Title:
IMPLANT-TYPE, COMPLETELY BIOABSORBABLE, VASCULAR POLYMER STENT
Document Type and Number:
WIPO Patent Application WO/2018/036434
Kind Code:
A1
Abstract:
Disclosed is an implant-type, completely bioabsorbable, vascular polymer stent comprising five or more annular corrugated support struts (1), and connecting struts (2) spaced apart and connected between the support struts (1). The support struts (1) are formed by corrugations resembling an "Ω" shape (3) and corrugations resembling an "m" shape (4) being alternately connected with each other, wherein the corrugations resembling an "Ω" shape (3) and the corrugations resembling an "m" shape (4) are respectively composed of two sets of upright "s" parts and inverted "s" parts connected together, and the connection between two adjacent support struts (1) is formed by means of the connecting struts (2) connecting the top of the corrugations resembling an "Ω" shape (3) and the bottom of the corrugations resembling an "m" shape (4). The stent balances radial supporting force, wall thickness and flexibility, has good passing-through performance, can also provide sufficient mechanical support at a lesion segment for a specified period of time for wound healing, and is be gradually absorbed by the body after the wound heals, with good endothelialisation, thereby effectively reducing the stent restenosis rate and the risk of late stent thrombosis.
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Inventors:
CHEN YONG (CN)
HU XIAOLU (CN)
GAO KANGRONG (CN)
SHEN FENG (CN)
HU XIAOLU (CN)
GAO KANGRONG (CN)
SHEN FENG (CN)
Application Number:
PCT/CN2017/098108
Publication Date:
March 01, 2018
Filing Date:
August 18, 2017
Export Citation:
Assignee:
SHENZHEN SALUBRIS BIOMEDICAL ENG CO LTD (CN)
International Classes:
A61F2/07; A61F2/89; A61F2/915
Foreign References:
| CN106236342A | 2016-12-21 | |||
| CN201431532Y | 2010-03-31 | |||
| CN204951247U | 2016-01-13 | |||
| CN200948183Y | 2007-09-19 | |||
| US20060265050A1 | 2006-11-23 | |||
| US20110257727A1 | 2011-10-20 |
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