US 12,115,088 B2
Stent and method for manufacturing same
Jae Hee Lee, Seoul (KR); Mong Do Heo, Cheonan-si (KR); and Sang-Chul Kim, Cheonan-si (KR)
Assigned to SEWOON MEDICAL CO., LTD., Cheonan-si (KR)
Filed by SEWOON MEDICAL CO., LTD., Cheonan-si (KR)
Filed on Jul. 13, 2021, as Appl. No. 17/373,786.
Application 17/373,786 is a continuation of application No. PCT/KR2019/003986, filed on Apr. 4, 2019.
Claims priority of application No. 10-2019-0010708 (KR), filed on Jan. 28, 2019.
Prior Publication US 2021/0361452 A1, Nov. 25, 2021
Int. Cl. A61F 2/90 (2013.01); A61F 2/07 (2013.01); A61F 2/86 (2013.01); A61F 2/915 (2013.01)
CPC A61F 2/915 (2013.01) [A61F 2/07 (2013.01); A61F 2/86 (2013.01); A61F 2/90 (2013.01); A61F 2002/91541 (2013.01); A61F 2002/91575 (2013.01); A61F 2220/0016 (2013.01); A61F 2240/001 (2013.01); A61F 2250/0039 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A stent, inserted into a lesion portion of a stenosed lumen for smooth flow of blood comprising a cylindrical structure forming a mesh structure of a plurality of diamond shaped cells,
wherein the mesh structure comprises A-type diamond patterns, longitudinally adjacent to B-type diamond patterns,
wherein each diamond shaped cell of the A-type diamond patterns has a first width, in a circumferential direction of the cylindrical structure, and the each diamond shaped cell of B-type diamond patterns has a second width, in the circumferential direction of the cylindrical structure, wherein the first width and the second width are equal,
wherein each diamond shaped cell of the A-type diamond patterns has a first length, in a longitudinal direction of the cylindrical structure, and each diamond shaped cell of the B-type diamond patterns has a second length, in the longitudinal direction of the cylindrical structure, wherein the second length is larger than the first length to reduce a shortening phenomenon of the stent,
wherein each diamond shaped cell of the A-type diamond patterns has a first intersection angle at each of a peak and a valley in the longitudinal direction, and each diamond shaped cell of the B-type diamond patterns has a second intersection angle at each of a peak and a valley in the longitudinal direction, and
wherein the first intersection angle is 90 degrees, and the second intersection angle is 54 degrees.