Patent ID: 8821621
Filing Date: 2014-09-02
Classification: A62B,G01N,Y10S

Abstract:
1. A filter system comprising: a filter cartridge housing having a removable housing portion; a filter medium disposed within the filter cartridge housing; a optical analyte sensor comprising a detection medium that changes at least one of its optical characteristics in response to an analyte, the optical analyte sensor disposed within the filter cartridge housing and attached to a wall of the filter cartridge housing such that the detection medium is in fluid communication with the filter medium; and an optical reader comprising at least one light source and at least one detector, the optical reader attached to the removable housing portion such that, when the removable housing portion is attached to the filter cartridge housing, at least a portion of light emitted by at least one light source is reflected from the optical analyte sensor and captured by at least one detector,