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.:
Date of Patent:
Mar. 21, 2017
Filed:
Jan. 30, 2015
Applicant:
Fresenius Medical Care Holdings, Inc., Waltham, MA (US);
Inventors:
Stephen R. Ash, Lafayette, IN (US);
Thomas A. Sullivan, Pine Village, IN (US);
David Carr, West Lafayette, IN (US);
Michael James Beiriger, Pittsburgh, PA (US);
Assignee:
Fresenius Medical Care Holdings, Inc., Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/49 (2006.01); G01N 21/35 (2014.01); G01N 33/00 (2006.01); A61M 1/16 (2006.01); G01N 21/3504 (2014.01); A61M 1/36 (2006.01); A61M 1/30 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0067 (2013.01); A61M 1/1607 (2014.02); A61M 1/1609 (2014.02); A61M 1/1656 (2013.01); A61M 1/1658 (2013.01); A61M 1/305 (2014.02); A61M 1/3612 (2014.02); G01N 21/3504 (2013.01); G01N 33/4925 (2013.01); A61M 1/1696 (2013.01); A61M 2205/3306 (2013.01); A61M 2205/3324 (2013.01); A61M 2230/202 (2013.01); A61M 2230/208 (2013.01); G01N 2033/0068 (2013.01); Y10T 436/117497 (2015.01); Y10T 436/171538 (2015.01); Y10T 436/175383 (2015.01); Y10T 436/204998 (2015.01);
Abstract
In one aspect of the invention, a method includes determining an amount of carbon dioxide (CO) in dialysate flowing through a dialysis system using a COsensor associated with the dialysis system, determining, using a pH sensor associated with the dialysis system, a pH level of the dialysate, and calculating a level of bicarbonate in the dialysate based at least in part on the determined amount of COmeasured in the gas and the determined pH level of the dialysate.