Wheelchairs are divided into ordinary wheelchairs and special wheelchairs.
Special wheelchairs are derived from ordinary wheelchairs based on the patient's remaining limb function and purpose of use. Commonly used are standing wheelchairs, lying wheelchairs, unilateral wheelchairs, electric wheelchairs, athletic wheelchairs and so on.
Ordinary wheelchairs are generally by the frame, wheel (big wheels, small wheel), brake device, seat, backrest composition.
Users'main part to bear the pressure is the ischial tuberosity, thigh and popliteal fossa, scapular area. Therefore, in the choice of wheelchairs should pay attention to the appropriate size of these parts, to avoid skin wear, abrasions and bedsores.