Abstract: A luminal coupling tube system for providing access to a lumen of a subject is disclosed. The system includes an internal magnet assembly, a snare assembly, an external magnet, a pull wire system and a feeding tube assembly. The internal magnet assembly includes an internal magnet having a first coupling surface and a tether for traversing an endoscope instrument channel. The snare assembly includes a snare, a snare operating device, and a cable. The external magnet includes a second coupling surface. The polar orientation of the external magnet is opposite the polar orientation of the internal magnet such that the first and second coupling surface are magnetically attracted. The pull wire system includes a needle, a cannula and a pull wire. The feeding tube assembly includes a tube, a snare, a connector, and a dome fixed to the tube. A method of use is disclosed.