Patent ID: 8359685
Filing Date: 2013-01-29
Classification: A61G

Abstract:
1. A wheelchair with a commode that converts into a bed comprising: a. an outer rectangular main frame standing on at least four wheeled legs, said frame supporting a hip portion of a patient's body; b. four outer frames being operatively connected to each other by pivots or hinges, out of these four frames, the first frame supporting the head portion of the patient's body, the second frame supporting the upper body portion of the patient's body, the third frame supporting the leg portion of the patient's body, the fourth frame supporting the foot portion of the legs of the patient's body, said main frame being disposed between the second and third frames, said first frame being operatively connected to rear legs of the main frame through a link and to said second frame by a hinge, said second frame being operatively connected to the third frame through another link, said third and fourth frames being connected to each other by a hinge, said fourth frame being provided with a caster wheel below it; c. a pair of additional wheels being operatively connected to said third frame by means of links, said links pulling the additional wheels either nearer to or farther away from the rear wheels of said main frame, said additional wheels preventing said wheelchair from tilting backward due to the weight of said first and second frames and the patient; d. means for making movements of said first, second, third and fourth frames to convert said wheelchair into a bed or vice-versa, said means being attached to the main frame from down side, said means comprising a gear box along with gears or cables; e. inner frames being slidably fitted inside the outer frames, said inner frames being pulled inside the outer frames during use of the wheelchair as a chair and pulled outside while using said wheelchair as a bed to increase the dimension of the bed; and f. a commode pan or pot being fitted under the main frame with a hinge and linkage arrangement, a cushion disposed between said main frame and said commode pan or pot, the position of said commode pan or pot and cushion being controlled by a pair of gear boxes in which one is provided near said commode pan or pot and the other is at the rear wheels of the outer main frame.