Keywords bioactive molecules;Nitinol;biocompatibility;in vitro;perimembranous ventricular septal defects;symmetry membranous ventricular septal defect occluder;arrhythmia;

• 生物活性分子;共价包被;镍钛金属;生物相容性;体外试验;膜周部室间隔缺损;对称性膜部室间隔缺损堵闭器;心律失常;