Artificial-esophagus with peristaltic motion using shape memory alloy

被引:32
作者
Miki, Hiroyuki [1 ]
Okuyama, Takeshi [2 ]
Kodaira, Shingo [2 ]
Luo, Yun [3 ]
Takagi, Toshiyuki [1 ]
Yambe, Tomoyuki [4 ]
Sato, Takeshi [1 ]
机构
[1] Tohoku Univ, Inst Fluid Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Grad Sch Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Shanghai Jiao Tong Univ, Sch Mech & Power Engn, Inst Biomed Mfg & Life Qual Engn, Shanghai 200240, Peoples R China
[4] Tohoku Univ, Inst Dev Aging & Canc, Aoba Ku, Sendai, Miyagi 9808575, Japan
关键词
Artificial esophagus; peristaltic motion; shape memory alloy; actuator; SPHINCTER;
D O I
10.3233/JAE-2010-1176
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Artificial esophagus of less invasive medical applications utilizing mechanical property of shape memory alloys (SMAs) with peristaltic motion is developed. The artificial-esophagus is composed of two SMA springs, polyvinyl chloride tube, and acrylic plate. The dynamic characteristics of an artificial-esophagus actuator are evaluated in terms of the food transport capacity. Closing pressure and the transport speed have sufficiently realized with human-like qualities. The possibility for fully self-contained artificial-esophagus using SMAs is discussed.
引用
收藏
页码:705 / 711
页数:7
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