US Patent:
20140345386, Nov 27, 2014
Inventors:
- Waltham MA, US
Jeremy Thomas Harbaugh - Cranberry Twp PA, US
Michael John Zang - Allison Park PA, US
Regis Joseph Winniewicz - Ellwood City PA, US
Joseph Stephen Beri - Gibsonia PA, US
Douglas Mark Zatezalo - Allison Park PA, US
Tom Monahan - Wexford PA, US
Ronald Robert Fox - Glenshaw PA, US
International Classification:
G01N 29/44
G01N 29/04
A61M 1/34
Abstract:
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.