Remote Manipulation of a Capsule Endoscope

Inclusion Criteria: * Asymptomatic adult volunteer with previously determined normal esophagus and stomach who understands the risks of the procedure. Exclusion Criteria: * Known strictures in the intestine, * Crohn's disease, * Swallowing difficulty, * Age less than 21, * Age over 75 or have a pacemaker, * Presence of implanted metal devices, * Presence of esophageal or bowel disease or conditions that may preclude study participation as a matter of clinical judgment.