Patent ID: 7263814
Filing Date: 2007-09-04
Classification: A61F,A61H,A61M

Abstract:
1. A method of charging an apparatus, the apparatus including a top layer and a bottom layer sealed around the perimeter of the layers to form a reservoir between the layers, wherein the top layer has gas barrier properties and the bottom layer has gas transfer properties, the method, comprising: placing the apparatus within a substantially gas-impermeable container, wherein the reservoir of the apparatus is pre-filled with one or more first gases according to a first ratio; flushing the container with one or more second gases sufficient to produce a second ratio of gases within the container, wherein at least one of the second gases is at a concentration greater than atmospheric; and hermetically sealing the container and allowing the second and first gases to permeate into and out of the reservoir of the apparatus via the bottom layer such that the first and second gases in the apparatus and container reach equilibrium to produce a third ratio of gases, wherein at least one of the gases is at a concentration greater than atmospheric.