Radiopaque stents
US6464723B1 · kind B1 · utility
46Cited by
85References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Apr 22, 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 linked, radially aligned expandable rings. The end rings are formed of a radiopaque material while the rings positioned between the end rings are formed of a radio-transparent material. Two very bright fluoroscopic images are created by the end rings, without any compromise in the strength of the stent, while the center of the stent remains transparent so as not to obscure the image of lesion area when the stent is being centered therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.