Patent Document ID: 9943256
Application ID: 14260948
Patent Flag: 1

Claim One:
1. A continuous glucose monitoring system comprising: an orthogonally redundant glucose sensor device for determining the concentration of glucose in a body of a user, said sensor device comprising an optical glucose sensor and an electrochemical glucose sensor; and an external transmitter operatively coupled to said electrochemical and optical glucose sensors and having a housing, wherein the transmitter includes sensor electronics in said housing, said sensor electronics including at least one physical microprocessor that is configured to: receive a first signal from the electrochemical glucose sensor and a second signal from the optical glucose sensor; perform a respective integrity check on each of said first and second signals; determine whether the first signal can be calibrated, and whether the second signal can be calibrated, wherein said determination is made based on whether the first signal and the second signal pass or fail their respective integrity checks; if it is determined that the first signal can be calibrated, calibrate said first signal to generate an electrochemical sensor glucose (SG) value; if it is determined that the second signal can be calibrated, calibrate said second signal to generate an optical sensor glucose (SG) value; and fuse said electrochemical SG value and said optical SG value to calculate a single, fused sensor glucose value for the orthogonally redundant glucose sensor device, wherein said optical glucose sensor includes a lightguide on a first respective substrate, said electrochemical glucose sensor includes at least one electrode on a second respective substrate, and said first and second respective substrates are integrated into an integrated flex circuit; and wherein said lightguide is disposed in an interior of said integrated flex circuit and said at least one electrode is disposed on an external surface of said integrated flex circuit.