ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,458,739, issued on Nov. 4, was assigned to BAXTER INTERNATIONAL INC. (Deerfield, Ill.) and BAXTER HEALTHCARE SA (Glattpark, Switzerland).

"Peritoneal dialysis system having air-aided pumping sequences" was invented by Oskar Erik Frode Styrbjorn Fallman (Lund, Sweden), Bjorn Ericson (Lund, Sweden) and Olof Christer Jansson (Vellinge, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A peritoneal dialysis ("PD") system having an air-aided pumping sequence is disclosed herein. In an example, a PD system includes a housing, a PD fluid pump housed by the housing, an airtrap, a fluid line extending from the airtrap, a fluid line valve positioned and arrang...