Fresenius Medical Care Holdings, Inc.

Regis Joseph Winniewicz, Jr

Douglas Mark Zatezalo

Tom Monahan

Nigel Wright

Michael John Zang

Ronald Robert Fox

Jeremy Thomas Harbaugh

Joseph Stephen Beri

Samuel Ernest Magargi, Iii

This disclosure relates to detecting fluid in medical tubing. In certain aspects, a method is performed by a data processing apparatus. The method includes controlling repetitive activation of the ultrasonic transmitter. The method also includes receiving a signal from the ultrasonic receiver during an activation of the ultrasonic transmitter. The method also includes determining that fluid is absent or present in a portion of the medical fluid tube based on a comparison between the signal and a threshold value.

Dialysis medical system with a portable control unit

This disclosure relates to medical tubing installation detection. In certain aspects, a method is performed by a data processing apparatus. The method includes detecting that a tube is incorrectly installed on a drug delivery device by providing an instruction for a motor of the drug delivery device to pump a drug and receiving, after a period of time has passed since providing the instruction for the motor of the drug delivery device to pump the drug, a signal from a fluid detector connected to the tube, the signal indicating an absence of fluid in the tube.

Medical tubing installation detection

Controlling an ultrasonic transmitter

Determining the absence or presence of fluid in a dialysis system

Growing community of inventors

Ellwood City, PA, United States of America

Regis Joseph Winniewicz, Jr