FORK-TYPE COVERED STENT - LIFETECH SCIENT SHENZHEN CO

Title:

FORK-TYPE COVERED STENT

Document Type and Number:

WIPO Patent Application WO/2015/196948

Kind Code:

A1

Abstract:

A fork-type covered stent (10) comprises a body (100) and a side branch (200) that forms an acute angle with the body (100). The side branch (200) comprises a covering film (220) and a first bare stent (240) only disposed on the covering film (220). Part of the first bare stent (240) is close to a boundary line (230) of the body (100) and the covering film (220) and is located in a vertex angle area (250) of the acute angle. Due to the fact that part of the first bear stent (240) is attached to the vertex angel area (250), the part, automatically expanded after the stent (10) is released, of the first bare stent (240) enables the vertex angel area (250) of the side branch (200) to be effectively supported, the covering film is not prone to shrinkage, and a leading wire can enter easily. Meanwhile, a special bare stent attached to the vertex angel area (250) does not need to be additionally disposed on the first bare stent (240), and thus the technology for preparing the bare stent is simplified; furthermore, the first bare stent (240) is only disposed on the side branch (200) and does not need to span the connecting part of the body (100) and the side branch (200), and thus the waveform can be shaped easily.

Inventors:

WANG YONGSHENG (CN)
LIU CAIPING (CN)
ZHANG DEYUAN (CN)
GUO WEI (CN)

Application Number:

PCT/CN2015/081893

Publication Date:

December 30, 2015

Filing Date:

June 19, 2015

Export Citation:

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Assignee:

LIFETECH SCIENT SHENZHEN CO (CN)

International Classes:

A61F2/06; A61F2/07

Foreign References:

CN203988497U	2014-12-10
CN104116577A	2014-10-29
US20120290068A1	2012-11-15
US20060287704A1	2006-12-21
US20060136046A1	2006-06-22
CN101259045A	2008-09-10
CN201046170Y	2008-04-16

Other References: