Patent ID: 6168238
Filing Date: 2001-01-02
Classification: A61G,Y10S

Abstract:
A chair comprising: a seat; a calf support releasably and detachably mounted on the seat and extending in a forward direction from said seat, said calf support having at least four inflatable cushion members arranged one closely adjacent the next in an array, said cushion members of said array extending one after the other in the forward direction from said seat and the array being of a length in said forward direction to provide a support surface for at least one calf of a person sitting on said seat; and a control means for inflating and deflating said cushion members automatically and cyclically in a predetermined sequence in which each one of said cushion members is periodically deflated to thereby provide pressure relief to the calf of the person sitting on said seat while the other cushion members are in an inflated state the order of deflation of said cushion members in said predetermined sequence being such that a pressure wave travels in an upward direction along that the lower leg of the person sitting on said chair.