Light delivery catheter
US7396354B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 5, 2003 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Sep 5, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/22067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention provides improved light delivery catheters for use in therapeutic methods, such as PDT, that require illumination of target tissue within a blood vessel or other hollow body organ. An improved catheter includes an optical fiber that transmits light from a light source at the proximal end of the catheter shaft to a light treatment zone. An occlusion balloon on the distal end of the catheter shaft adjacent to the light treatment zone receives fluid via an inflation lumen in the catheter shaft. An infusion lumen connects with a plurality of infusion ports at the light treatment zone to deliver infusion fluid to the hollow body organ so that blood can be flushed from the region between the light treatment zone and target tissue.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.