Air bladder device having pattern changing mechanism

1. Field of the Invention An air bladder device includes a casing having a transparent or semi-transparent wall, an air bag received in the casing, and one or more patterns disposed between the wall and the air bag. The air bag is inflatable to move the patterns toward and away from the wall. The patterns are preferably spatial patterns and are deformable, and may be deformed when the patterns are forced against the wall, such that the patterns may be seen through the wall as changing patterns. The casing may include a scale for indicating the inflation of the air bag by the deformed patterns.