Abstract: A safety system for a gas process or facility for measuring the concentration of a specified gas in an area or chamber and determining whether it is safe to allow access to such area or chamber. In particular, the safety system is adapted for use in a gas sterilization facility having one or more sterilization chambers, wherein the safety system measures the concentration of the sterilizing gas and unlocks the door of the sterilization chamber if the level of the sterilizing gas in the sterilization chamber is below a predetermined limit. The safety system further limits access to the sterilization chamber after a predetermined period of time if the door of the sterilization chamber is not opened due to the possible continued desorption of the sterilizing gas from the articles into the sterilization chamber.

Abstract: An orthotic knee brace is custom fit to the user's leg without requiring any separate casting steps. The brace includes a thigh cuff which is hinged to a calf cuff. Straps can provide support to at least a portion of the leg. A pad is removably disposed on the interior surface of both the thigh cuff and the calf cuff and contacts the user's leg. The pad is initially pliable when placed around the user's leg and conforms to the leg shape. After a predetermined time the pad cures to maintain the leg shape even after the brace is removed.