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Overtube introducer for use in endoscopic bariatric surgery

Overtube introducer for use in endoscopic bariatric surgery description/claims

This is application claims priority to U.S. Provisional Application No. 60/950,584, filed Jul. 18, 2007

This application describes an overtube/introducer device that gives access to body cavities using natural orifices of the body (e.g., esophagus, anus, vagina) for a variety of therapeutic and/or diagnostic procedures. In a particular application, the overtube/introducer enables the introduction of devices into the gastrointestinal tract of a patient via the mouth and esophagus. Therapies to be carried out using the introducer can include procedures designed for the treatment of obesity. The disclosed overtube provides in and out access to the targeted procedural site and protects the body tissue during the procedure from trauma.

The disclosed overtube is suitable for use in an exemplary procedure in which the geometry of the stomach is modified and implantable devices are deployed. The procedure is preferably performed entirely through the naturally existing orifice of the mouth, without additional external incisions.

The exemplary procedure is initiated with the introduction of an overtube into the mouth and, at a minimum, past the pharynx of a patient but preferably reaching and sealing against the lower esophageal sphincter (LES). For reference, FIG. 1 shows the anatomy of the human head and stomach, with reference numerals identifying the following features: 1. Body of stomach 2. Fundus 3. Anterior wall 4. Greater curvature 5. Lesser curvature 6. Lower esophageal sphincter (LES)/gastroesophageal junction 9. Pyloric sphincter 10. Pyloric antrum 11. Pyloric canal 12. Angular notch 13. Gastric Canal 14. Rugal folds

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Industry Class:
Surgery

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