Stent having helical elements
US7967852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Sep 9, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2230/0013
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An expandable stent comprised of a plurality of helical segments is disclosed. In one embodiment, the stent is generally cylindrical in shape having a cylindrical axis, and comprises a first and second set of helical segments. The helical segments in the first set are substantially parallel and have a first pitch forming a first helical angle with respect to the cylindrical axis. The helical segments in the second set are also generally parallel to each other and form a second pitch that differs from the first pitch, thereby forming a second helical angle with respect to the cylindrical axis. In an alternative embodiment, the stent comprises one set of helical segments and a plurality of circumferential elements that are joined together by the helical segments to form a plurality of cylindrical elements which are joined together to form a stent body. The stent may also have endzones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.