Methods for fabricating coatings for drug delivery devices having gradient of hydration
US8052988B2 · kind B2 · utility
0Cited by
142References
49Claims
0Family size
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Key dates
| Filing date | Jan 18, 2008 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | May 19, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for fabricating a coating for an implantable medical device is provided comprising applying a first polymer on at least a portion of the device to form a first layer of the coating and applying a second polymer on at least a portion of the first layer to form a second layer of the coating. The second polymer has a higher degree of hydration than the first polymer. The first or second polymer can comprise a polyorthoester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.