Esophageal overtube for smoke evacuation
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United States of America Patent
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-
Dec 8, 1998
Grant Date -
N/A
app pub date -
Sep 15, 1997
filing date -
Sep 15, 1997
priority date (Note) -
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status (Latency Note)
Importance
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.
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