The present invention provides a fixation device comprising at least two inflatable and deflatable cushions of two different types. The cushion of the first type is deformable when inflated and not deformable when deflated, while the cushion of the second type is arranged to at least partially expand into the direction of a cushion of the first type upon inflation. The fixation device provides for an improved fit and will easily and perfectly adapt to the shape and size of almost every body part.
