Stent graft

Abstract

The stent graft ( 10 ) comprises a cylinder comprising a graft material in the form of a film and a stent that supports the cylinder. Further, the stent graft ( 10 ) is inserted within a region from the ascending aorta to the sinus of valsalva, and the stent graft comprises cylindrical body section ( 11 ) arranged in the ascending aorta and the sinus of valsalva section ( 12 ) arranged in the sinus of valsalva and having an inner diameter larger than that of the body section ( 11 ).

1 - 4 . (canceled) 
     
     
         5 . A stent graft comprising a cylinder comprising a graft material in the form of a film, and a stent that supports the cylinder, characterized in that:
 an open window is formed in the cylinder,   roentgen markers are arranged inside an inner periphery of the open window, and   a site of the window is a bare stent.   
     
     
         6 . (canceled) 
     
     
         7 . The stent graft according to  claim 5 , wherein
 the open window is circular when the stent graft is extended, and the roentgen markers are arranged in four directions of the open window.   
     
     
         8 . The stent graft according to  claim 5 , wherein
 the roentgen markers are soldered to the stent.   
     
     
         9 . The stent graft according to  claim 5 , wherein
 the stent graft is inserted in aortic arch; and   the open window is formed so as to enclose the openings of left subclavian artery, left common carotid artery, and brachiocephalic artery branching from the aortic arch.