ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,440, issued on June 23, was assigned to Vantive US Healthcare LLC (Deerfield, Ill.) and Vantive Healthcare GmbH (Glattpark, Switzerland).

"Dialysis system having motor driver pressure estimation of fluid within a patient line" was invented by Michael Pettersson (Malmo, Sweden), Andreas Winquist (Sodra Sandby, Sweden) and Per Andersson (Fureland, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A dialysis system having motor driven pressure estimation of fluid within a patient line is disclosed. A peritoneal dialysis ("PD") system includes a fluid pump and a patient line that fluidly couples the fluid pump to an indwelling catheter leading into ...