BILE DUCT STENT AND MANUFACTURING METHOD THEREOF

Title:

BILE DUCT STENT AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2021/210821

Kind Code:

A1

Abstract:

Disclosed are a bile duct stent and a manufacturing method thereof. A bile duct stent having a backflow prevention means according to an embodiment of the present invention comprises: a cylindrical body having a mesh structure manufactured by zigzag-weaving metal yarns of a shape memory alloy onto a plurality of pins respectively arranged in the circumferential direction (X) and longitudinal direction (Y) of a cylindrical jig; a film part coated on a metal yarn cell having the mesh structure; and a backflow prevention pattern film in which each of holes is formed in the film part of the cell formed at the outlet end of the cylindrical body, and a lasso, which passes through one of the holes (h) and is zigzag-woven and fixed to the metal yarn cell oriented in the circumferential direction, crosses the outlet end at least once to form a network structure.

Inventors:

SONG TAE JUN (KR)
LEE JAE HEE (KR)

Application Number:

PCT/KR2021/004125

Publication Date:

October 21, 2021

Filing Date:

April 02, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ASAN FOUND (KR)
UNIV ULSAN FOUND IND COOP (KR)
STANDARD SCI TECH INC (KR)
SEWOON MEDICAL CO LTD (KR)

International Classes:

A61F2/90; A61F2/00; A61F2/04; A61F2/856; A61L31/02; A61L31/14; B21F45/00

Foreign References:

KR20190014335A	2019-02-12
KR20140094144A	2014-07-30
KR20100094763A	2010-08-27
US20080223476A1	2008-09-18
KR20040021266A	2004-03-10
US20140379092A1	2014-12-25
KR0170220B1	1999-03-20

Other References: