Low particulate lubricious coating with vinyl pyrrolidone and acidic polymer-containing layers
US10980918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 29, 2016 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Feb 29, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Embodiments of the disclosure include lubricious coatings. In an embodiment the disclosure includes a lubricious coating for a medical device including first and second coated layers. The first coated layer is between the second coated layer and the device surface and includes a vinyl pyrrolidone polymer and a photo reactive group. The second coated layer is in direct contact with the first coated layer and is a top coating that includes an acrylic acid polymer. The second coated layer can optionally include photoreactive groups. The coating was found to have a very low number of particulates (e.g., 10 μm or greater) which is very desirable for in vivo use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.