Tuesday  |  Virtual Track 4  |  09:48 AM–10:00 AM

#11749, Evaluating Pulse Simulator Using Fluorescent DIC

The digital image correlation method (DIC) is used for determining the object deformation or movement by tracking random patterns among images. The random marks either generated artificially or native posed are the must for performing the DIC method. While utilizing the DIC for various applications, the contact force is inevitably generated while rendering artificial random marks on the object surface. Thanks to some adequate methods, such as spraying, the force introduced while generating patterns are considered tiny and ignorable and always regarded as non-contact measurement methods. Nowadays, the DIC has widely used for different objects, such as determining the mechanical behaviors for common mechanical materials, constructing materials, soft materials, biomaterials, and others. One of the DIC practical applications is to determine the mechanical properties of biomaterials.
During the last two decades, a huge amount of research on applying DICs to bio-materials has been reported. Such as determining the mechanical properties of cells using fluorescent particles, determining the mechanical properties of muscle and bone, and detecting the ventricular volume change before and after surgery.
While applying DIC to in vivo applications, the compound used for generating random marks must be biological toxicity-free and the system must be adequately evaluated before either animal tests or clinical trials.
Thus, to assess the imaging system design of a DIC system for the possible surgery applications; a simple simulator to simulate the mechanical interaction between the vessel and the tissue above to mimic the artery as blood flows through by is essential. Therefore, this study focuses on evaluating the DIC measurement of an artery simulator with the random surface pattern generated by fluorescent medicine before finalizing the system design.
In this study, FTIC, a fluorescent chemical component used for cell and animal tests that possess biological toxicity-free characteristics, is used to understand how to apply fluorescent medicine and the DIC method. A home-made LED light source and a filter with the exciting and emission bandwidths of FTIC are furnished together with a stereo-DIC imaging system are implemented and integrated into the DIC system. The displacement and strain fields determined using fluorescent medication and traditional inks will be compared. The detailed results and discussions will be presented at the conference.

Chi-Hung Hwang   Taiwan Instrument Research Institute/NARLabs
Rui-Cian Weng   Taiwan Instrument Research Institute/NARLabs
Yen-Pei Lu   Taiwan Instrument Research Institute/NARLabs
Wei-Chung Wang   National Tsing Hua University
Tzu-Yu Kuo   National Tsing Hua University
Chun-Wei Lai   National Tsing Hua University