US 12,433,981 B2
Peritoneal dialysis system having phase change material (“PCM”) heat exchange
Oskar Erik Frode Styrbjorn Fallman, Lund (SE)
Assigned to Baxter International Inc., Deerfield, IL (US); and Baxter Healthcare SA, Glattpark (CH)
Appl. No. 18/715,519
Filed by BAXTER INTERNATIONAL INC., Deerfield, IL (US); and BAXTER HEALTHCARE SA, Glattpark (CH)
PCT Filed Nov. 30, 2022, PCT No. PCT/US2022/080642
§ 371(c)(1), (2) Date May 31, 2024,
PCT Pub. No. WO2023/102414, PCT Pub. Date Jun. 8, 2023.
Claims priority of provisional application 63/285,233, filed on Dec. 2, 2021.
Prior Publication US 2024/0416019 A1, Dec. 19, 2024
Int. Cl. A61M 1/28 (2006.01)
CPC A61M 1/281 (2014.02) [A61M 2205/3646 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A peritoneal dialysis (“PD”) system comprising:
a PD fluid pump;
a PD fluid heater positioned and arranged to heat fresh PD fluid pumped by the PD fluid pump; and
a phase change material (“PCM”) device positioned and arranged to receive the fresh PD fluid that is heated by the PD fluid heater, the PCM device including a PCM having a melting temperature selected so that the PCM solidifies when the fresh PD fluid is underheated and contacts the PCM, transferring heat to the underheated fresh PD fluid,
wherein the PCM device is further positioned to receive used PD fluid, the melting temperature of the PCM selected so that the PCM melts when the used PD fluid contacts the PCM, removing heat from the used PD fluid.