US 12,004,979 B2
Method for manufacturing stent using shape memory alloy wire, stent manufactured thereby, and jig for manufacturing same
Kyong Min Shin, Gyeonggi-do (KR); Young Ill Hong, Gyeonggi-do (KR); and Se Ik Park, Seoul (KR)
Assigned to TAEWOONG MEDICAL CO., LTD, Gyeonggi-do (KR)
Filed by TAEWOONG MEDICAL CO., LTD., Gyeonggi-do (KR); and Kyong Min Shin, Gyeonggi-do (KR)
Filed on Jun. 25, 2020, as Appl. No. 16/912,349.
Application 16/912,349 is a division of application No. 16/077,633, granted, now 10,806,612, previously published as PCT/KR2017/001401, filed on Feb. 9, 2017.
Claims priority of application No. 10-2016-0017142 (KR), filed on Feb. 15, 2016.
Prior Publication US 2020/0323663 A1, Oct. 15, 2020
Int. Cl. A61F 2/90 (2013.01); B21F 1/00 (2006.01); B21F 45/00 (2006.01)
CPC A61F 2/90 (2013.01) [B21F 1/00 (2013.01); B21F 45/008 (2013.01); A61F 2210/0014 (2013.01); A61F 2220/0083 (2013.01); A61F 2240/00 (2013.01); A61F 2240/001 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A jig for manufacturing a stent using a shape memory alloy wire, the jig comprising:
a body formed in a vertically long cylindrical shape with a circumference forming a hollow part of a stent to be manufactured; and
detachable pins interconnecting the wire by being inserted at multiple split positions around the body in X and Y-axis directions,
wherein equator lines (A1, A3, A5, A7, A9, A11, and A13) of the jig 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, 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, 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 the dividing lines (B1 to B14), and on the jig
the pins on the jig are inserted into intersections where the first to sixth pattern portions and the first a to sixth a pattern portions are passed to form an interconnected pattern,
wherein the interconnected pattern formed on the jig comprises a) a plurality of first stent loops connected by first connecting portions and b) a plurality of second stent loops connected by second connecting portions, and
the first stent loops including the first connection portions overlap the second stent loops including the second connecting portions.