the invention relates to a device for producing anastomoses between hollow organs , comprising an inner sleeve mounted around the end of the first hollow organ and an outer sleeve mounted around the end of the second hollow organ , said end being arranged over the end of the first hollow organ , which is turned inside out over the inner sleeve . the inner sleeve and outer sleeve are separable . in order to obtain a secure and durable anastomosis that is easy to carry out , the inner sleeve and outer sleeve comprise electricity - conducting materials , for example in the form of contact surfaces which can be connected to an external power or voltage in order to electrocoagulate the hollow organs that are to be joined .