The tubular body includes two (311,312,411,412), the axial compression and rotation of one end of the tubular body, to the other end, has an area is extensible, respectively, anastomosis device (310, 410) is disclosed. To adjust the length of the anastomosis device, the tubular body of the one, or can be axially moved by a member on the third tubular body These can be axially moved in the tubular body on the other there. Method and device for treating obesity is disclosed, and more specifically, also a method and device for performing a gastric bypass and disclosed. In one exemplary embodiment, between the stomach and intestine, stomach - to form the intestinal anastomosis, and stomach - and parts of the gut of the distal stomach for intestinal anastomosis - proximal to intestinal anastomoses between the part of the intestine, intestinal - comprises forming an intestinal anastomosis, gastric bypass surgery is provided. Is formed between the intestinal anastomosis, Stomach - - esophagus and stomach, the substitute path by via the intestinal anastomosis, the intestine from the esophagus, and to direct at least partially fluid to bypass the stomach. Particularly useful for gastric bypass surgery, also various devices and disclosed. The device may be integrally formed or coupled to the shunt, anastomotic devices, and the like. The device may comprise configured to have an adjustable length, the tubular body of the multiple. Alternatively, or in addition, also a method for repairing a leaking heart valve, and abdominal aortic aneurysms, is disclosed. [Selection Figure 92つの管状本体(311、312、411、412)を含み、それぞれが、管状本体の一方の端部の、他方の端部に対する回転および軸方向圧縮によって、拡張可能である区域を有する、吻合デバイス(310、410)が開示される。吻合デバイスの長さを調節するために、これら管状本体は、第3の部材上で軸方向移動が可能であるか、または一方の管状本体が、他方の管状本体上で軸方向移動が可能である。肥満症を処置するための方法およびデバイスが開示され、より具体的には、胃バイパスを実施するための方法およびデバイスもまた、開示される。例示的な一実施形態では、胃と腸との間に、胃―腸吻合を形成すること、および胃―腸吻合に対して遠位の腸の部分と、胃―腸吻合に対して近位の腸の部分との間に、腸―腸吻合を形成することを含む、胃バイパス手術が提供される。代用経路を、食道と胃―腸吻合との間に形成し、胃―腸吻合を経由して、食道から腸へ、流体を少なくとも部分的に
