发明名称 |
Diffusion-controllable coatings on medical device |
摘要 |
The present invention provides a method for forming on a medical device, preferably an ophthalmic lens, more preferably a contact lens, a diffusion-controllable coating capable of controlling the out-diffusion or release of guest materials from the medical device. The method of the invention comprises: (1) applying one layer of clay and optionally one or more layers of polyionic materials onto the medical device; or (2) applying alternatively a layer of a first polyionic material and a layer of a second polyionic material having charges opposite of the charges of the first polyionic material onto the medical device and releasing the coated medical device into a releasing medium having a composition capable of imparting a desired permeability to the diffusion-controllable coating on the medical device.
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申请公布号 |
US7666461(B2) |
申请公布日期 |
2010.02.23 |
申请号 |
US20040969280 |
申请日期 |
2004.10.20 |
申请人 |
NOVARTIS AG |
发明人 |
QIU YONGXING;CARNEY FIONA PATRICIA;KOTOV NICHOLA;LALLY JOHN MARTIN;MORRIS CAROL ANN |
分类号 |
B05D3/00;G02C7/04;A61F2/14;A61F9/00;A61L27/00;A61L27/30;A61L27/34;A61L31/08;A61L31/10;G02B1/04 |
主分类号 |
B05D3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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