Endovascular stent with radiopaque spine
US6585757B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1999 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Sep 15, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0098
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent is formed from a series of radially aligned expandable rings. The rings are formed of a radio-transparent material that are linked by a radiopaque spine. A thin but very bright fluoroscopic image is thereby created, without compromising the strength of the stent. The small cross-section of the illuminated spine also serves to minimize interference with the image of the lesion when the stent is being positioned thereover. In the event galvanic corrosion causes the radiopaque spine to become detached from the radio-transparent ring elements, their expanded state precludes their shifting within the lumen. While the sandwiched position of the spine against the lumen wall prevents it from shifting as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.