Methods and devices for detecting intensity of light with translucent detector

US10750984B2 · kind B2 · utility

Assignee

• Cercacor Laboratories, Inc. · US

Inventors

• Kevin Hughes Pauley · Lake Forest, US
• Cristiano Dalvi · Irvine, US
• Hung Vo · Garden Grove, US
• Jesse Chen · Lake Forest, US
• Ferdyan Lesmana · Irvine, US
• Jeroen Poeze · Mission Viejo, US
• Sean Merritt · Lake Forest, US

Key dates

• Filing date: Dec 21, 2017
• Grant date: Aug 25, 2020
• Expiry date: Jul 18, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2021/3181
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An optical measurement device includes a light source, a first detector, and a second detector. The light source emits light to a measurement site of a patient and one or more detectors detect the light from the light source. At least a portion of a detector is translucent and the light passes through the translucent portion prior to reaching the measurement site. A detector receives the light after attenuation and/or reflection or refraction by the measurement site. A processor determines a light intensity of the light source, a light intensity through a tissue site, or a light intensity of reflected or refracted light based on light detected by the one or more detectors. The processor can estimate a concentration of an analyte at the measurement site or an absorption or reflection at the measurement site.