Patent ID: 6018832
Filing Date: 2000-02-01
Classification: A47C,A61G,Y10S

Abstract:
A composite cushion comprisinga) a wraparound orthotic base comprisinga body member having a top surface, a bottom surface, front, back and side edges, the body member having sufficient strength to support a user and sufficient flexibility to conform to the contour of the hips and buttocks of the user to give a larger contact area, lower suspension forces and pressures, and improved pelvic stability and balance,an array of pillars depending from the bottom surface adapted to engage a surface such as a wheelchair seat to support the body member,b) an air pad positioned on the top surface of the base adjacent to the back edge, the air pad comprising a base and upstanding air cells positioned on the pad base, the air cells being flexible,c) a top foam pad shaped to rest on and being sufficiently flexible to conform to the top surface of the body member and having a cutout area at the rear to accommodate the air pad cells whereby the air cells are exposed through the foam pad, the foam pad and the air cells defining a comfortable user supporting surface,d) a cover enclosing the body member, the air cell pad, and the top foam pad,the cover having a low friction top positioned to facilitate movement of the user on and off of the cushion, anda non-skid bottom portion to assist in retaining the cushion on the surface on which it is positioned.