Non-invasive optical physiological differential pathlength sensor

US11653862B2 · kind B2 · utility

Assignee

• Cercacor Laboratories, Inc. · US

Inventors

• Cristiano Dalvi · Irvine, US
• Ferdyan Lesmana · Irvine, US
• Hung Vo · Garden Grove, US
• Jeroen Poeze · Mission Viejo, US
• Jesse Chen · Lake Forest, US
• Kevin Hughes Pauley · Lake Forest, US
• Mathew Paul · Irvine, US
• Sean Merritt · Lake Forest, US
• Thomas B. Blank · Chandler, US
• Massi Joe E. Kiani · Laguna Niguel, US

Key dates

• Filing date: May 20, 2016
• Grant date: May 23, 2023
• Expiry date: May 20, 2036

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2562/0242
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An optical physiological sensor configured to perform high speed spectral sweep analysis of sample tissue being measured to non-invasively predict an analyte level of a patient. An emitter of the optical physiological sensor can be regulated to operate at different temperatures to emit radiation at different wavelengths. Variation in emitter drive current, duty cycle, and forward voltage can also be used to cause the emitter to emit a range of wavelengths. Informative spectral data can be obtained during the sweeping of specific wavelength regions of sample tissue.