Patent ID: 6823549
Filing Date: 2004-11-30
Classification: A61G

Abstract:
An alternating pressure cushion, comprising:a back cushion section having first and second back air-bladder networks, each back air-bladder network having an air filling tube connected thereto; a seat cushion section, the seat cushion being flexibly joined to said back cushion section, the seat cushion section having first and second seat air-bladder networks, the first seat air-bladder network having first inflation means for inflating said first seat air-bladder network, the second seat air-bladder network having second inflation means for inflating said second seat air-bladder network; and a leg cushion section, the leg cushion section being flexibly joined to said seat cushion section, the leg cushion section having first and second leg air-bladder networks, the first leg air-bladder network having third inflation means for inflating said first leg air-bladder network, the second leg air-bladder network having fourth inflation means for inflating said second leg air-bladder network, the back, seat and leg cushion sections being pneumatically interconnected, and being separated by foldable seams, the back cushion section further comprising an air bladder adapted to provide lumbar support, said air bladder having an air filling tube connected to one of the air filling tubes of the air-bladder networks of the back cushion section.