Device for detecting inner pressure conditions in flexible ducts

Vorrichtung zur erkennung der innendruckverhältnisse in flexiblen leitungen

Dispositif de detection de la pression interne regnant dans des conduits flexibles

Abstract

Un dispositif (1) de détection de la pression interne régnant dans des conduits flexibles (5) comprend une plaque fixe (6) et une plaque mobile (7) entre lesquelles le conduit (5) est précontraint. La pression interne est transmise par la plaque mobile (7), le cas échéant par un poussoir (8), à un capteur de pression (2). Ce dispositif (1) a une sensibillité élevée et permet de mesurer directement de l'extérieur la pression intérieure sans dispositifs accessoires.
A device (1) for detecting inner pressure conditions in flexible ducts (5) has a fixed plate (6) and a movable plate (7) between which the duct (5) is pre-stressed. The inner pressure conditions are transmitted by the movable plate (7), if necessary by a tappet (8), to a pressure sensor (2). This device (1) is highly sensitive and allows inner pressure conditions to be directly measured from outside without any accessory implements.
Die Erfindung betrifft eine Vorrichung (1) zur Erkennung der Innendruckverhältnisse in flexiblen Leitungen (5), die eine feste (6) und eine bewegliche Platte (7) aufweist, zwischen denen die Leitung (5) vorgespannt ist. Die Innendruckverhältnisse werden über die bewegliche Platte (7) und gegebenenfalls einen Stößel (8) auf einen Drucksensor (2) übertragen. Die erfindungsgemäße Vorrichtung (1) zeichnet sich durch hohe Empfindlichkeit aus und ermöglicht die direkte Messung der Innendruckverhältnisse von außen ohne Zusatzmittel.

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    GB-2514068-ANovember 12, 2014Baxter Healthcare Sa, Baxter IntPressure sensing assembly for an infusion pump
    US-5695473-ADecember 09, 1997Sims Deltec, Inc.Occlusion detection system for an infusion pump
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    WO-9603168-A1February 08, 1996Sims Deltec, Inc.Systeme de detection d'occlusion destine a une pompe a transfusion