Atraumatic stent and method and apparatus for making the same
First Claim
Patent Images
1. A stent comprising:
- a mesh wall having a variable diameter and comprising filament crossings, each filament crossing having an angle, all filament crossing angles being within 5 degrees of one another.
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Abstract
A method of braiding a stent and associated braided stent. The method includes braiding a number of elongate filaments around a mandrel using tensioned braiding carriers without spooling the filaments to the tensioned braiding carriers to form a braided stent having atraumatic ends. The braided stent includes a plurality of filaments being inter-braided at a braiding angle formed at crossing filament locations. The braiding angle may be substantially constant for all of the filament crossing locations.
63 Citations
19 Claims
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1. A stent comprising:
a mesh wall having a variable diameter and comprising filament crossings, each filament crossing having an angle, all filament crossing angles being within 5 degrees of one another. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A stent comprising:
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a tubular wall having a variable diameter and comprising a plurality of filaments in a mesh pattern extending from a first stent end to a second stent end, the tubular wall including a first portion having a first diameter, a second portion having a second diameter, and a transition portion located between the first portion and the second portion, the mesh pattern comprising a plurality of intersections of the plurality of filaments, each intersection having an intersection angle, wherein all of the intersection angles in the first portion are 110°
±
3°
, all of the intersection angles in the second portion are 110°
±
3°
, and all of the intersection angles in the transition portion are 110°
±
3°
. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A braided stent comprising:
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a number of elongate filaments inter-braided to form a tubular wall, the filaments being inter-braided at a braiding angle formed at crossing filament locations; the tubular wall comprising a first portion having a first diameter, a second portion having a second diameter which is different from the first diameter and a transition portion positioned between the first portion and the second portion; wherein the braiding angles in the first portion, the braiding angles in the second portion, and the braiding angles in the transition portion are all within 5 degrees of one another. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification