Stent having lumen comprising welded engagement points and method of fabricating same
First Claim
1. A stent having a longitudinal lumen comprising a first long side and a second long side, said first long side provided with a plurality of pairs of engagement points, said second long side provided with a plurality of pairs of engagement points, said plurality of pairs of first long side engagement points and said plurality of pairs of second long side engagement points disposed substantially opposite each other and connected to each other via a weld, said weld wider than the other portions of said stent the area of weld material being disposed below the v-shaped notch.
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Accused Products
Abstract
A stent and a method for fabricating the stent are disclosed. The stent has an originally flat pattern and connection points where the sides of the flat pattern are joined. The method includes the steps of a) cutting a stent pattern into a flat piece of metal thereby to produce a metal pattern, b) deforming the metal pattern so as to cause two opposing sides to meet, and c) joining the two opposing sides at least at one point. Substantially no portion of the stent projects into the lumen of the stent when the stent is expanded against the internal wall of a blood vessel.
89 Citations
7 Claims
- 1. A stent having a longitudinal lumen comprising a first long side and a second long side, said first long side provided with a plurality of pairs of engagement points, said second long side provided with a plurality of pairs of engagement points, said plurality of pairs of first long side engagement points and said plurality of pairs of second long side engagement points disposed substantially opposite each other and connected to each other via a weld, said weld wider than the other portions of said stent the area of weld material being disposed below the v-shaped notch.
- 3. A flat sheet having a stent pattern provided thereon, said flat sheet having a first long side and a second long side, said first long side being provided with a plurality of pairs of engagement points, said second long side being provided with a plurality of pairs of engagement points, said flat sheet further being configured such that, when said pattern is deformed into a tubular shape, said plurality of pairs of first long side engagement points and said plurality of pair of second long side engagement points are disposed substantially opposite each other and a v-shaped notch is formed between the first long side and the second long side between respective pairs of engagement points, said v-shaped notch being adapted to receive weld material therein during a welding of respective pairs of engagement points to one another.
Specification