Branch stent for implantation from a main blood vessel and deployment methods
US11540912B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Apr 14, 2022 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Apr 14, 2042 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A branch stent for implantation from a main blood vessel in a plurality of branch blood vessels having respective branch blood vessel diameters, the branch stent comprising: a tubular element having: an axis of elongation; a first and a second tubular element end; the tubular element covered with a tubular element cover; and a parachute element having an unconstrained flat-toroid/disc configuration, the parachute element having a parachute element cover, the parachute element positioned perpendicularly at the second tubular element end, and positioned coaxially to the axis of elongation; wherein the branch stent is implanted from within a fenestrated stent-graft having oversized fenestrations, the fenestrated stent-graft first implanted in the main blood vessel at a bifurcation zone including the plurality of branch blood vessels, with each of the oversized fenestrations having respective diameters larger than respective branch blood vessel diameters; wherein the branch stent and the fenestrated stent-graft are together a multi-stent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.