Portable perfusion/oxygenation module having respiratory gas...

C - Chemistry – Metallurgy – 12 – M

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C12M 3/00 (2006.01) A01N 1/02 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2228422

A portable perfusion/oxygenation module (10) includes respiratory gas driven dual positive displacement pumps (22, 24) coupled to a stacked membrane oxygenator unit (16) for perfusion fluid oxygenation, a valving manifold (26) to control perfusate flow direction coupled to an organ chamber (18) designed to enable easy installation of organ and maintenance of intra and extra organ fluid pressure. The perfusion/oxygenation apparatus requires no electrical power, is compact with the total weight being less than 50 pounds. With low weight and low flow rate of gas required to pump the perfusate, the oxygen supply is capable of sustaining pumping operation for 24 hours without gas cylinder change. No movable membranes, diaphragms or electrical power are required to deliver oxygenated perfusate.

Module portable de perfusion/oxygénation (10) qui comporte deux pompes volumétriques (22, 24) entraînées par gaz respiratoire, couplées à une unité (16) oxygénateur à empilement de membranes pour l'oxygénation du fluide de perfusion, un collecteur (26) à fonction de soupape pour commander le sens d'écoulement du fluide de perfusion couplé à une chambre (18) à organe conçue pour permettre l'installation facile d'un organe et le maintien de la pression de fluide à l'intérieur et à l'extérieur dudit organe. Ledit appareil de perfusion/oxygénation n'exige pas de puissance électrique et est compact, son poids total ne dépassant pas 50 livres. En raison du poids faible et du faible débit de gaz requis pour pomper le fluide de perfusion, l'alimentation en oxygène est capable d'assurer l'opération de pompage pendant 24 heures sans changement de la bouteille de gaz. Des membranes mobiles, des diaphragmes ou de la puissance électrique ne sont pas nécessaires pour produire le fluide de perfusion oxygéné.

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