Title:
SUPER-LUBRICATIVE COATING FOR INTERVENTIONAL VALVE DELIVERY SYSTEM AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/254348
Kind Code:
A1
Abstract:
Disclosed are a super-lubricative coating for an interventional valve delivery system and a preparation method therefor. The super-lubricative coating comprises the following raw materials in parts by mass: 2.5 to 16.8 parts of an unsaturated oligomer, 2 to 8 parts of an active diluent, 1 to 4.5 parts of an ultraviolet photoinitiator, 1 to 3 parts of a silicone tackifier, 0.3 to 2.4 parts of a leveling agent, 0.2 to 2.3 parts of 2-methacryloyloxyethyl phosphorylcholine, 1 to 10 parts of polyvinylpyrrolidone, and 50 to 89 parts of a solvent. The present invention further provides a preparation method for the super-lubricative coating. The super-lubricative coating of the present invention has good biocompatibility, and can have good adhesion on the surface of a low surface energy, difficult-to-adhere polypropylene or polyethylene dilatation catheter, and greatly reduces a frictional force between the catheter and a sheath, thereby effectively ensuring smooth operation of a delivery system during use, shortening operation times, and reducing operation risks.
Inventors:
WANG YUNBING (CN)
GAO SHUAI (CN)
LEI YANG (CN)
WU DIMENG (CN)
YANG LI (CN)
GAO SHUAI (CN)
LEI YANG (CN)
WU DIMENG (CN)
YANG LI (CN)
Application Number:
PCT/CN2021/100184
Publication Date:
December 23, 2021
Filing Date:
June 15, 2021
Export Citation:
Assignee:
VENUS MEDTECH HANGZHOU INC (CN)
International Classes:
A61L29/08; A61L29/04; A61L29/14; A61M25/04
Domestic Patent References:
| WO2003061631A1 | 2003-07-31 |
Foreign References:
| CN111686311A | 2020-09-22 | |||
| CN110975017A | 2020-04-10 | |||
| CN111053952A | 2020-04-24 | |||
| CN104774333A | 2015-07-15 | |||
| CN109793941A | 2019-05-24 | |||
| CN104114222A | 2014-10-22 | |||
| CN109966560A | 2019-07-05 | |||
| CN106674486A | 2017-05-17 | |||
| CN102888013A | 2013-01-23 | |||
| CN103739621A | 2014-04-23 |
Attorney, Agent or Firm:
SHINY INTELLECTUAL PROPERTY FIRM (CN)
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