Title:
URETER STENT AND MANUFACTURE METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/155746
Kind Code:
A1
Abstract:
Disclosed are a ureter stent and a manufacture method therefor. The ureter stent has at least one layer of precoating formed on the surface thereof and at least one layer of hydrophilic lubricating coating formed on the precoating. The precoating and the hydrophilic lubricating coating are formed by means of photocuring, thermocuring, chemical reaction, physical absorption, crystallization or freezing. According to the described technical solution, a layer of stable and firm coating can be formed on the surface of the ureter stent with a complicated shape, thereby greatly reducing the friction of the ureter stent (the friction at the 30th time is small and is maintained within two times of the initial friction), and greatly improving the lubricating property.
Inventors:
LI YE (CN)
Application Number:
PCT/CN2019/117154
Publication Date:
August 06, 2020
Filing Date:
November 11, 2019
Export Citation:
Assignee:
JIANGSU BIOSURF BIOTECH CO LTD (CN)
International Classes:
A61L29/08
Foreign References:
| CN105983139A | 2016-10-05 | |||
| CN105983138A | 2016-10-05 | |||
| CN101959914A | 2011-01-26 | |||
| CN104927024A | 2015-09-23 | |||
| CN104558666A | 2015-04-29 | |||
| CN105985721A | 2016-10-05 | |||
| US20130053470A1 | 2013-02-28 | |||
| US6794425B1 | 2004-09-21 |
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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