The product can be used only once, The Transport Occluder Catheter is a special device for transporting the occlusion device that treat the congenital heart disease. It is composed by long sheath pipe, short sheath pipe, inner pipe and some kinds adaptors, etc.The Delivery System is a set of catheters and accessories to transfer and release the occlusion device to the right position. include a loader a cable and a delivery sheath.They were specially designed to facilitate the attachment, loading, delivery, deployment and release of YAC occluders.