The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 05, 2026

Filed:

Aug. 20, 2021
Applicant:

University Health Network, Toronto, CA;

Inventors:

Ralph S. Dacosta, Toronto, CA;

Brian C. Wilson, Toronto, CA;

Kai Zhang, Scarborough, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/00 (2006.01); A61B 5/01 (2006.01); A61B 10/00 (2006.01); G01N 21/64 (2006.01);
U.S. Cl.
CPC ...
A61B 5/0071 (2013.01); A61B 5/0059 (2013.01); A61B 5/01 (2013.01); A61B 5/445 (2013.01); A61B 5/72 (2013.01); A61B 5/742 (2013.01); G01N 21/6456 (2013.01); G01N 21/6486 (2013.01); A61B 5/0042 (2013.01); A61B 5/4519 (2013.01); A61B 10/00 (2013.01); G01N 21/6408 (2013.01); G01N 2021/6421 (2013.01); G01N 2021/6471 (2013.01); G01N 2201/0221 (2013.01); Y02A 90/10 (2018.01);
Abstract

A method for fluorescence-based imaging of a target to detect contamination and/or pollutants is disclosed. The method includes labelling a pre-selected biomarker at the target, illuminating the target with excitation light emitted by an excitation light source and having at least one wavelength or wavelength band causing at least the pre-selected biomarker to fluoresce, detecting fluorescence emissions of at least the pre-selected biomarker with an image detector of a handheld imaging device, and determining the presence, location, and/or quantity of contamination and/or pollutants on and/or in the illuminated target based on the detected fluorescence emissions of at least the pre-selected biomarker.


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