Tubing for use with catheters; catheters and parts and fittings therefor; drug-eluting stents for thrombosis; medical guidewires and parts and fittings therefor; balloon catheters; biocompatible coated stents; medical devices for placing and securing catheters; medical instruments for intraluminal emplacement of stents or of synthetic stent grafts, namely, stent or synthetic stent graft delivery systems; medical imaging devices for brain; medical apparatus and instruments for treating intravascular disease; medical apparatus and instruments, namely, surgical apparatus and instruments for medical use; medical apparatus and instruments, namely, vascular and neurovascular embolization devices; medical apparatus and instruments, namely, device, vascular, for promoting embolization; drug-coated stents for thrombosis; stents