Near infra red fluorescence imaging for visualization of blood vessels during endoscopic harvest
US10492671B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2010 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Aug 11, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/489
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Endoscopic identification and dissection of a blood vessel in tissue during endoscopic harvest can be enhanced by injecting a bolus of ICG into the bloodstream, illuminating the target vessels with excitation light capable of exciting fluorescence in the ICG, and locating the vessel to be harvested by observing the ICG fluorescence. Moreover, collapsed blood vessel may be harvested by inserting an endoscope into the collapsed blood vessel, injecting into the collapsed blood vessel a bolus containing ICG to re-inflate the blood vessel, illuminating the target vessels with excitation light capable of exciting fluorescence in the ICG; and locating the re-inflated blood vessel by observing the ICG fluorescence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.