Hybrid stent fabrication using metal rings and polymeric links
US6770089B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jun 16, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0013
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable hybrid stent having metallic rings and polymer interconnecting links is disclosed. One embodiment of the stent has radially expandable cylindrical rings generally aligned on a common axis and interconnected by one or more polymer links that attach at formations formed in the rings. The polymer links have sufficient column strength to keep the rings from collapsing together axially. The formations may be holes, notches, grooves, channels, dovetails, or the like and the links wrap around, pass through, or lie on the formations. The junction of the link and ring at the formation is then melted and allowed to solidify. Alternatively, beads may be formed on either side of where the link passes through a hole in the ring thus securing the ring to the link.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.