| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase the shelf-life, that is, to minimize gas leakage and concentration reduction of the contents of a syringe. <P>SOLUTION: A unit dose, gas-filled syringe 12 is provided which is filled with gas before use and packaged in a gas barrier material. The syringe is filled with a selected gas and sealed inside a container 10 made from a high gas barrier material. The container is also filled with the selected gas. The container material is selected to have a gas transmission rate sufficient to prevent the selected gas from diffusing out of the container into the atmosphere. The volume of gas in the container is set greater than the atmospheric pressure to prevent atmospheric contaminant gas from entering the container and syringe. <P>COPYRIGHT: (C)2008,JPO&INPIT |
