Coatings for drug delivery devices having gradient of hydration
US8231962B2 · kind B2 · utility
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140References
45Claims
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Key dates
| Filing date | Jan 18, 2008 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A coating for an implantable medical device is provided comprising a first layer including a first polymer and a second layer including a second polymer. The second layer is disposed over at least a portion of the first layer. The second polymer has a lower degree of hydration than the first polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.