Method and apparatus for detecting occlusions in an...

A - Human Necessities – 61 – M

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A61M 5/168 (2006.01)

Patent

CA 2672887

An improved pump, reservoir (406) and reservoir piston (407) are provided for controlled delivery of fluids. A motor (403) is operably coupled to a drive member (432), such as a drive screw (404), which is adapted to advance a plunger slide (405) in response to operation' of the motor. The plunger slide is removably coupled to the piston (407). A system for automatically detecting an occlusion in a medication infusion pump is provided. The electrical current to an infusion pump is measured. Based on a series of measurements of one or more variables, the infusion pump detects whether there is an occlusion in the system.

L'invention concerne une pompe, un réservoir et un piston de réservoir améliorés permettant une administration régulée de liquides. Un moteur est couplé fonctionnel à un élément d'entraînement, tel qu'une vis de commande, conçu pour faire avancer un plongeur coulissant en réponse à la mise en marche du moteur. Le plongeur coulissant est couplé amovible au piston. L'invention concerne également un procédé, un système et un article de fabrication permettant de détecter automatiquement une occlusion dans une pompe à perfusion de médicament. Le courant électrique fourni à une pompe à perfusion est mesuré. Sur la base d'une série de mesures d'une ou plusieurs variables, la pompe à perfusion détecte la présence ou non d'une occlusion dans le système.

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