Biaxial extensometer for measuring of the human skin anisotropy in vivo

Knowing biomechanical properties of human skin is important for clinical decision making as well as clinical intervention. Measuring these properties in vivo is essential. However, existing devices don't respect the fact, that human skin is an anisotropic material. Nowadays devices investigate mostly the human skin anisotropy by uniaxial testing. This leads leads to distorted information. In this paper we proposed a new biaxial device for testing the human skin in vivo. This device can be used to obtain the true anisotropy of human skin.