US Patent 9278043 Cuff for providing compression to a limb

A cuff for providing compression to a limb includes an outer wall joined to an inner wall to form a bladder, the bladder being provided with means to separate the walls to maintain a path for fluid flow into and out of the bladder characterized in that the separating means are a spacer provided on the interior of at least one wall, which separates the walls when the bladder is deflated.