发明授权
- 专利标题: Methods of modifying surface characteristics
- 专利标题(中): 修饰表面特性的方法
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申请号: US09559945申请日: 2000-04-27
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公开(公告)号: US06451871B1公开(公告)日: 2002-09-17
- 发明人: Lynn Cook Winterton , Juergen Vogt , John Martin Lally , Friedrich Stockinger
- 申请人: Lynn Cook Winterton , Juergen Vogt , John Martin Lally , Friedrich Stockinger
- 主分类号: G02C704
- IPC分类号: G02C704
摘要:
Biomedical devices, such as ophthalmic lenses, and methods of making such devices having a surface coating including at least one polyionic layer. A preferred method involves spray coating a polycationic material onto a core lens, rinsing and drying the lens, followed by spray coating a polyanionic material, rinsing and drying. The coating process may be applied a plurality of times to achieve a multi-layer coating on the lens surface. A particularly preferred embodiment is a contact lens comprising a highly oxygen permeable hydrophobic core coated with a 5 to 20 bilayers of hydrophilic polyionic materials.