Method and system for upstream occlusion detection

Details Method and system for upstream occlusion detection Method and system for upstream occlusion detection

G - Physics

01

L

354/28, 128/82

G01L 13/00 (2006.01) A61M 5/168 (2006.01)

Patent

CA 2029267

The method and system for detecting occlusion in a fluid line upstream of a pump concerns a fluid pump with a pump cycle in which the upstream pressure of the fluid line is communicated to the downstream portion of the fluid line. A pressure sensor located downstream of the pump is capable of measuring a relatively large negative-going pressure in the fluid line. A signal is generated to indicate occlusion based upon detection of negative-going pressure.

Méthode et système de détection d'occlusion dans un conduit de fluide. Le système de détection est situé en amont d'une pompe dont un cycle permet de communiquer la pression en amont du conduit de fluide à la partie en aval du conduit. Un capteur de pression situé en avant de la pompe permet de déceler une pression importante de sens négatif dans le conduit et, le cas échéant, un signal est généré pour indiquer qu'il y a occlusion.

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