Use of an external suction-irrigation device in endoscopy.

A simple and inexpensive external suction-irrigation device, which attaches to the biopsy port of endoscopes, is used to rapidly infuse and aspirate large volumes of fluid. By bypassing the umbilical cord, this system avoids blockage of the instrument while permitting intermittent injections of water and aspirations of luminal contents. It may be operated with one hand. Use of the device as described saves considerable time during many examinations and avoids postponement of other examinations.