Patent ID: 6157442
Filing Date: 2000-12-05
Classification: A61B,G01N

Abstract:
A sensor device for measuring a concentration of a substance within a sample comprising:a sensor comprising an optical fiber portion having a first end and a second end, the second end having a tip portion attached thereto and an active material incorporated within the tip portion, the tip portion adapted to be inserted into a sample, the active material capable of interacting with a substance within a sample;a light source coupled to the first end of the sensor for emitting a beam of light into and through the sensor and into a sample, the emitted beam of light having a wavelength and the active material interacting with a substance within a sample to change the wavelength of the emitted beam of light to produce a reflected beam of light and the sensor for transmitting the reflected beam of light out of the second end thereof;means for receiving the reflected beam of light from the second end of the sensor for producing a signal indicative of the reflected beam of light; anda processor for receiving the signal indicative of the reflected beam of light and for processing the signal to determine the concentration of a substance within a sample.