US 12,458,738 B2
Intraperitoneal pressure (“IPP”) measurement methods, apparatuses, and systems
Sukhraaj Basati, Bartlett, IL (US); Jorge Augusto Del Castillo, Des Plaines, IL (US); Joanna Rita Yanaga, Arlington Heights, IL (US); Chris John Grivas, Crystal Lake, IL (US); and John Sterling Norman, Gurnee, IL (US)
Assigned to Baxter International Inc., Deerfield, IL (US); and Baxter Healthcare SA, Glattpark (CH)
Filed by BAXTER INTERNATIONAL INC., Deerfield, IL (US); and BAXTER HEALTHCARE SA, Glattpark (CH)
Filed on Nov. 3, 2021, as Appl. No. 17/517,853.
Claims priority of provisional application 63/109,635, filed on Nov. 4, 2020.
Prior Publication US 2022/0133971 A1, May 5, 2022
Int. Cl. A61M 1/28 (2006.01)
CPC A61M 1/282 (2014.02) [A61M 1/285 (2013.01); A61M 2205/3303 (2013.01); A61M 2205/332 (2013.01); A61M 2205/3344 (2013.01); A61M 2205/3382 (2013.01); A61M 2230/06 (2013.01); A61M 2230/30 (2013.01); A61M 2230/40 (2013.01); A61M 2230/63 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An intraperitoneal pressure (“IPP”) measurement system comprising:
a fluid container containing peritoneal dialysis (“PD”) fluid;
a transfer set and catheter in fluid communication with the fluid container and configured to fluidly communicate with a patient's peritoneal cavity to enable PD fluid to be provided to the patient's peritoneal cavity;
a pressure sensor configured to contact the transfer set or the catheter, the pressure sensor configured to transmit output data indicative of an IPP within the patient's peritoneal cavity, the pressure sensor including
a pressure element configured to measure a pressure imparted by a fluid within the transfer set or catheter, and
a pressure amplifier having a first side that contacts a portion of the transfer set or catheter and a second side that contacts the pressure element, the first side having a greater diameter or surface area compared to the second side; and
a processor communicatively coupled to the pressure sensor, the processor configured to
receive the output data indicative of the IPP within the patient's peritoneal cavity, and
at least one of use the output data indicative of the IPP to determine a fill volume parameter for a PD treatment for the patient, or cause the output data indicative of the IPP to be displayed to enable a determination of the fill volume parameter.