"system and method for detecting occlusion using flow sensor...

A - Human Necessities – 61 – M

Patent

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A61M 5/168 (2006.01)

Patent

CA 2711562

A method and system for detecting an inclusion within an infusion system. The method includes monitoring an output signal of a flowrate sensor as fluid flows through an infusion system. The output signal is then converted with a noise reduction filter to obtain a filtered output signal. The filtered output signal is compared to a threshold value and an alarm is activated if the filtered output signal falls below a desired threshold, thereby indicating an occlusion within the infusion system.

La présente invention concerne un procédé et un système permettant de détecter une occlusion à l'intérieur d'un système de perfusion. Le procédé comprend l'étape consistant à contrôler un signal de sortie d'un capteur de débit à mesure que le fluide s'écoule à travers un système de perfusion. Le signal de sortie est ensuite converti avec un filtre réducteur de bruit pour obtenir un signal de sortie filtré. Le signal de sortie filtré est comparé à une valeur seuil et une alarme est activée si le signal de sortie filtré passe en dessous d'un seuil souhaité, indiquant ainsi une occlusion à l'intérieur du système de perfusion.

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