Fresenius Medical Care Holdings, Inc.

Awe Technologies LLC

Gareth T Schaefer

Martin Joseph Crnkovich

Dipen N Sinha

Peter G Espina

Robert Schaefer

Scott Macintosh

In one aspect, a method and system for detecting a change in fluid dynamics of a fluid flowing through an extra-corporeal circuit is disclosed, which includes establishing an acoustic wave resonance across a transverse dimension of at least a portion of a line associated with the extra-corporeal circuit through which the fluid flows, monitoring a phase signal of the resonant acoustic wave, and identifying occurrence of a change in fluid dynamics of the flowing fluid when the observed phase signal of the resonant acoustic wave indicates a deviation from the expected fluid flow signature. The change in fluid dynamics can be used to indicate a venous needle dislodgement event.

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Bay Shore, NY, United States of America

Gareth T Schaefer