Systems and methods for delivering implantable occluder devices for treating atrial septal defects

A method for delivering an occluder to an atrial septum of a patient, the occluder configured to transition between a collapsed delivery state and an expanded deployed state, the method comprising:

• removably coupling a first engagement portion at a distal region of an inner shaft to a distal end of the occluder;
• removably coupling a second engagement portion at a distal region of an outer shaft to a proximal end of the occluder, the outer shaft slidably disposed over the inner shaft;
• moving the outer shaft proximally relative to the inner shaft to transition the occluder from the expanded deployed state towards the collapsed delivery state;
• advancing the occluder in the collapsed delivery state to the atrial septum via the outer and inner shafts such that a distal portion of the occluder is disposed within a first atrium and a proximal portion of the occluder is disposed within a second atrium;
• actuating a slidable actuator of a handle operatively coupled to the inner and outer shafts to move the outer shaft distally relative to the inner shaft to transition the occluder from the collapsed delivery state towards the expanded deployed state, such that the proximal and distal portions of the occluder sandwich the atrial septum in the expanded deployed state;
• actuating a first rotatable actuator of the handle to rotate the inner shaft relative to the outer shaft to decouple the first engagement portion of the inner shaft from the distal end of the occluder;
• and
• actuating a second rotatable actuator of the handle to rotate the outer shaft relative to the inner shaft to decouple the second engagement portion of the outer shaft from the proximal end of the occluder.