Variable flow reshapable flow restrictor apparatus and...

A - Human Necessities – 61 – M

Patent

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A61M 5/00 (2006.01) A61M 29/00 (2006.01)

Patent

CA 2640403

A novel apparatus and associated methods for controlling the flow through a flow restrictor using a reshapable lumen. The lumen reshapes as a function of the pressure differential over the flow restrictor. Because flow rate is proportional by the fourth order of magnitude to the diameter of the lumen, small changes in the pressure differential allow for larger changes in the flow rate over conventional flow restrictor systems and provides for real time, fine-tuned adjustments to the flow rate.

L'invention concerne un appareil et des procédés associés qui permettent de réguler le débit au moyen d'un réducteur de débit au moyen d'une lumière reprofilable. Cette lumière est reprofilée en fonction de la différence de pression appliquée sur le réducteur de débit. Etant donné que le débit est proportionel au diamètre de la lumière selon une valeur du quatrième ordre de grandeur, des légers changements de différence de pression permettent de modifier le débit de façon plus substantielle que les systèmes classiques de réduction de débit et de réaliser des réglages du débit affinés en temps réel.

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