Title:
OCCLUDER AND METHOD FOR SEWING OCCLUDER
Document Type and Number:
WIPO Patent Application WO/2018/121348
Kind Code:
A1
Abstract:
Provided is an occluder, comprising a first disk-shaped structure (10) with a grid, wherein the first disk-shaped structure (10) is woven from at least two groups of braided wires, the two groups of braided wires are crossed to form multiple rings of crossing points, a blocking membrane (20) is also arranged in the disk-shaped structure (10), an edge of the blocking membrane (20) is connected to the outermost ring of crossing points (100) of the multiple rings of crossing points through a sewing wire, and the number of crossing points in the outermost ring of crossing points (100) sewn with the blocking membrane (20) is smaller than the number of all the crossing points in the outermost ring of the crossing points (100), and a position of the blocking membrane (20) near the edge thereof is connected to a ring of crossing points within the outermost ring of crossing points (100) in the multiple rings of crossing points through the sewing wire. The occluder can reduce the possibility of the phenomenon where the edge of the blocking membrane (20) cannot abut against a disk face edge of the occluder, improving the occlusion effect of the occluder.
Inventors:
ZHANG JIE (CN)
CHEN XIANMIAO (CN)
DENG YUEYING (CN)
LI WENFENG (CN)
CHEN XIANMIAO (CN)
DENG YUEYING (CN)
LI WENFENG (CN)
Application Number:
PCT/CN2017/117195
Publication Date:
July 05, 2018
Filing Date:
December 19, 2017
Export Citation:
Assignee:
LIFETECH SCIENT SHENZHEN CO (CN)
International Classes:
A61B17/00
Foreign References:
| CN101933850A | 2011-01-05 | |||
| CN101283935A | 2008-10-15 | |||
| CN201082203Y | 2008-07-09 | |||
| US20160168770A1 | 2016-06-16 | |||
| US20060224183A1 | 2006-10-05 |
Other References:
See also references of EP 3563773A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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