US 12,420,001 B2
Calculating a depletion time during dialysis
David Yuds, Hudson, NH (US); Martin Joseph Crnkovich, Walnut Creek, CA (US); and Ken Chhi, Fremont, CA (US)
Assigned to Fresenius Medical Care Holdings, Inc., Waltham, MA (US)
Filed by Fresenius Medical Care Holdings, Inc., Waltham, MA (US)
Filed on Sep. 16, 2021, as Appl. No. 17/477,223.
Application 17/477,223 is a division of application No. 16/012,945, filed on Jun. 20, 2018, granted, now 11,123,464.
Prior Publication US 2022/0001086 A1, Jan. 6, 2022
Int. Cl. A61M 1/16 (2006.01); G01F 9/00 (2006.01)
CPC A61M 1/1607 (2014.02) [A61M 1/1613 (2014.02); G01F 9/001 (2013.01); A61M 2205/15 (2013.01); A61M 2205/18 (2013.01); A61M 2205/3317 (2013.01); A61M 2205/3334 (2013.01); A61M 2205/3386 (2013.01); A61M 2205/502 (2013.01); A61M 2205/583 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method comprising:
receiving a container of a definite volume, the container containing a concentrate;
determining the volume of the container using a pressure sensor, a controller, a timer, and a fluid source upstream of the pressure sensor;
calculating a depletion time in which the concentrate will be depleted from the container;
comparing the depletion time with a prescribed treatment time;
determining that the depletion time is less than the prescribed treatment time based on comparing the depletion time with the prescribed treatment time; and
in response to determining that the depletion time is less than the prescribed treatment time, notifying a user that the depletion time is less than the prescribed treatment time.