Stent having high radial strength
US5964798A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1997 |
| Grant date | Oct 12, 1999 |
| Priority date | — |
| Expiry date | Dec 16, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0098
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable stent for deployment into a vessel having a lumen therein comprising a cylindrical member having a length and having proximal and distal extremities and being formed of a metal having a wall defining a central bore having a longitudinal axis extending from the proximal extremity to the distal extremity. The cylindrical member has an inside diameter and an outside diameter. The cylindrical member is formed of at least one cylindrical segment. The at least one cylindrical segment has a pattern formed therein which when the stent is expanded is capable of forming a truss formed of serially connected three-sided triangularly-shaped truss members. The pattern includes a first sinusoid extending circumferentially through 360.degree. about the longitudinal axis. The first sinusoid is in the form of a plurality of major elements having first and second interconnected struts having respectively first and second lengths forming first and second sides of the truss members and defining open sides therebetween. Alternate major elements have open sides facing in opposite directions. The pattern also includes a plurality of foldable struts disposed within the open sides of the major…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.