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Development of 3-dimension controllable catheter to show the immediate response using both the thermoelectric module and the shape memory alloy (SMA)

Authors
Kim, Cheol-WoongOh, Dong-JoonLee, Sang-HeonWang, Joon-HoKang, Ki-Weon
Issue Date
10-May-2008
Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
Citation
MODERN PHYSICS LETTERS B, v.22, no.11, pp.1099 - 1104
Indexed
SCIE
SCOPUS
Journal Title
MODERN PHYSICS LETTERS B
Volume
22
Number
11
Start Page
1099
End Page
1104
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/123547
DOI
10.1142/S0217984908015905
ISSN
0217-9849
Abstract
Today, the highlighted actuators such a Shape Memory Alloy ( hereafter, it is called SMA), will change greatly the next medical device market since their energy integration, lightness and simple structure are superior to those of the conventional electromechanical actuator. Especially, the reason why the SMA actuator system becomes the most important technique for the medical device market of the next generation is that the minimally invasive technique can be applied to the in-vivo lesion due to the superior flexibility of SMA actuator system such a hand. In spite of this advantage, the current SMA actuator is not widespread. The reason is that the non-linear dynamic characteristics of the SMA original hysteresis have not yet been solved. Therefore, to evaluate the thermoelectric characteristics of our developed thermoelectric module for our first basic study, we investigated the temperature variation by stage 1) according to the current increase of the consecutive current and 2) according to the countercurrent of the discontinuous static current.
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