Abstract
Bed sore is cellular necrosis due to congestion, shear force or moisture. Thus, in this study, we propose a new type of mat system not to occur bed sore for handicapped people who use a wheelchair. This system uses a pneumatic mat to prevent congestion that is stanched blood flow. That is to say, the device has cloth actuators which are constructed with sponge, a glue film and a cloth. Therefore, the stiffness of each actuator can be controlled by inner pressure, so the contact pressure contribution can be changed by making use of pumps and valves. In this paper, we measured pressure distribution, shear force and moisture by using the proposed system. As the result, the effectiveness of proposed system is verified through some experimental results.
