Infusion pump

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/142 (2006.01) F04B 43/12 (2006.01) F04B 49/10 (2006.01)

Patent

CA 2716203

A highly safe liquid conveying pump in which, in mounting and removal of a liquid conveying tube from the pump, free flow of liquid is reliably prevented. The liquid conveying pump is provided with a slide clamp mechanism capable of closing or opening a liquid conveying tube (40) by means of a clamp member, a valve mechanism capable of stopping flow of liquid in the liquid conveying tube (40) by compressing the liquid conveying tube (40), and an interlocking mechanism for allowing the slide clamp mechanism and the valve mechanism to be operated in an interlocking manner only by operation of the handle (23). During a series of operation by the handle (23), both or either of valves (14A, 14B) of the slide clamp (30) always closes the liquid conveying tube (40) to totally prevent free flow of the liquid in the liquid conveying tube (40).

La présente invention concerne une pompe d'acheminement de liquide hautement sécurisée et conçue pour éviter, de manière fiable, tout écoulement libre de fluide lors du montage et du retrait d'un tube d'acheminement de liquide sur/depuis la pompe. La pompe d'acheminement de fluide est pourvue d'un mécanisme de serrage coulissant capable de fermer ou d'ouvrir un tube (40) d'acheminement de liquide au moyen d'un élément de serrage, un mécanisme de soupape capable d'interrompre l'écoulement de liquide dans le tube (40) d'acheminement de liquide par compression dudit tube (40), et un mécanisme de verrouilage pour permettre au mécansime de serrage coulissant et au mécanisme de soupape d'être actionnés de manière verrouillée uniquement par actionnement de la manette (23). Pendant une série d'actionnement de la manette (23), au moins l'une des soupapes (14A, 14B) du serrage coulissant (30) obture systématiquement le tube (40) d'acheminement de liquide de manière à empêcher totalement tout écoulement libre du liquide dans ledit tube (40).

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