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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.

Patent No.:

US 11703443 B1

PDFFull Text
Date of Patent:
Jul. 18, 2023

Filed:

Nov. 04, 2022

Flow cytometer

Applicant:

Iris International, Inc., Chatsworth, CA (US);

Inventor:

Yong Qin Chen, San Jose, CA (US);

Assignee:

IRIS INTERNATIONAL, INC., Chatsworth, CA (US);

Attorney:

Norton Rose Fulbright US LLP

Primary Examiner:

David P Porta

Assistant Examiner:

Meenakshi S Sahu

Int. Cl.
CPC ...
G01N 15/14 (2006.01); G02B 6/293 (2006.01); G02B 6/26 (2006.01); F04B 11/00 (2006.01); G01N 35/10 (2006.01); G02B 21/04 (2006.01); G02B 21/36 (2006.01); G02B 27/00 (2006.01); G01N 15/10 (2006.01);
U.S. Cl.
CPC ...
G01N 15/1436 (2013.01); F04B 11/0025 (2013.01); G01N 15/1434 (2013.01); G01N 15/1459 (2013.01); G01N 35/1095 (2013.01); G02B 6/26 (2013.01); G02B 6/29365 (2013.01); G02B 21/04 (2013.01); G02B 21/361 (2013.01); G02B 27/0025 (2013.01); G01N 2015/1006 (2013.01); G01N 2015/144 (2013.01); G01N 2015/1452 (2013.01);
Abstract

The disclosed flow cytometer includes a wavelength division multiplexer (WDM). The WDM includes an extended light source providing light that forms an object, a collimating optical element that captures light from the extended light source and projects a magnified image of the object as a first light beam, and a first focusing optical element configured to focus the first light beam to a size smaller than the object of the extended light source to a first semiconductor detector. The disclosed flow cytometer further includes a composite microscope objective to direct light emitted by a particle in a flow channel in a viewing zone of the composite microscope to the extended light source, a fluidic system and a peristaltic pump configured to supply liquid sheath and liquid sample to the flow channel, and a laser diode system to illuminate the particle in the flow channel.

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