Abstract
The pressure sore is a trouble by the mechanical loading. As for this, the stress concentration occurs to the skin surface, next, sphacelation is meant by the skin. For example, the external stress which people receive is eased by the skin. That is, the viscoelasticity effect of skin structure is important. However, there is a case where the pressure sore is not improved even if the stress is removed. For this case, defective fixation of the skin is more remarkable than the general person. As a result, we proposed the model of the mechanism where the skin received the shear stress and the pressure sore was generated. To verify this model experimenting, it examined it in pathology. First of all, to measure the viscoelastic property of the skin with in vivo, the measuring instrument using the rheometer was developed. Next, it made comparative study with the state of pathology of the pressure sore with this measuring instrument. As a result, it was able to be suggested that defective fixation of the skin decide the form of the pressure sore. In addition, it has understood though the state of the therapeutic approach and the prognosis can be evaluated. It reports on these results in this paper.
