It consists of the creation via laparoscopy (video cameras and minimally invasive intrabadominal instrumentation, without skin injuries) of a bridge between the stomach and a more distal portion of the duodenum, with the consequent alteration in the absorption of nutrients for people who suffer from obesity.

It consists of performing a laparoscopic surgical cut of the stomach so that it adopts the shape of a tube, which reduces its ability to absorb nutrients and the person loses weight.

Laparoscopic realization of a fold or sleeve in the stomach to reduce its ability to absorb nutrients and the person loses weight.