Fluid containing endoluminal stent
US6358276B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 27, 1999 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | May 27, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An endoluminal stent contains a hollow passageway for the circulation of fluids to treat vascular walls affected with malignant growths or experiencing restenosis. The hollow passageway stent can have one or a plurality of passageways and is configured in a tubular shape with numerous coils, providing an empty tubular lumen through the center of the stent to allow blood flow. The stent is connected to a removable catheter that conducts fluid to the stent. Fluid flow may be regulated by valves incorporated in either the stent and/or the catheter. The stent and catheter are connected to avoid leakage of the fluid. Cryogenic, heated or radioactive fluids are circulated through the stent to treat the affected sites. A method of delivering drugs to the vascular wall is also provided by creating a stent with porous outer walls to allow diffusion of the drug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.