Esophageal overtube for smoke evacuation
US5846182A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Sep 15, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B1/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An esophageal overtube for use with an endoscope in which the overtube has a conduit for evacuation of laser smoke and burnt tissue which is created during esophageal tumor ablation with laser therapy. A vacuum port on the esophageal overtube facilitates connection to a vacuum source which evacuates the laser smoke and burnt tissue to a site remote from the operating environment. An embodiment of the esophageal overtube has a bite block which can be either reusable or detachable from the overtube in a disposable version. Another embodiment of the esophageal overtube has a seal which seals the esophagus from the operating environment. Also disclosed are methods for using the various esophageal overtubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.