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. 15, 2018

Filed:

Jul. 25, 2014
Applicant:

Christie Digital Systems Usa, Inc., Cypress, CA (US);

Inventors:

Gopal Valsan, Brampton, CA;

Sina Zarei Mahmoodabadi, Waterloo, CA;

Robert Benjamin Wagner, Kitchener, CA;

David Priest, Cambridge, CA;

Robert Amelard, Waterloo, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/1455 (2006.01); A61B 5/02 (2006.01); A61B 5/00 (2006.01); A61B 5/026 (2006.01);
U.S. Cl.
CPC ...
A61B 5/14551 (2013.01); A61B 5/02007 (2013.01); A61B 5/0261 (2013.01); A61B 5/1455 (2013.01); A61B 5/489 (2013.01); A61B 5/70 (2013.01); A61B 5/7207 (2013.01); A61B 5/742 (2013.01); A61B 2576/02 (2013.01);
Abstract

A multispectral medical imaging device includes illumination devices arranged to illuminate target tissue. The illumination devices emit light of different near-infrared wavelength bands. The device further includes an objective lens, a near-infrared image sensor positioned to capture image frames reflected from the target tissue, and a visible-light image sensor positioned to capture image frames reflected from the target tissue. A processor is configured to modulate near-infrared light output of the plurality of illumination devices to illuminate the target tissue. The processor is further configured to determine reflectance intensities from the image frames captured by the near-infrared image sensor and to generate a dynamic tissue oxygen saturation map of the target tissue using the reflectance intensities. The device further includes an output device connected to the processor for displaying the dynamic tissue oxygen saturation map.


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