1. Device for forming a lesion containing a sleeve defining a through channel inside and having a mounting structure at one end thereof； a rod attached to the sleeve defining a through gap with a longitudinal axis inside, the rod having a proximal end attached to the sleeve in communication with the channel and the distal end extending from the sleeve, and at least on the part of the inner surface and at least on the part of the outer surface of the rod has an electrically conductive material； and a conductive element having a longitudinal axis and attached to the mounting structure mating with the mounting structure of the sleeve so that the conductive element passes through the channel into the lumen so that at least near the sleeve the longitudinal axis of the conductive element is spaced from the longitudinal axis of the lumen, which contributes to the creation of an electrical contact between the outer surface of the conductive element and the inner surface of the rod. 2. The device according to claim 1, characterized in that the rod and / or the conductive element is flexible along at least part of its length. The device according to claim 1, characterized in that the conductive element is configured to be selectively removed from the lumen. The device according to claim 1, characterized in that the rod defining a lumen contains a cannula. The device according to claim 1, characterized in that the conductive element is configured to connect to a radio frequency generator. The device according to claim 5, characterized in that the conductive element contains a hypotube element. The device according to claim 1, characterized in that it further comprises an obturator removably inserted into the lumen for substantially1. Устройство для формирования поражения, содержащеевтулку, задающую внутри себя сквозной канал и на одном его конце имеющую монтажную конструкцию；прикрепленный ко втулке стержень, задающий внутри себя сквозной просвет с продольной осью, причем стерж
