Abstract
We developed a valved hybrid fractal stent to treat the cerebral aneurysm what is one of a cerebrovascular disease. Stenting and coil embolization can be used together by the stent. The stent has a valve part to coil insertion hole. The valves have fractal structures. So, the blood flowing into cerebral aneurysm is prevented. We have designed a fractal pattern that takes into account the flexural rigidity of the stent on the loading into catheter and deployment during detention. On the basis of these designs is to create a 5-fold stent model and observed the behavior of their contraction and expansion.
