Stent designs and methods of manufacture
First Claim
1. A method for manufacturing a stent, the method comprising:
- forming a tubular structure having a first end and a second end, wherein the tubular structure defines a lumen extending from the first end to the second end and defines a central axis extending through the lumen in a longitudinal direction of the tubular structure, and wherein forming the tubular structure comprises;
braiding a plurality of first members with a plurality of second members to form a braided configuration having a plurality of crossover points;
bending at least one of the plurality of first members to form a first end bent portion connecting a first body portion arranged to extend in a first helical direction to a first end unjoined portion at the first end;
the first end unjoined portion arranged to extend in a second helical direction around the central axis, wherein the second helical direction is opposite of the first helical direction; and
disposing at least one of the plurality of second members such that the second member includes a first end overlap portion extending alongside the first end unjoined portion of a first member and such that a second body portion extends from the first end overlap portion in the second helical direction around the central axis and toward the second end, wherein the first end overlap portion of the second member and the first end unjoined portion of the first member both extend across at least one crossover point with another first or second member; and
coating at least a portion of the first end such that the coating encapsulates the first end unjoined portion of the at least one first member and the first end overlap portion of the at least one second member.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments disclosed include a woven stent and a method of manufacturing a woven stent that includes a plurality of first members and a plurality of second members forming a braided configuration; wherein each of the first members includes a first body portion, a first end unjoined portion, and a first end bent portion; wherein each of the second members includes a first end overlap portion extending alongside the first end unjoined portion. The woven stent may further includes a coating that encapsulates the first end unjoined portions and the first end overlap portions and/or the first end unjoined portions may be laser joined or ultrasonic joined to the first end overlap portions.
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Citations
11 Claims
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1. A method for manufacturing a stent, the method comprising:
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forming a tubular structure having a first end and a second end, wherein the tubular structure defines a lumen extending from the first end to the second end and defines a central axis extending through the lumen in a longitudinal direction of the tubular structure, and wherein forming the tubular structure comprises; braiding a plurality of first members with a plurality of second members to form a braided configuration having a plurality of crossover points; bending at least one of the plurality of first members to form a first end bent portion connecting a first body portion arranged to extend in a first helical direction to a first end unjoined portion at the first end;
the first end unjoined portion arranged to extend in a second helical direction around the central axis, wherein the second helical direction is opposite of the first helical direction; anddisposing at least one of the plurality of second members such that the second member includes a first end overlap portion extending alongside the first end unjoined portion of a first member and such that a second body portion extends from the first end overlap portion in the second helical direction around the central axis and toward the second end, wherein the first end overlap portion of the second member and the first end unjoined portion of the first member both extend across at least one crossover point with another first or second member; and coating at least a portion of the first end such that the coating encapsulates the first end unjoined portion of the at least one first member and the first end overlap portion of the at least one second member. - View Dependent Claims (2)
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3. A method for manufacturing a stent, the method comprising:
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forming a tubular structure having a first end and a second end, wherein the tubular structure defines a lumen extending from the first end to the second end, and wherein the tubular structure comprises a plurality of first members and a plurality of second members interwoven at a plurality of crossover points; contacting a first end unjoined portion of a first member with a first end overlap portion of a second member, wherein the first end overlap portion is parallel to the first end unjoined portion and wherein a line of contact is formed between the first end unjoined portion and the first end overlap portion; and joining the first end unjoined portion and the first end overlap portion, wherein joining comprises; directing laser or ultrasonic energy at the line of contact to heat the first end unjoined portion and the first end overlap portion at the line of contact to a joining temperature for a time sufficient to form a bond upon cooling; and allowing the line of contact to cool, thereby forming a bond between the first end unjoined portion and the first end overlap portion; wherein the bond extends across at least one crossover point with another first or second member. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
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Specification