Low profile non-symmetrical stent

Abstract

A stent for use in a medical procedure having opposing sets of curved apices, where the curved section of one set of apices has a radius of curvature that is greater than the curved section of the other set of apices. One or more such stents may be attached to a graft material for use in endovascular treatment of, for example, aneurysm, thoracic dissection, or other body vessel condition.

1 - 84 . (canceled) 
     
     
         85 . A stent comprising:
 a plurality of proximal and distal apices connected by a plurality of generally straight portions,   where each proximal apex comprises a first curved portion and each distal apex comprises a second curved portion, where the first curved portion and the second curved portion each comprises at least one radius of curvature, and a first radius of curvature of at least one of the proximal apices is greater than a second radius of curvature of at least one of the distal apices;   where the first radius of curvature of one of the proximal apices is greater than 2.0 mm.   
     
     
         86 . The stent of  claim 85 , where the first radius of curvature of one of the proximal apices is from about 4 mm to about 9 mm. 
     
     
         87 . The stent of  claim 85 , where the second radius of curvature of one of the distal apices is from about 0.5 mm to about 1.5 mm, and
 where a ratio of the second radius of curvature to the first radius of curvature is about 1:2.6 to about 1:18.   
     
     
         88 . The stent of  claim 87 , where the second radius of curvature is about 1 mm, and the first radius of curvature is about 6 mm. 
     
     
         89 . The stent of  claim 85 , comprising a generally continuous plurality of proximal and distal apices, the outer surfaces of which define a cylinder having a generally consistent circumference. 
     
     
         90 . The stent of  claim 85 , where each of the proximal apices are circumferentially offset from the distal apices. 
     
     
         91 . The stent of  claim 85  comprising a generally continuous plurality of proximal and distal apices, the outer surfaces of which define a frustum of a cone. 
     
     
         92 . A stent comprising:
 a plurality of proximal and distal apices connected by a plurality of generally straight portions,   where each proximal apex comprises a first curved portion and each distal apex comprises a second curved portion, where the first curved portion and the second curved portion each comprises at least one radius of curvature, and a first radius of curvature of at least one of the proximal apices is greater than a second radius of curvature of at least one of the distal apices;   where the second radius of curvature of one of the distal apices is from 0.6 mm to 1.5 mm, and   where a ratio of the second radius of curvature to the first radius of curvature is about 1:2.6 to about 1:18.   
     
     
         93 . The stent of  claim 92 , where the first radius of curvature of one of the proximal apices is from about 4 mm to about 9 mm. 
     
     
         94 . The stent of  claim 93 , where the second radius of curvature is about 1 mm, and the first radius of curvature is about 6 mm. 
     
     
         95 . The stent of  claim 92 , further comprising a graft having proximal and distal ends, where at least one of the distal apices of the stent is attached to the graft. 
     
     
         96 . The stent of  claim 92 , comprising a generally continuous plurality of proximal and distal apices, the outer surfaces of which define a cylinder having a generally consistent circumference. 
     
     
         97 . The stent of  claim 92 , where each of the proximal apices are circumferentially offset from the distal apices. 
     
     
         98 . The stent of  claim 92  comprising a generally continuous plurality of proximal and distal apices, the outer surfaces of which define a frustum of a cone. 
     
     
         99 . A stent comprising:
 a plurality of proximal and distal apices connected by a plurality of generally straight portions,   where each proximal apex comprises a first curved portion and each distal apex comprises a second curved portion, where the first curved portion and the second curved portion each comprises at least one radius of curvature, and a first radius of curvature of at least one of the distal apices is greater than a second radius of curvature of at least one of the proximal apices;   where the second radius of curvature of one of the proximal apices is from 0.6 mm to 1.5 mm, and   where a ratio of the second radius of curvature to the first radius of curvature is about 1:2.6 to about 1:18.   
     
     
         100 . The stent of  claim 99 , where the first radius of curvature of one of the distal apices is from about 4 mm to about 9 mm. 
     
     
         101 . The stent of  claim 100 , where the second radius of curvature is about 1 mm, and the first radius of curvature is about 6 mm. 
     
     
         102 . The stent of  claim 99 , comprising a generally continuous plurality of proximal and distal apices, the outer surfaces of which define a cylinder having a generally consistent circumference. 
     
     
         103 . The stent of  claim 99 , where each of the proximal apices are circumferentially offset from the distal apices. 
     
     
         104 . The stent of  claim 99  comprising a generally continuous plurality of proximal and distal apices, the outer surfaces of which define a frustum of a cone.