A new self-expanding Nitinol Stent: The experimental Study and early clinical experience

金属支架置入术被广泛认为是治疗髂动脉狭窄和闭塞的安全有效的方法。支架治疗的技术成功率和远期疗效均高于PTA。支架的灵活性和顺应性要求很高，才能获得病变部位和存档的最优支架扩张。2000年，我在研究设计和补充改进的情况下制作了一款试用产品。我把细的均匀的镍镍管剪成收缩的形状，膨胀后我会记住它。2001年，我几乎确定了发展的方向性和设计，并在扩大试验产品-表面处理方法中改进了记忆法。2002年，我检查了这种支架的生物效应的安全性。而Delivery Sheeth则被开发出来。我在最后一个设计下申请了一项专利。我通过拉伸试验和具有我们开发的支架物理特性的弯曲试验证实了这是一种行为和稻草假名特征。此外，作为活体安全性检查，我在直犬的髂动脉上扣留了一个支架，并与现有的支架进行了对比实验。我在2002年9月的国际放射学大会(墨西哥)上宣布了这一消息。

Metallic stent placement has been widely accepted as safe and effective for the treatment of iliac arterial stenoses and occlusions. Stent treatment has a higher technical success and long-term results than PTA. High flexibility and conformability of the stent are required to get access to the lesion and archived optimal stent expansion.In 2000, I made a trial product under study of a design and added improvement. I cut thin uniform nitinol pipe in a shrank shape design and I memorize it after expansion. I polish a surface of metal afterwards.In 2001, directionality and a design of development were almost decided and improved memory method in expansion of a trial product, surface treatment method.In 2002, I examined safety of biologic effects of this stent. And delivery sheeth was developed. I applied for a patent under a last design.I confirmed that it was an act and a straw kana characteristic by a tension test, a bending test with a physical characteristic of the stent, which we developed generally.Furthermore, as a living body safety examination, I detained a stent in an iliac artery of a straight dog and did a comparison experiment of an existing stent.I announce it to Sep. 2002 in International Congress of Radiology 2002 (Mexico).