生物軟組織之機械性質測試

Mechanical Testing of Biological Soft Tissues

劉彥慶(Yen-Ching Liu) ； 趙偉志(Wei-Chih Chao) ； 胡晉嘉(Jin-Jia Hu)

《科儀新知》 182期 (2011/06) Pp. 31-41

https://doi.org/10.29662/IT.201106.0004

摘要

瞭解软組織的機械性質有助於我們瞭解它的生理及病埋下的功能。機械生物反應常與軟組織內之應力或應變場有闕，而在應力及應變場之分析中，軟組織的機械性質不可或缺。一般而言，因著軟組織一些共有的特性，其機械性質的測試有一定的挑戰性。本文介紹了兩個常用的機械性質測試裝置，其一用於測試平面軟組織，另一则用於管狀軟組織。我們也概述了相關的應力與應變分析。文中所述的方法不單可用於定量軟組織的機械性質，也可以用於定量其他軟性生醫材料，如水膠等之機械性質。

並列摘要

Knowledge of mechanical properties of a soft tissue is essential to understand its functions during health and disease. Stress or strain fields in a soft tissue, which may be correlated with mechano-biological responses, cannot be analyzed without knowing its mechanical properties. However, it is generally challenging to characterize mechanical properties of soft tissues due to their special characteristics. In this article, two commonly used mechanical testing systems were described: one is for planar tissues and the other for cylindrical tissues. The corresponding stress and strain analysis was also introduced. The methods can be applied to not only soft tissues but also soft biomaterials such as hydrogels.