Patent ID: 7256888

Claim:
An apparatus for verifying the composition of a fluid contained within a fluid infusion channel, wherein the channel includes a channel wall and an interior through which the fluid is conducted, the apparatus comprising: a source of light located and configured so as to direct light through the fluid contained within the channel; a light sensor located so as to receive the light that was directed through the fluid contained within the channel after it has passed through the fluid, the light sensor providing light sensor signals representative of spectral data of the actual composition of the fluid contained within the channel; and a processor that is adapted to compare the spectral data of the actual composition of the fluid with spectral data of an expected composition of the fluid contained within the channel, and further comprising predetermined spectral data representative of the composition of the channel wall; wherein the processor is further adapted to adjust the spectral data of the actual composition of the fluid within the channel with the predetermined spectral data representative of the channel wall.