Abstract
In order to promote the pulmonary circulation after Fontan operation, we developed a pediatric pulmonary circulatory assist device using shape memory alloy fibers. In this study, we developed the sensor-less control system for the pulmonary circulatory assist device and examined its fundamental functions. The SMA fiber showed a linear relationship between the internal resistance and longitudinal contraction. We measured the change in current of the fiber during the operation. Electric current increased from 1.4 to 1.8 A during operation, and the maximum current supply was measured at the end of the contraction. Therefore, we could be estimated the device contraction by the measurement of current which was calculated by voltage sampling of fiber units. Prevention of the overheating of the fiber unit was one of the problem throughout the operation of the device, and we could achieve the elimination of excess current supply by detecting the fiber voltage as well as the estimation of electric power supply without ineffective contraction. Consequently, the method in this study might be applied as a highly reliable totally implantable system.
| Original language | English |
|---|---|
| Pages (from-to) | O-539-O-540 |
| Journal | Transactions of Japanese Society for Medical and Biological Engineering |
| Volume | 52 |
| DOIs | |
| Publication status | Published - 2014 Aug 17 |
| Externally published | Yes |
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Keywords
- Fontan circulation
- Pediatric circulatory assist device
- Total cavopulmonary connection
ASJC Scopus subject areas
- Biomedical Engineering
Cite this
Development of sensorless control system for pediatric pulmonary circulatory assist device using shape memory alloy fibers. / Yamada, Akihiro; Shiraishi, Yasuyuki; Hashem, Mohamed Omran; Miura, Hidekazu; Tsuboko, Yusuke; Yambe, Tomoyuki; Homma, Dai; Yamagishi, Masaaki.
In: Transactions of Japanese Society for Medical and Biological Engineering, Vol. 52, 17.08.2014, p. O-539-O-540.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of sensorless control system for pediatric pulmonary circulatory assist device using shape memory alloy fibers
AU - Yamada, Akihiro
AU - Shiraishi, Yasuyuki
AU - Hashem, Mohamed Omran
AU - Miura, Hidekazu
AU - Tsuboko, Yusuke
AU - Yambe, Tomoyuki
AU - Homma, Dai
AU - Yamagishi, Masaaki
PY - 2014/8/17
Y1 - 2014/8/17
N2 - In order to promote the pulmonary circulation after Fontan operation, we developed a pediatric pulmonary circulatory assist device using shape memory alloy fibers. In this study, we developed the sensor-less control system for the pulmonary circulatory assist device and examined its fundamental functions. The SMA fiber showed a linear relationship between the internal resistance and longitudinal contraction. We measured the change in current of the fiber during the operation. Electric current increased from 1.4 to 1.8 A during operation, and the maximum current supply was measured at the end of the contraction. Therefore, we could be estimated the device contraction by the measurement of current which was calculated by voltage sampling of fiber units. Prevention of the overheating of the fiber unit was one of the problem throughout the operation of the device, and we could achieve the elimination of excess current supply by detecting the fiber voltage as well as the estimation of electric power supply without ineffective contraction. Consequently, the method in this study might be applied as a highly reliable totally implantable system.
AB - In order to promote the pulmonary circulation after Fontan operation, we developed a pediatric pulmonary circulatory assist device using shape memory alloy fibers. In this study, we developed the sensor-less control system for the pulmonary circulatory assist device and examined its fundamental functions. The SMA fiber showed a linear relationship between the internal resistance and longitudinal contraction. We measured the change in current of the fiber during the operation. Electric current increased from 1.4 to 1.8 A during operation, and the maximum current supply was measured at the end of the contraction. Therefore, we could be estimated the device contraction by the measurement of current which was calculated by voltage sampling of fiber units. Prevention of the overheating of the fiber unit was one of the problem throughout the operation of the device, and we could achieve the elimination of excess current supply by detecting the fiber voltage as well as the estimation of electric power supply without ineffective contraction. Consequently, the method in this study might be applied as a highly reliable totally implantable system.
KW - Fontan circulation
KW - Pediatric circulatory assist device
KW - Total cavopulmonary connection
UR - http://www.scopus.com/inward/record.url?scp=84939431615&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84939431615&partnerID=8YFLogxK
U2 - 10.11239/jsmbe.52.O-539
DO - 10.11239/jsmbe.52.O-539
M3 - Article
AN - SCOPUS:84939431615
VL - 52
SP - O-539-O-540
JO - BME = Bio medical engineering / henshu, Nihon ME Gakkai
JF - BME = Bio medical engineering / henshu, Nihon ME Gakkai
SN - 1347-443X
ER -