Patent ID: 8590079
Filing Date: 2013-11-26
Classification: A61G

Abstract:
1. A cushion for supporting a patient comprising: a plurality of pneumatic elements; each pneumatic element of the plurality of pneumatic elements comprising a matrix which is adapted to be filled with a pressure medium and has a plurality of holes with sealingly welded contours; a plurality of spring elements, wherein each spring element of the plurality of spring elements is inserted into a hole of the plurality of holes; a controller that regulates an amplitude and a frequency of the pressure medium within the plurality of pneumatic elements for periodically distributing a resting weight of the patient from the plurality of pneumatic elements onto the plurality of spring elements and from the plurality of spring elements onto the plurality of pneumatic elements, thereby changing a loading area on a tissue of the patient; wherein at least two substantially congruent matrices are superposed such that on filling of the plurality of pneumatic elements with the pressure medium, the resting weight of the patient is supported by the plurality of pneumatic elements and the plurality of spring elements more at points where the patient stresses the plurality of pneumatic elements; and wherein, during a charge or discharge of the plurality of pneumatic elements, the plurality of pneumatic elements move relative to the plurality of spring elements.