COMPUTER-AIDED VASCULAR EXPERIMENTATION - A NEW ELECTROMECHANICAL TEST SYSTEM

COMPUTER-AIDED VASCULAR EXPERIMENTATION - A NEW ELECTROMECHANICAL TEST SYSTEM
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DOI:
10.1007/bf02368162
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发表时间:
1993-01-01
影响因子:
3.8
通讯作者:
ANJANAPPA, M
ANJANAPPA, M
中科院分区:
工程技术2区
文献类型:
--
作者:
HUMPHREY, JD;KANG, T;ANJANAPPA, M

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我们提出了一种新的计算机控制的机电系统,用于对天然和人造血管的圆柱形部分同时进行延伸、膨胀和扭转实验。将样本浸入温度受控的含氧生理溶液中进行测试。使用非接触式视频方法测量样本中心区域内的变形。相关的轴向载荷、管腔压力和扭矩是用标准传感器测量的。数据在线收集和存储,并用于实验方案的反馈控制,实验方案是使用定制交互软件规定的。最后,我们提供从犬主动脉和颈总动脉获得的说明性数据。
We present a new computer-controlled, electromechanical system for performing simultaneous extension, inflation, and torsion experiments on cylindrical segments of natural and artificial blood vessels. Specimens are tested while immersed in a temperature-controlled, oxygenated, physiologic solution. Deformations are measured within a central region of the specimen using noncontacting video methods. The associated axial loads, luminal pressures, and torques are measured with standard transducers. Data are collected and stored on-line, and are used in the feedback control of experimental protocols, which are prescribed using custom interactive software. Finally, we present illustrative data obtained from canine aortas and common carotid arteries.