An optical feeding tube includes an elongated sheath having a first lumen for delivering nutrients to a gastrointestinal tract and an imaging device disposed in a second lumen. The imaging device provides visualization of an area adjacent a distal end of the elongated sheath. The imaging device can be...http://www.google.es/patents/US6322495?utm_source=gb-gplus-sharePatente US6322495 - Method for placing a feeding tube inside a gastro-intestinal tract
Method for placing a feeding tube inside a gastro-intestinal tract
