Involuted spring stent and graft assembly and method of use
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United States of America Patent
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Jul 21, 1998
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N/A
app pub date -
Jul 13, 1995
filing date -
Jul 13, 1995
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Abstract
An apparatus and method for forming or shaping an intraluminal stent for low profile delivery into a body lumen. A nickel titanium intraluminal stent has a tubular member formed from a plurality of coils which are bent to form lobe-shaped members, like a cloverleaf, to reduce the profile of the tubular member and form an involuted spring stent. The involuted spring stent will transform to the implanted diameter of the tubular member when exposed to body heat. The involuted spring stent can be attached to a tubular graft, or coated with a polymeric material to form an involuted spring graft, both of which can be used to repair aortic aneurysms.
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