Stent and stent graft
US7794492B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 19, 2003 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | May 19, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent formed in a shape of a generally tubular body having a central axis. The stent has a spring function with which the tubular body is diameter-contractible toward the central axis, and the tubular body is expandable to an initial diameter after contraction. The stent maintains a configuration curved along a longitudinal direction of the stent when the stent is not inserted in a sheath. The stent is elongated in a form of a generally straight line along the longitudinal direction when the stent is inserted into the sheath. The stent, being housed in a sheath in the form of a generally straight line, is inserted into a diseased part together with the sheath, is released from the sheath, and radially expands, outwardly after release, to restore and maintain a configuration curved along the longitudinal direction of the stent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.