Stent formed of half-round wire
US5527354A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Mar 22, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A vascular prosthesis stent provides an interior surface that reduces hemodynamic disturbances which interfere with blood flow through the stent and minimizes the reactive tissue response. More particularly, the vascular stent is constructed from a continuous wire that is half-round (i.e., semi-circular) in transverse cross-section. In a completed stent, the semi-circular wire profiles are all on the exterior of the stent body while the planar portions of the wire are all on the interior, with the result that the interior of the stent, comprised of the cross-sectional diameters of the wires, provides a generally smooth surface that minimizes blood flow turbulence, and minimizes the amount of tissue reaction necessary to incorporate the stent into the vessel wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.