Patent ID: 7671974
Filing Date: 2010-03-02
Classification: A61B,G01N

Abstract:
1. An optical sensor for determining optical properties of a solution, said sensor comprising: a cuvette body having an enclosed flow passage for the solution, wherein the flow passage further comprises a solution inlet and a solution outlet and a cuvette between the solution inlet and the solution outlet; opposite sidewalls of the cuvette body included in the flow passage and between the solution inlet and the solution outlet; a light source projecting light of a predetermined wavelength along a light path through the cuvette to a light sensor, wherein the solution flows through the flow passage of the cuvette body; transparent windows in each of the opposite sidewalls to the cuvette body and aligned with the light path, wherein a width of each transparent window is narrower than a width of the sidewall, and wherein each sidewall has a inner sidewall surface in contact with the solution and the inner sidewall surface has a length in a direction of flow and the length is longer than the width of the inner sidewall surface of the sidewall, and wherein the inner sidewall surface is opaque to the light, and wherein each of said transparent windows have a perimeter surrounded by the opaque inner sidewall surface.