Steep-taper flared stents and apparatus and methods for delivering them
US7582111B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 22, 2006 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Aug 22, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/1002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stent includes a first portion including first and second bands of cells that flare outwardly when the stent is expanded from a contracted to a flared condition, and a second portion connected to the first portion by flexible connectors. During use, the stent is introduced into a main vessel in the contracted condition and positioned with the first portion adjacent an ostium and the second portion within a branch vessel extending from the ostium. The first portion is flared, causing first struts of the first set of cells to move from an axial towards a radial and partial circumferential orientation and causing second struts of the second set of cells to move from an axial towards a radial orientation. The stent is expanded further such that the second portion expands within the branch body lumen, and the first and second struts move towards a more circumferential orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.