Biomedical Engineering Reference
In-Depth Information
Fig. 6.1 Primary body
regions prone to pressure sore
formation
mapping system or a rigid buttocks model, customarily used for judging mattresses
or cushions cannot provide detailed information on the tissue situation under
loading caused by other body supporting devices. In fact, such systems, due to
their functionality, only provide rudimentary pressure information at the skin level.
They cannot assess potential mechanical changes in deeper tissue layers or eval-
uate shear stress. Based on numerical studies, the skin level surface pressure does
not provide any information on the internal tissue loading status. Information on
