Apparatus for a seat, more particularly a vehicle seat, for mobilizing at least one region of a spinal column of a seat occupant, method for sequentially driving an apparatus and seat, more particularly vehicle seat

1. A method for sequentially actuating an apparatus for a vehicle seat for mobilizing at least one region of a spinal column of a seat occupant sitting in the seat, comprising:

providing the apparatus with a plurality of expandable elements which are in each case filled, or able to be filled, with a medium, wherein the expandable elements are sequentially actuatable, wherein at least one of the expandable elements is rotatable about the direction of the longitudinal axis of a backrest of the vehicle seat,

wherein in a first method step a first expandable element is filled with the medium, and subsequently, in a second method step, a second expandable element is filled with the medium, and the medium is emptied from the first expandable element.

2. The method as claimed in claim 1 , wherein in a third method step a third expandable element is filled, and the medium is emptied from the second expandable element.

3. The method as claimed in claim 1 , wherein the apparatus has a number of expandable elements, and in a n-th method step a n-th expandable element is filled, and the medium is emptied from an n−1-th expandable element.

4. The method as claimed in claim 3 , whereinafter the filling of the n-th expandable element, the n−1-th expandable element is filled, and the medium is emptied from the n−1-th expandable element, and this sequence is subsequently continued until the first expandable element is filled again.

5. A vehicle seat having the apparatus wherein the apparatus is sequentially actuated by a method as claimed in claim 1 .