Patent ID: 9316554
Filing Date: 2016-04-19
CPC Classification: G01N,Y10T

Claim Text:
1. An in situ analyte-sensing fiber optic instrument, comprising (i) a tube having a distal end and an inner surface defining a lumen, (ii) an analyte-partial-pressure-sensitive photoluminescent probe located proximate a distal end of the lumen and in fluid communication with a fluid occupying a volume external to the distal end of the tube through an opening in the tube, and (iii) at least one fiber optic filament having an outer surface, extending axially along the length of the lumen and in optical communication with the analyte-partial-pressure-sensitive photoluminescent probe, the instrument further comprising: (a) a void volume channel extending axially along the length of the lumen between the inner surface of the tube and the outer surface of the at least one fiber optic filament, and (b) a pressure sensor in pressure communication via the void volume channel in the lumen of the tube with the fluid from the volume communicating with the analyte-partial-pressure-sensitive photoluminescent probe via the opening in the tube.