Surmodics, Inc.
Low particulate lubricious coating with vinyl pyrrolidone and acidic polymer-containing layers
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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 .mu.m or greater) which is very desirable for in vivo use.
Status:
Grant
Type:
Utility
Filling date:
29 Feb 2016
Issue date:
20 Apr 2021