摘要:
A portable liquid oxygen (PLOX) unit (30) and method of filling. The LOX unit includes a LOX container (32). An inlet line (40) communicates LOX from a LOX supply to an the LOX container, and an outlet line (54) communicates LOX from the LOX container ultimately for consumption by a user. A vent line (102) communicates the interior of the LOX container to ambient atmosphere. A vent valve is coupled to the vent line to selectively communicate the LOX container to the ambient atmosphere. An auto shutoff assembly (110) is associated with vent line to substantially block the vent line when the LOX in the LOX container reaches a predetermined level. A reset element associated with the auto shutoff assembly causes at least a portion of the auto shutoff assembly to unblock the vent line for subsequent filling.
摘要:
The present invention describes methods and systems to provide a liquid oxygen delivery system that efficiently delivers therapeutic oxygen in accordance with a patient's respiratory cycle. An exemplary embodiment of the present invention provides a portable liquid oxygen delivery system (200) having a liquid oxygen storage device (205), an oxygen conserving device (215), and an accumulator device (210). The portable liquid oxygen delivery system has a collective gaseous oxygen volume and the accumulator device is enabled to actuate and reduce the collective gaseous oxygen volume.