US 12,458,739 B2
Peritoneal dialysis system having air-aided pumping sequences
Oskar Erik Frode Styrbjorn Fallman, Lund (SE); Bjorn Ericson, Lund (SE); and Olof Christer Jansson, Vellinge (SE)
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 Dec. 28, 2022, as Appl. No. 18/147,060.
Claims priority of provisional application 63/294,259, filed on Dec. 28, 2021.
Prior Publication US 2023/0201441 A1, Jun. 29, 2023
Int. Cl. A61M 1/28 (2006.01); A61M 1/16 (2006.01); A61M 1/36 (2006.01)
CPC A61M 1/282 (2014.02) [A61M 1/1682 (2014.02); A61M 1/285 (2013.01); A61M 1/287 (2013.01); A61M 1/3638 (2014.02); A61M 2205/75 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A peritoneal dialysis (“PD”) system comprising:
a PD fluid pump;
an airtrap;
a fluid line extending from the airtrap;
a fluid line valve positioned and arranged to operate with the fluid line;
a gas line extending from an upper portion of the airtrap;
a gas line valve positioned and arranged to operate with the gas line; and
a control unit configured to cause the fluid line valve to close, the gas line valve to open, and the PD fluid pump to pump gas from the airtrap into the gas line after a patient drain to create a pocket of gas in the fluid line and push residual used PD fluid towards a drain line.