level by determining a weighted average of only the two similar calculated glucose levels.