抄録
Pressure ulcers are cellular necrosis due to congestion that is the stanching of the blood current in the blood capillary, shear force or moisture. This is because that the contact pressure applies to the same part of the body for a long time. Thus, in this study, we propose a new type of mat system not to occur pressure ulcers for handicapped people who use a wheelchair. This system uses a pneumatic mat. That is to say, the mat element has cloth actuator. Therefore, the stiffness of each actuator can be controlled by inner pressure, so the contact pressure contribution can be changed by pumps and valves. In this paper, we measured about key factors influencing pressure ulcers. In other words, we make a comparison of the pressure distribution and share force by using a mat. As the result, the effectiveness of proposed system is verified through some experimental results.
