Valve apparatus for use with an iv set

Details Valve apparatus for use with an iv set Valve apparatus for use with an iv set

A - Human Necessities

61

M

A61M 39/22 (2006.01) A61M 5/168 (2006.01) A61M 39/24 (2006.01) A61M 39/28 (2006.01)

Patent

CA 2262437

A valve apparatus employs a spherical sealing element disposed in resiliently deformable tubing. The dimensions of the sealing element are selected such that the valve opens when subjected to a cracking pressure that is greater than the head pressure developed in an IV set and less than the pressure generated by a peristaltic pump. The valve additionally has an actuator element associated therewith that may be applied to the tubing about the sealing element to cause free flow without the need for continuous manipulation.

Ce système de soupape emploie un élément d'étanchéité sphérique installé dans un tube susceptible de déformation élastique. Les dimensions de cet élément d'étanchéité sont calculées de manière à ce que la soupape s'ouvre lorsqu'elle est soumise à une pression d'ouverture supérieure à la pression de refoulement développée dans une ensemble pour intraveineuse mais inférieure à la pression engendrée par une pompe péristaltique. Cette soupape comporte, de surcroît, un actionneur pouvant être installé sur le tube non loin de l'élément d'étanchéité afin de permettre un débit continu sans qu'il soit nécessaire de procéder à des manipulations en continu.

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