<qa>  What is the goal of the trial?This study is a small scale pilot trial for Sirolimus Target Eluting Bioresorbable Vascular Scaffold Firesorb in Patients with Coronary Artery Disease for the first time. The goal is to access the preliminary safety and efficacy of Firesorb implantation in the human body, and to provide evidence for subsequent large-scale, multi-center, randomized controlled clinical trials. Then provide the basis for the formal application of the product in China. 