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:
Sep. 21, 2021

Filed:

Sep. 27, 2019
Applicant:

Illinois Tool Works Inc., Glenview, IL (US);

Inventors:

Colm M. Carmody, Listowel, IE;

Gerard G. Henn, Limerick, IE;

Robert R. Schaser, Chicago, IL (US);

Raymond Jozwik, Hendersonville, TN (US);

David Drake Thompson, Greenville, NC (US);

Michael Grant Leonhard, West Bend, WI (US);

Brendan Casey, Ballinira, IE;

Yash Siddhartha, Chicago, IL (US);

Elizabeth O Connor, Newcastle West, IE;

Assignee:

ILLINOIS TOOL WORKS INC., Glenview, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 31/126 (2006.01); F16K 27/02 (2006.01); F16K 15/02 (2006.01); A61M 39/24 (2006.01);
U.S. Cl.
CPC ...
F16K 31/1268 (2013.01); A61M 39/24 (2013.01); F16K 15/023 (2013.01); F16K 27/0236 (2013.01); A61M 2039/2433 (2013.01); Y10T 137/7838 (2015.04);
Abstract

An infusion set check valve assembly includes a self-contained housing that defines inlet ports and an outlet port. The assembly also includes at least one check valve disposed within the self-contained housing between the outlet channel and at least one of the inlet ports. The at least one check valve is configured to open for a first fluid to flow from a first inlet to a patient line via an outlet channel while a second fluid also flows from a second inlet to the patient line via the outlet channel. The at least one check valve closes to prevent the first fluid from flowing to the patient line via the outlet channel while the second fluid flows to the patient line.


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