Stent for keeping open tubular structures
US6808535B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2001 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Dec 27, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/931
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent made of metallic and/or non-metallic material that can be implanted into tubular structures or other body cavities is coated with nanoscale particles that consist of a paramagnetic core and at least one shell adsorbed to it which is durably bonded to the stent surface. This coating makes it possible to selectively and homogeneously heat up the implant by applying an alternating magnetic field with a clinically tolerable combination of field strength and frequency, thereby achieving high power absorption and, on the one hand, a temperature level that enhances the growing-in of the implant by enhancing cell proliferation, on the other hand, a temperature range in which a restenosed implant can be regenerated. Also, it facilitates position detection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.