Patent ID: 7433030
Filing Date: 2008-10-07
Classification: A61L,A61M,C02F,G01J

Abstract:
1. Apparatus for treating a biological fluid comprising: a fluid treatment chamber for receiving said biological fluid; at least one light source with a plurality of lamps, said light source disposed either above or below said fluid treatment chamber; a light sensing system with a plurality of light sensors for sensing the amount of light emitted by said plurality of lamps, wherein each light sensor of said plurality of light sensors is disposed adjacently to at least one of said plurality of lamps, and wherein each light sensor in the plurality of light sensors provides a signal consisting of a frequency that is related to the sensed light intensity; and a first multiplexer to receive the frequency signals from each of the plurality of light sensors and to multiplex each of the frequency signals from the plurality of light sensors into a first multiplexed frequency signal that is related to the sensed light intensity.