Title:
COVERED STENT
Document Type and Number:
WIPO Patent Application WO/2019/042202
Kind Code:
A1
Abstract:
A covered stent comprises a bare stent and coatings connected to the bare stent. The coatings comprise a first film and a second film in contact with the first film. The bare stent comprises multiple axially-distributed wavelike rings. Each wavelike ring comprises multiple peaks, multiple valleys, and multiple rod bodies connecting the peaks and the valleys that are adjacent. The second film covers at least one rod body and exposes the peaks and the valleys, and an angle between the extension direction of the second film at the position of the covered rod body and the axial direction of the covered stent is not greater than 75°.
Inventors:
XIAO BENHAO (CN)
WANG YIFEI (CN)
WANG YIFEI (CN)
Application Number:
PCT/CN2018/101759
Publication Date:
March 07, 2019
Filing Date:
August 22, 2018
Export Citation:
Assignee:
LIFETECH SCIENT SHENZHEN CO (CN)
International Classes:
A61F2/07; A61F2/90; A61F2/966
Foreign References:
| CN104434352B | 2016-08-17 | |||
| CN105662666A | 2016-06-15 | |||
| JP2005110779A | 2005-04-28 | |||
| CN106344210A | 2017-01-25 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF: