Patent ID: 7305727
Filing Date: 2007-12-11
Classification: A47C,A61G

Abstract:
1. A bed for the decubitus prophylaxis comprising: a bedstead; a bed frame mounted on said bedstead, having a generally planar mattress support; having a longitudinal direction, having a transverse direction, and the bed frame being dimensionally rigid; at least three continuously height-adjustable lifting drives which are separate from each other, each lifting drive being connected between the bedstead and the bed frame with a universal joint, and the lifting drives providing the sole support for bed frame; and a drive unit connected with the lifting drives and operable to move the bed frame with a precessional frequency in the range of 6° to 36° per minute with a maximum amplitude in the range of 3 to 10 cm in the vertical direction; wherein at least one of the universal joints permits biaxial sliding between the bed frame and a corresponding lifting drive.