US 12,409,258 B2
Pressure sensors, including pressure sensors for automated peritoneal dialysis systems, and associated systems, devices, and methods
Michael Wollowitz, Chatham, NY (US); Abdul Qadeer, Lahore (PK); and Farrukh Usman, Chatham, NY (US)
Assigned to Byonyks Medical Devices, Inc., Itasca, IL (US)
Appl. No. 18/017,619
Filed by Byonyks Medical Devices, Inc., Itasca, IL (US)
PCT Filed Jul. 27, 2021, PCT No. PCT/US2021/071012
§ 371(c)(1), (2) Date Jan. 23, 2023,
PCT Pub. No. WO2022/027036, PCT Pub. Date Feb. 3, 2022.
Claims priority of provisional application 63/056,879, filed on Jul. 27, 2020.
Prior Publication US 2023/0293796 A1, Sep. 21, 2023
Int. Cl. A61M 1/28 (2006.01); A61M 1/14 (2006.01); A61M 1/16 (2006.01); A61M 1/36 (2006.01); F16K 7/12 (2006.01); G01L 7/08 (2006.01); G01L 9/00 (2006.01)
CPC A61M 1/282 (2014.02) [A61M 1/1524 (2022.05); A61M 1/154 (2022.05); A61M 1/159 (2022.05); A61M 1/16 (2013.01); A61M 1/28 (2013.01); A61M 1/36 (2013.01); A61M 1/3639 (2013.01); F16K 7/12 (2013.01); G01L 7/08 (2013.01); G01L 9/0041 (2013.01); A61M 2205/273 (2013.01); A61M 2205/332 (2013.01); A61M 2205/3327 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3344 (2013.01)] 20 Claims
OG exemplary drawing
 
11. A method of measuring pressure of fluid flowing through a disposable set of an automated peritoneal dialysis (APD) system, the method comprising:
aligning a pressure sensor of the APD system with a diaphragm of the disposable set;
deforming the diaphragm using an indenter of the pressure sensor such that
(a) a curved surface of an indenter of the pressure sensor contacts an outer surface of the diaphragm, and
(b) a load cell of the pressure sensor operably connected to the indenter measures a zero-offset force corresponding to a restoring force applied against the indenter by the diaphragm; and
measuring, using the pressure sensor, a pressure of a fluid flowing through the disposable set and in contact with an inner surface of the diaphragm opposite the outer surface.