Abstract
Pressure Ulcers are defined as ischematic tissue necrosis caused by pressure on the body for long duration, but its developing mechanism is not clarified. To prevent pressure ulcers, many kinds of antidecubitus mattresses have been developed, but it is practically prevented by postural change by care assistant. In this study, to clarify the formation mechanism of pressure ulcers, the mechanical simulation using finite element method (FEM) analysis was performed. Capillary deformation around the sacral bone was calculated using multiscale modeling method of FEM analysis. From the result, development of the prediction method of pressure ulcers based on biomechanical simulation was discussed. This method will make it possible to predict and prevent formation and development of pressure ulcers.