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http://dx.doi.org/10.3795/KSME-B.2014.38.9.739

Biocompatibility Evaluation of Bent-Type Left Ventricular Assist Device During Long-Term Animal Experiment and Emergent Situation  

Kang, Seong Min (Dept. of Fusion System Engineering, Kangwon Nat'l Univ.)
Her, Keun (Cardiovascular and Thoracic Surgery, Soonchunhyang University Hospital)
Choi, Seong Wok (Dept. of Fusion System Engineering, Kangwon Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.9, 2014 , pp. 739-745 More about this Journal
Abstract
Although medication is given to heart disease patients, conventional medication alone is not sufficient to treat heart disease. However, it has been reported that left ventricular assist device (LVAD) transplantation is an effective bridge to heart transplantation by assisting cardiac function. This study used long-term animal testing and emergency situations with a bovine model (Holstein) and canine model (Labrador-retriever) to evaluate the biocompatibility of LibraHeart-I (LH-1), which is a bent-tube type of LVAD that was developed in a previous study. In the long-term animal testing with the bovine model, the subjects survived for 49 days with no irregularities observed in their complete blood cell counts or the vital sign tests that were carried out during the test period. In short-term animal testing with the canine model, it was observed that blood did not remain inside the LH-I even without power support from an external drive source. In this study, the biocompatibility of the LH-I that was developed in a previous study was verified by the ejection performance during long-term animal testing and emergency situations.
Keywords
Left Ventricular Assist Device; Biocompatibility;
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