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 9566377 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 14, 2017

Filed:

Mar. 15, 2013
Applicant:

Fresenius Medical Care Holdings, Inc., Waltham, MA (US);

Inventors:

Ross Peter Jones, Cambridge, GB;

Pranav Chopra, Cambridge, MA (US);

Rupert Menzies, Milton, GB;

Mark David Tuckwell, Hertfordshire, GB;

Martin Joseph Crnkovich, Walnut Creek, CA (US);

Lynn Jensen, Syracuse, UT (US);

Shashikant Dattatraya Kalaskar, Ogden, UT (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/36 (2006.01); A61B 5/055 (2006.01); G01N 24/08 (2006.01); A61M 1/16 (2006.01); A61B 5/145 (2006.01); G01R 33/30 (2006.01); G01R 33/34 (2006.01); G01R 33/383 (2006.01);
U.S. Cl.
CPC ...
A61M 1/3621 (2013.01); A61B 5/055 (2013.01); A61B 5/14546 (2013.01); A61M 1/1607 (2014.02); A61M 1/1609 (2014.02); A61M 1/3609 (2014.02); G01N 24/08 (2013.01); A61M 2205/12 (2013.01); A61M 2205/3317 (2013.01); A61M 2230/20 (2013.01); G01R 33/302 (2013.01); G01R 33/34053 (2013.01); G01R 33/383 (2013.01);
Abstract

This disclosure relates to medical fluid sensors and related systems and methods. In certain aspects, a method includes reading an indicia of a medical fluid cartridge to determine a volume of a fluid passageway of the medical fluid cartridge indicated by the indicia, receiving radio frequency energy generated by excited atoms in medical fluid in the fluid passageway of the medical fluid cartridge, and determining a concentration of a substance in the medical fluid based on the determined volume of the fluid passageway of the medical fluid cartridge indicated by the indicia and the received radio frequency energy generated by the excited atoms in the medical fluid in the fluid passageway of the medical fluid cartridge.


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