Stent with improved anti-slip function
US10709542B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 6, 2016 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | May 8, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0039
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent with an improved anti-slip function. The stent includes: a cylindrical stent including a plurality of openings formed by weaving wires, and a plurality of peaks, the cylindrical stent being subjected to heat treatment, wherein the cylindrical stent has a PTFE-first artificial blood vessel layer being in entire contact with an inner surface thereof, and a plurality of PTFE-second artificial blood vessel layers being in partial contact with an outer surface thereof, and the first and second artificial blood vessel layers are heat-fused together to encompass the cylindrical stent, thereby forming a plurality of first sections having a plurality of openings obstructed and a plurality of seconds sections having the plurality of openings remaining unobstructed, wherein the first sections are inserted into a lesion while pressing against the lesion, thereby being caught in the lesion, and the second sections are caught in the lesion meshed with the openings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.