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:
Aug. 12, 2025

Filed:

Jun. 28, 2022
Applicant:

Fenwal, Inc., Lake Zurich, IL (US);

Inventor:

Benjamin E. Kusters, Pleasant Prairie, WI (US);

Assignee:

Fenwal, Inc., Lake Zurich, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/661 (2022.01); G01F 1/00 (2022.01); G01F 1/66 (2022.01); G01F 1/704 (2006.01); A61M 1/36 (2006.01);
U.S. Cl.
CPC ...
G01F 1/661 (2013.01); G01F 1/00 (2013.01); G01F 1/662 (2013.01); G01F 1/704 (2013.01); A61M 1/3693 (2013.01);
Abstract

An optical sensor device configured for use in combination with a fluid flowing through a tubing, the optical sensor device includes a light source configured to emit a light, with at least a portion of the light being exposed to a fluid in the tubing and reflected, an optical sensor configured to receive at least a portion of the reflected light and analyze at least a portion of the received reflected light to determine a reflectance measurement, and a controller configured to correlate the reflectance measurement to an input particulate level and generate an output indicative of the fluid flow rate corresponding to the reflectance measurement. Also disclosed is a method of optically measuring fluid flow rate in a fluid processing system including optically monitoring fluid flow through a transparent portion of a tubing by measuring light reflectance of particles in the fluid.


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