An Experimental Study on Biomechanical Properties of Hepatic Tissue Using a New Measuring Method

Article type: Research Article

Authors: Wang, B. C. | Wang, G. R. | Yan, D. H. | Liu, Y. P.

Affiliations: Bioengineering Center, Chongqing University, Chongqing 630044, P.R. of China

Abstract: Hepatic tissue is an important internal organ for life. In this paper, we combined the moire method (an optical method) and indentation technique to investigate biomechanical response of hepatic tissue. To examine this measuring technique, we first measured the biomechanical properties of the block of pig's hepatic tissue using this method. The experimental result indicated that the pig's hepatic tissue was obviously a viscoelastic material. We closely analyzed the change of curves for force relaxation, creep, and nonlinear defonnation of the block of pig's liver. Meanwhile, we also compared the changes in the biomechanical parameters of nonnal and cirrhosis hepatic tissue of humans.

Keywords: hepatic tissue, force-relaxation, creep, nondeformation, moire method, indentation, technique

DOI: 10.3233/BME-1992-2305

Journal: Bio-Medical Materials and Engineering, vol. 2, no. 3, pp. 133-138, 1992