Esophageal overtube for smoke evacuation
First Claim
1. An esophageal overtube for use with an endoscope, the esophageal overtube comprising:
- a unitary single piece tube member having a distal end, a proximal end, an inner wall, an outer wall, each wall having an outside and inside surface, a conduit defined by the volume between the outside surface of the inner wall and the inside surface of the outer wall, the conduit extending from the distal end to the proximal end, the tube member further having a lumen defined by the inside surface of the inner wall, the inner and outer walls being connected by at least one web portion;
a block disposed on the proximal end of the tube member, the block having a conduit in direct communication with the conduit of the tube member, and an aperture in direct communication with the lumen of the tube member for passage of the endoscope therethrough; and
a vacuum port disposed on the block, the vacuum port having a conduit in direct communication with the conduits of the block and tube member, and an outlet end for connection to a vacuum source, for evacuating smoke from the distal end of the tube member through the conduits of the block, tube member, and vacuum port.
1 Assignment
0 Petitions
Accused Products
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.
60 Citations
19 Claims
-
1. An esophageal overtube for use with an endoscope, the esophageal overtube comprising:
-
a unitary single piece tube member having a distal end, a proximal end, an inner wall, an outer wall, each wall having an outside and inside surface, a conduit defined by the volume between the outside surface of the inner wall and the inside surface of the outer wall, the conduit extending from the distal end to the proximal end, the tube member further having a lumen defined by the inside surface of the inner wall, the inner and outer walls being connected by at least one web portion; a block disposed on the proximal end of the tube member, the block having a conduit in direct communication with the conduit of the tube member, and an aperture in direct communication with the lumen of the tube member for passage of the endoscope therethrough; and a vacuum port disposed on the block, the vacuum port having a conduit in direct communication with the conduits of the block and tube member, and an outlet end for connection to a vacuum source, for evacuating smoke from the distal end of the tube member through the conduits of the block, tube member, and vacuum port. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A method for performing an endoscopic esophageal tumor ablation procedure using an endoscope and an esophageal overtube, the endoscope having an insertion tube having a distal end and a bending section, a working channel disposed in the insertion tube and having an inlet and an outlet at the distal end, and an angulation means for angulating the bending section, the method comprising the steps of:
-
providing an esophageal overtube, for use with the endoscope, the esophageal overtube comprising a unitary single piece tube member having a distal end, a proximal end, an inner wall, an outer wall, each wall having an outside and inside surface, a conduit defined by the volume between the outside surface of the inner wall and the inside surface of the outer wall, the conduit extending from the distal end to the proximal end, the tube member further having a lumen defined by the inside surface of the inner wall, the inner and outer walls being connected by at least one web portion;
a block disposed on the proximal end of the tube member, the block having a conduit in direct communication with the conduit of the tube member, and an aperture in direct communication with the lumen of the tube member for passage of the endoscope therethrough; and
a vacuum port disposed on the block, the vacuum port having a conduit in direct communication with the conduits of the block and tube member, and an outlet end for connection to a vacuum source;preparing the patient by administering medication and/or topical anesthetic; positioning the patient in a manner which facilitates effective performance of the procedure; inserting the esophageal overtube into the patients esophagus; inserting the insertion tube of the endoscope into the esophageal overtube; advancing the insertion tube until the distal end of the endoscope reaches the site of the tumor; inserting a laser probe having a tip and connected to a laser generator into the working channel; advancing the laser probe until the laser probe tip emerges from the working channel outlet; directing the laser probe tip at the tumor by angulating the bending section via the angulation means; energizing the laser probe via the laser generator for ablation of the tumor; applying vacuum to the esophageal overtube such that laser smoke and burnt tissue generated by the energizing of the laser is evacuated from the distal end of the tube member through the conduits of the block, tube member, and vacuum port and into a remote site; removing the endoscope from the esophageal overtube; and removing the overtube from the patient'"'"'s esophagus. - View Dependent Claims (18, 19)
-
Specification