A refuse disposal system is formed integrally with a wheelchair. A foam pad is positioned on a rigid seat of a wheelchair; the foam pad and rigid seat are each provided with openings in registration with each other. An annular cartridge of compressed disposable tubing is positioned within an annular...http://www.google.sh/patents/US7080418?utm_source=gb-gplus-sharePatent US7080418 - Integral refuse disposal system
