| 摘要 |
An occluder for supporting and preventing escape of anesthesia gases through face masks when not in use includes a C-shaped support base. The base consists of a flat base plate adapted to fit beneath a surgical mattress, a side plate located in a plane normal to that of the base plate which has a height equal to the thickness of a standard surgical mattress, and a top plate which is in a plane parallel to that of the base plate. A solid cylindrical support shaft is integral with and extends upwardly from the top plate. Preferably the cylindrical support shaft has a main body portion approximately 15 mm in diameter and a top portion of reduced diameter which is preferably 13 mm in diameter. The components of the occluder are preferably formed of a non-ferrous metal such as aluminum.
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