PREPARATION METHOD FOR ULTRA-SMOOTH POROUS SURFACE FOR LUBRICATING OIL INFUSION OF MEDICAL CATHETER

WIPO Patent Application WO/2022/127631

A1

The present invention provides a preparation method for an ultra-smooth porous surface for lubricating oil infusion of a medical catheter. The method comprises: obtaining a precursor solution containing a large number of immiscible droplets on the basis of a rapid stirring method; and then, introducing the solution into a tube mold, curing, and washing off the unpolymerized portion to obtain a catheter having a porous structure, and then infiltrating the porous structure and the surface thereof with lubricating oil to obtain an ultra-smooth porous surface for lubricating oil infusion of a medical catheter. According to the present invention, the prepared catheter surface is covered with chemically inert lubricating oil, and thus has certain self-repairing performance, and can effectively avoid adhesion of biological components such as bacteria and proteins for a long time. The preparation method of the present invention is simple and rapid, high in stability, and long in service life; moreover, the prepared functional surface is suitable for medical catheters and surgical instruments, etc., and has important significance for broadening the biomedical value of wettable materials.

ZHAO YUANJIN (CN)
SUN LINGYU (CN)
WANG YUETONG (CN)
SHANG LUORAN (CN)
ZHANG DAGAN (CN)

PCT/CN2021/135647

June 23, 2022

December 06, 2021

Click for automatic bibliography generation  

NANJING DRUM TOWER HOSPITAL (CN)

A61L29/08; A61L29/14

WO2012100100A2

2012-07-26

CN112472877A	2021-03-12
US20160032074A1	2016-02-04
CN110818946A	2020-02-21
CN107759818A	2018-03-06
CN111825984A	2020-10-27
CN103703085A	2014-04-02

NANJING ZHONGSHAN PATENT AGENT CO., LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: OPTICAL ZOOM CAMERA MODULE AND CORRESPONDING PORTABLE TERMINAL DEVICE

Next Patent: RESOURCE MANAGEMENT AND CONTROL METHOD, AND DEVICE