Steerable atrial septal occluder implantation device with flexible neck

摘要

An atrial septal occluder device for repairing an atrial septal defect in a human heart includes an elongated catheter for insertion into and moved along a blood vessel and into the heart of a patient. The catheter includes a head portion, a tail portion and a neck portion between the head and tail portions. The neck portion is about 1 cm in length and 2 to 4 mm in diameter. The device also includes an Amplatzer ASO removably fixed to the head of the device and a moveable neck portion for positioning the ASO with respect to the ASD and an activator for closing the ASO over the ASD from outside of the patient's body.