方法：通过右颈内静脉途径穿刺室间隔制备犬室间隔缺损模型，模拟临床经导管封堵过程，经鞘管送入新型室间隔缺损封堵器，闭合人工制备的室间隔缺损。
Methods : VSD was created by transcatheter puncture through jugular vein and closed by occluder via 7F delivery sheath under fluoroscopy in the catheterization laboratory .
鞘室