Patent ID: 6611634
Filing Date: 2003-08-26
Classification: G01N

Abstract:
An apparatus for analyzing a biological fluid, comprising:a waveguide, comprising: a planar portion with opposite first and second planar surfaces and opposite front and rear ends, said planar portion capable of transmitting light from said front end to said rear end; at least one ramp comprising a lens for receiving light, said at least one ramp in optical communication with and extending from said front end of said planar portion, a surface of said at least one ramp being oriented at an angle other than 0Â° from a plane of said planar portion; at least one type of capture molecule immobilized relative to said first planar surface of said planar portion of said waveguide; a light source oriented so as to direct at least one wavelength of light into said lens; and a light detector oriented to receive light emitted through said second planar surface.