Ursino M, Cristalli C
Department of Electronics and Automatics, University of Ancona, Italy.
J Biomech Eng. 1995 Feb;117(1):107-16. doi: 10.1115/1.2792258.
A mathematical model of the arm tissue mechanical behavior under the effect of external pressure loads is presented. The model has been used to study stress and strain distribution across the tissue, and pressure transmission to the brachial artery, when the arm is compressed by two adjacent cuffs independently inflated. Using this configuration, the tissue elastic parameters (Young modulus and Poisson ratio) can be individually identified using a simple and noninvasive experimental procedure. Model validation has been achieved by comparing its results with data obtained experimentally on 10 subjects. These comparisons demonstrate that the proposed model may constitute a simple but valid new tool able to describe tissue behavior, subjected to external pressures, with sufficient accuracy. Joined with a model of brachial hemodynamics, it might contribute to improve our understanding of noninvasive blood pressure estimation techniques.
提出了一种在外部压力负荷作用下手臂组织力学行为的数学模型。当手臂被两个独立充气的相邻袖带压迫时，该模型已被用于研究整个组织的应力和应变分布，以及压力向肱动脉的传递。使用这种配置，可以通过简单且无创的实验程序单独识别组织弹性参数（杨氏模量和泊松比）。通过将其结果与在10名受试者身上实验获得的数据进行比较，实现了模型验证。这些比较表明，所提出的模型可能构成一种简单但有效的新工具，能够以足够的精度描述受外部压力作用的组织行为。与肱动脉血流动力学模型相结合，它可能有助于提高我们对无创血压估计技术的理解。
