311 カテーテル型ステント融着マニピュレータに関する開発(ライフサポートにおける工学技術,オーガナイズドセッション)

概要

論文の詳細を見る
Stent-grafling is a minimally invasive operation that can prevent aneurism rupturing, but imperfect fixation of the stent-graft can lead to endoleak and migration of stent-graft. In this research, we developed a catheter type stent adhesion manipulator which can be used to adhere a stent-graft to the artery This device delivers the integrated energy of heat, pressure and vibration to the biological tissue and the stent-graft. The integrated energy allows biological tissue to adhere with low damage. This device consists of a shape memory alloy (SMA) and a bolt clamped Langevin type transducer (BLT). Pressure and heat are generated by applying current to the SMA, and vibration is generated by the BLT. The pressure and the heat of the SMA and the vibration amplitude of the BLT were measured to evaluate the device. The pressure, temperature and amplitude of the vibration produced with the manipulator are 0.72MPa, 132℃ and 1.1μm, respectively. These results demonstrate sufficient performance of the manipulator to adhere tissue and stent-graft.
社団法人日本機械学会の論文
2008-09-12