The present invention relates to a device for the production of anastomses between a first and a second hollow organ. It is known to apply a high-frequency current for connecting hollow organs in order to achieve coagulation of tissue sections. For this purpose it is necessary that the individual sections of the hollow organs abut each other. In order to be able to ensure an optimum connection, an instrument is required which provides exact closing and coagulation conditions, even in the case of differing target tissues. Said problem is solved according to the invention by means of a device for producing anastomoses between a first and a second hollow organ, each having an inner and an outer surface. According to the invention the device comprises a sheath having an electrode arrangement,over which the first hollow organ is placed such that its inner surface comes to lie on a outermost surface of the sleeve, and an outer electrode arrangment, which can be brought into electrical contact with the opposing electrode arrangement carrying the second hollow organ, which is pulled over the first hollow organ. The outer electrode arrangment comprises a plurality of lamellae, configured and arranged moveable such that, in a closed state, the lamellae form a through aperture and the inner edges of the lamellae lie against the second hollow organ and, in an open state, a gap leading from the exterior toward the through aperture is formed between the lamellae through which the hollow organs connected to one another can be guided outwardly out of the through aperture.