Biocompatible coating for a prosthesis and a method of forming the same
US6713119B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2300/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A coating for a prosthesis, for example a stent, and a composition for forming the coating is disclosed. The coating can serve as a primer, allowing substances, such as polymers, to be effectively secured by the prosthesis. Alternatively, the coating can serve as a reservoir, allowing for the local and sustained release of a therapeutic substance to biological tissues. The composition can be formed from an ethylene vinyl alcohol copolymer and a dimethylsulfoxide solvent, with or without a therapeutic substance. Alternatively, the composition can be formed from an ethylene vinyl alcohol copolymer, a dimethylsulfoxide solvent, and a wetting fluid, with or without a therapeutic substance. The composition is applied to a surface of the prosthesis and essentially all of the dimethylsulfoxide solvent or dimethylsulfoxide solvent/wetting fluid is removed or allowed to evaporate to form the coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.