Coating agent for drug releasing stent, preparation method thereof and drug releasing stent coated therewith
US7994213B2 · kind B2 · utility
2Cited by
2References
2Claims
0Family size
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Key dates
| Filing date | May 28, 2008 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Nov 24, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2400/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are a coating agent for drug releasing stents, a method for preparing the same and a drug releasing stent coated therewith. The coating agent for drug releasing stents comprises nanoparticles with a biologically active material entrapped therein, wherein the particles are formed of a polyethyleneimine (PEI)-deoxycholic acid (DOCA) polymer (PDo) in which 1˜8 moles of DOCA are grafted per mole of PEI.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.