STENT AND METHOD OF FORMING A STENT WITH INTEGRAL BARBS
A method for manufacturing a barbed stent includes providing a sheet of stent material, cutting the sheet to form a stent wire with integral barbs extending therefrom, and forming the stent wire into a final stent shape having a longitudinal axis. A stent for deployment within the body of a patient includes integral barbs.
1 . A method of manufacturing a barbed stent, comprising:
providing a stent material;
cutting the stent material to form a stent segment with at least one integral barb extending therefrom;
orienting the at least one integral barb in a first direction; and
bending the stent segment in a second direction, transverse to the first direction, to form at least one bend connected to two struts.
2 . The method of claim 1 , where the stent material comprises a sheet.
3 . The method of claim 1 , where the stent material comprises a cannula.
4 . The method of claim 1 , where the stent material comprises a wire.
5 . The method of claim 1 , further comprising polishing the stent segment.
6 . The method of claim 5 , further comprising electropolishing the stent segment.
7 . The method of claim 1 , wherein the cutting is performed with a laser.
8 . A method of manufacturing a barbed stent, comprising:
providing a stent segment having at least one barb;
bending the stent segment to form at least one bend connected to two struts, the stent segment comprising a longitudinal axis; and
prior to the bending, orienting the at least one barb so as to point in a direction transverse to the longitudinal axis of the stent segment after bending.
9 . The method of claim 8 , wherein bending comprises bending the stent segment into a zigzag shape.
10 . The method of claim 9 , wherein bending comprises bending the stent segment into a zigzag shape having alternating struts and bends, so that at least one of the barbs is integral with at least every other strut.
11 . The method of claim 9 , wherein bending comprises bending the stent segment into a zigzag shape having alternating struts and bends, so that at least one of the barbs is integral with at least every other strut.
12 . A method of manufacturing a barbed stent, comprising:
providing a wire having at least one barb;
bending the wire to form a stent segment comprising at least one bend connected to two struts, the stent segment comprising a longitudinal axis; and
prior to the bending, orienting the at least one barb so as to point in a direction transverse to the longitudinal axis of the stent segment after bending.
13 . The method of claim 12 , wherein bending comprises bending the stent segment into a zigzag shape.
14 . The method of claim 13 , wherein bending comprises bending the stent segment into a zigzag shape having alternating struts and bends, so that at least one of the barbs is integral with at least every other strut.
15 . The method of claim 13 , wherein bending comprises bending the stent segment into a zigzag shape having alternating struts and bends, so that at least one of the barbs is integral with at least every other strut.