Radial strength stent
US6176872A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 15, 1995 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Aug 15, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2002/91558
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
With the foregoing in mind, the stent as described in this invention comprises a plurality of expandable cells. The cells are arranged circumferentially about the stent so that the stent in an unexpanded condition has a generally cylindrical construction and the expandable cells contain at least one metal bridge and at least one other circumferential arrangement of cells, and the bridge is initially arranged in a folded condition in the stent. When the cells expand, the bridge lengthens to a generally straight configuration. This straight configuration forms an arc of a circle about the cylindrical expandable stent. Ideally, there are multiple bridge connections made so that the stent has a full circumferential solid cross section along at least a portion of the cylindrical device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.