Patent ID: 9186476
Filing Date: 2015-11-17
Classification: A61M

Abstract:
1. A portable liquid oxygen delivery system comprising: a liquid oxygen storage device; a pneumatic oxygen conserving device; a supply line communicating the liquid oxygen storage device and the pneumatic oxygen conserving device; an accumulator device disposed on the supply line between the liquid oxygen storage device and the pneumatic oxygen conserving device such that the accumulator device receives gaseous oxygen from the liquid oxygen storage device and provides gaseous oxygen to the pneumatic oxygen conserving device, wherein 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, and wherein the reduction in the collective gaseous oxygen volume by the accumulator device maintains a predetermined minimum pressure in the supply line; and a biasing member configured to apply a biasing force to one or more surfaces in the portable liquid oxygen delivery system, wherein the biasing force acts to decrease the collective gaseous oxygen volume.