The invention relates to a system for simultaneous bilateral treatment of target tissues within ears, and discloses a system for treating tympanum of a patient. The system comprises a tube which is provided with a cut port configured to pass through the tympanum and comprises a receiver, an actuating mechanism which associates the tube and the cut port, and a tympanum pore-forming tube which is supported b the actuating mechanism and comprises a first constraint configuration and a second constraint configuration; and the first constraint configuration is retained in the receiver.