Self contained, cryogenic mixed gas single phase storage and del

Surgery – Respiratory method or device – Using liquified oxygen

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128DIG27, A62B 706

Patent

active

060892269

ABSTRACT:
A system and method for storage and delivery of a cryogenic mixed gas is disclosed, the storages apparatus including a compact and lightweight dewar for containing cryogenic temperature mixed gas at supercritical pressure. Different heat exchangers associated with the dewar provide for heat input to the dewar to maintain gas therein in a single phase and provide continued expulsion energy. A backpack receives the dewar and includes means for quick connect of the dewar with an end use outlet, intermediate heat exchangers in the backpack conditioning the mixed gas for end use. No electrical input for fluid circulation is required.

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