Biofragmentable anastomoses rings represent a fascinating concept: Stan dardization of anastomoses, secure technique in application, expulsion of the material without residuals. In addition, one single technique allows to perform the classical end to end, end to side, and side to side anastomoses in most areas of the gastrointestinal tract, without any auxiliary tool. This means a great advantage of practicability. Controlled studies evidenced that the rate of complications is very small for the intestinal tract. Therefore, it is important to establish the localization for present indication...