Patent ID: 7846195

Claim:
A method comprising: forming a first tapered stent spring comprising a first stent cell and a second stent cell contiguous with said first stent cell, wherein said second stent cell of said first tapered stent spring is coupled to said first stent cell of said first tapered stent spring, and further wherein said second stent cell is smaller than said first stent cell; forming a second tapered stent spring comprising a first stent cell and a second stent cell contiguous with said first stent cell, wherein said second stent cell of said second tapered stent spring is coupled to said first stent cell of said second tapered stent spring, and further wherein said second stent cell is smaller than said first stent cell; sewing said first tapered stent spring and said second tapered stent spring to a stent graft material, wherein said first tapered stent spring is spaced apart from said second tapered stent spring by a spacing distance.