System and method for measuring serum phosphate levels using portable reader device

US11460395B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Aydogan Ozcan · Los Angeles, US
• Aniruddha Ray · Bengaluru, IN
• Hyouarm Joung · Los Angeles, US
• Derek Tseng · Buena Park, US
• Isidro B. Salusky · Los Angeles, US

Key dates

• Filing date: Jun 12, 2020
• Grant date: Oct 4, 2022
• Expiry date: Feb 11, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/104
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A portable colorimetric assay system includes an opto-mechanical reader configured to be detachably mounted to a mobile phone having a camera or other camera-containing portable electronic device. The opto-mechanical reader includes one or more light sources configured to illuminate a test sample holder and control sample holder disposed in the opto-mechanical reader along an optical path aligned with a camera of the mobile phone or other camera-containing portable electronic device. One or more serum separation membranes are disposed in the opto-mechanical reader and define a sample receiving pad configured to receive a blood sample. A moveable serum collection membrane is membrane is also disposed in the reader and is configured to contact the sample receiving pad in a first position and moveable to a second position where the serum collection membrane is disposed inside the test sample holder.