Multi-cell stent with cells having differing characteristics
US5697971A · kind A · utility
Inventors
Key dates
| Filing date | Jun 11, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Jun 11, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/91558
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is a multi-cell stent having at least two different types of cells with each type of cell accomplishing a different purpose. For example, a first type of cell is intended to provide a maximum radial rigidity after stent deployment. A second type of cell is designed to provide increased longitudinal flexibility prior to stent deployment and after stent deployment into a main artery, the second type of cell can be readily balloon expanded at the ostium of a side branch artery to a comparatively large diameter without breaking any of the struts of the stent cell. By this technique, unobstructed blood flow into the side branch can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.