A compact container holder that comprises a housing, a door, and at least one arm is provided. The simplified hinge has a pintle connected to the base, a main linking sheet connected to the cover and a resilient washer and a positioning washer abutting each other and mounted around the pintle. The first computer system has health care data stored therein. The protruding pillar is formed on the other one of the brake pedal and the brake base for pushing the elastic portion and for engaging with the lock slot or the release slot. Dimensions of the mask pattern are changed in accordance with an amount of process variation occurring in the thickness or dielectric constant of the insulating film during the formation of the insulating film. The wheel carrier is designed in at least three parts with a first wheel carrier part, a second wheel carrier part and a third wheel carrier part, which wheel carrier parts can be connected to one another by means of connecting elements in such a way that the at least three wheel carrier parts are moveable relative to one another.