The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Jun. 15, 2022
The Asan Foundation, Seoul, KR;
University of Ulsan Foundation for Industry Cooperation, Ulsan, KR;
Standard Sci-tech Inc., Seoul, KR;
Sewoon Medical Co., Ltd., Cheonan-si, KR;
Tae Jun Song, Seoul, KR;
Jae Hee Lee, Seoul, KR;
THE ASAN FOUNDATION, Seoul, KR;
UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION, Ulsan, KR;
STANDARD SCI-TECH INC., Seoul, KR;
SEWOON MEDICAL CO., LTD., Cheonan-si, KR;
Abstract
A bile duct stent and a method of manufacturing the same are disclosed. The bile duct stent having a backflow preventing means according to an embodiment of the present invention includes: a cylindrical body having a mesh structure formed by zigzagging metal wires of a shape memory alloy on a plurality of pins each disposed in a circumferential direction X and a longitudinal direction Y of a cylindrical jig; a film portion coated on cells of the metal wires of the mesh structure; and a backflow-preventing pattern film in which a hole is formed in the film portion of each cell formed at an outlet end of the cylindrical body and threads (Lasso) fixed by zigzagging to the cells of the metal wires in the circumferential direction by passing through any one hole (h) cross the outlet end one time or more to form a network structure.