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US 10,947,651 B2Granted
Atraumatic stent and method and apparatus for making the same
AssigneeBoston Scientific Scimed, Inc.
InventorsSteve Lilburn, Paul K. Norton, Michael E. Zupkofska, Louis Bedard, Glenn Harding
Life of this patent
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Abstract
A method of braiding a stent 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.
Claims20
A method of making a braided stent comprising:
- securing a plurality of filaments to a first end of a mandrel, the first end of the mandrel having a larger diameter than a body of the mandrel;
- and
- braiding the plurality of filaments along the first end and the body of the mandrel to form a stent with a flared region at a first end, the flared region having a larger diameter than a body of the stent, wherein a braid angle in the flared region of the stent is substantially the same as a braid angle in the body of the stent.
A method of making a stent comprising:
- securing an intermediate portion of a plurality of filaments to a first end of a mandrel, the mandrel having a second end and a body extending between the first and second ends, the first end having a larger diameter than the body;
- braiding opposing ends of each of the plurality of filaments with a substantially constant braid angle along an entirety of the mandrel, thereby forming a stent having a flared first end region with a diameter larger than a body of the stent and a substantially constant braid angle along an entire length of the stent.
A method of making a stent comprising:
- looping in an intermediate portion of each of a plurality of filaments around projections at a first end of a mandrel;
- braiding opposing ends of each of the plurality of filaments around a body of the mandrel to form a stent having a flared first end, a body, and a second end, wherein the flared first end has a larger diameter than the body, wherein a braid angle in the flared first end is substantially the same as a braid angle in the body and the second end;
- and
- forming loops at the second end of the stent.
1 more element
Dependencies are inferred from the claim text.