Implantable medical device and assembly

A false lumen closure assembly for closing a false lumen in a body vessel, including:

• an elongate carrier catheter having a proximal end, a distal end, an inner lumen configured to extend over a guidewire catheter, and a nose cone dilator at the proximal end of the elongate carrier catheter;
• a compressed false lumen occluder having a proximal end, a distal end and including a stent graft having at least one occlusive barrier across an end of the stent graft to occlude blood flow through an interior of the stent graft;
• and
• a retractable sheath disposed over the elongate carrier catheter and the compressed false lumen occluder;
• wherein the elongate carrier catheter extends beyond the proximal end of the false lumen occluder to beyond the distal end of the false lumen occluder, and passes the false lumen occluder exteriorly of the stent graft on one side of the stent graft, such that the stent graft is at least partially wrapped around the elongate carrier catheter.

A false lumen closure assembly for closing a false lumen in a body vessel, including:

• a compressed false lumen plug including a stent graft, the stent graft including at least one occlusive barrier across the stent graft to occlude blood flow through an interior of the stent graft;
• a carrier catheter carrying the false lumen plug, the carrier catheter extending from a proximal end proximal of the false lumen plug to a distal end distal of the false lumen plug, and passing the false lumen plug exteriorly of the stent graft;
• a retractable sheath;
• wherein the carrier catheter and compressed false lumen plug are disposed in a lumen of the retractable sheath.