Method for manufacturing stent using shape memory alloy wire, stent manufactured thereby, and jig for manufacturing same

A stent using a shape memory alloy wire, in which interconnecting is performed by using the shape memory alloy wire and the stent has hooks and cells through direction changing of the wire and hook coupling between the wires, the stent comprising:

• dividing equator lines (A1, A3, A5, A7, A9, A11, and A13) by being spaced by a horizontal diagonal distance Ph of a cell forming a rhombic geometry in an X-axis direction from an arbitrary selected origin on the circumferential surface of the jig, and dividing equator lines (A2, A4, A6, A8, A10, A12, and A14) by being spaced by the horizontal diagonal distance (Ph) at locations apart by a length (Ph1) bisecting the equator line, thereby forming equator lines (A1 to A14);
• in a longitudinal direction of the jig, dividing dividing lines (B3, B5, B7, B9, B11, and B13) by being spaced by a length (Pv1) bisecting a dividing line (B1) as a reference in an Y-axis direction from the origin and a vertical diagonal distance (Pv) of a cell forming a rhombic geometry from the dividing line (B1), and dividing dividing lines (B2, B4, B6, B8, B10, B12, and B14) into a same number of the dividing lines (B1, B3, B5, B7, B9, B11, and B13) at locations apart by an offset pitch (Pv2) from the dividing line (B1), thereby forming dividing lines (B1 to B14);
• at an intersection connecting each of the equator lines and each of the dividing lines, bending or crossing the stent wire to be in a rhombic geometry, and continuously repeating a unit cell to form a first stent (10);
• and
• vertically spacing the unit cell downward by the offset pitch (Pv2) such that a second stent (20) same as the first stent is overlapped with the same, whereby two sides provided at equiangular positions the overlapped first and second stents (10 and 20) are spaced by the offset pitch (Pv2), and a geometrically wide overlapping space (30) is formed by overlapping.

A jig for manufacturing a stent using a shape memory alloy wire, the jig comprising:

• a body (102) formed in a vertically long cylindrical shape with a circumference forming a hollow part of a stent to be manufactured;
• and
• detachable pins (103) interconnecting the wire by being inserted at multiple split positions around the body in X and Y-axis directions,
• wherein the equator lines (A1, A3, A5, A7, A9, A11, and A13) are divided by being spaced by a horizontal diagonal distance (Ph) of a cell forming a rhombic geometry in the X-axis direction from an arbitrary selected origin on the circumferential surface of the body (102), and the equator lines (A2, A4, A6, A8, A10, A12, and A14) are divided by being spaced by the horizontal diagonal distance (Ph) at locations apart by a length (Ph1) bisecting the equator line, thereby forming the equator lines (A1 to A14),
• in a longitudinal direction of the jig, the dividing lines (B3, B5, B7, B9, B11, and B13) are divided by being spaced by a length (Pv1) bisecting the dividing line B1, which is the reference in the Y-axis direction from the origin, and a vertical diagonal distance (Pv) of a cell forming a rhombic geometry from the dividing line (B1), and the dividing lines (B2, B4, B6, B8, B10, B12, and B14) are divided into the same number of the dividing lines (B1, B3, B5, B7, B9, B11, and B13) at locations apart by an offset pitch (Pv2) from the dividing line (B1), thereby forming dividing lines (B1 to B14), and
• the pins (103) are inserted into intersections where the first to sixth pattern portions (1 to 6) and the first a to sixth a pattern portions (1a to 6a) are passed to form an interconnected pattern.