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:
Mar. 31, 2026

Filed:

Dec. 28, 2021
Applicant:

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

Inventors:

Matthew J. Doyle, Concord, CA (US);

Robert Zimmerman, Waltham, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/16 (2006.01); G01F 9/00 (2006.01); G01F 22/02 (2006.01); G08B 21/18 (2006.01);
U.S. Cl.
CPC ...
A61M 1/1605 (2014.02); A61M 1/1668 (2014.02); G01F 9/008 (2013.01); G01F 22/02 (2013.01); A61M 2205/3303 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3396 (2013.01); A61M 2205/502 (2013.01); G08B 21/182 (2013.01);
Abstract

A method includes receiving, by a processor of a dialysis machine, a dialysate flow rate, a bicarbonate setting value, a signal from a pressure sensor configured to measure a pressure within a container, and a signal indicating a state of a fill valve; determining, based on the signal received from the pressure sensor and the state of the fill valve, fill parameters; determining a volume of the container based on at least two of the fill parameters; determining a depletion time in which the concentrate will be depleted from the container based on the volume of the container, the dialysate flow rate, and the bicarbonate setting value; determining, based on the depletion time, an amount of time remaining before the concentrate will be depleted from the container; and causing the dialysis machine to indicate the amount of time remaining before the concentrate will be depleted from the container.


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