A Clinical Study to Evaluate the Ultrasonic Detection of a Novel Nasogastric Tube in the Human Body.

"Device: The Nasotrak System~The Nasotrak Medical System is intended to aid, in conjunction with institutional protocols, qualified operators in the placement of the Nasotrak's 12 Fr feeding tube into the stomach of patients requiring enteral feeding after insertion and before every feed. The Nasotrak nasogastric tube(NGT) is designed for use with Nasotrak's handheld device (HHD) which is able to detect the tip of the NGT via piezoelectric sensor, which converts ultrasound waves to electronic signals, thus assisting to track its location as an indicator of placement in the stomach. Nasotrak's NGT is intended only to be used with Nasotrak's HHD.~The Nasotrak NGT is intended for the administration of nutrition, fluids and medications by the nasoenteric route for patients who have an intact gastrointestinal tract but are physically unable to manage nutritional intake through normal mastication and deglutition."