890.3900—Standup wheelchair.
               		
               	 	
               	 	
               	 	               	 	               	 	               	 	               	 	
               	 	
    
        
        (a) Identification.
         A standup wheelchair is a device with wheels that is intended for medical purposes to provide mobility to persons restricted to a sitting position. The device incorporates  an external manually controlled mechanical system that is intended to raise a paraplegic to an upright position by means of an elevating seat.
     
    
        
        (b) Classification.
         Class II (performance standards).