The invention relates to an endoscopic-surgery apparatus for argon-plasma coagulation to treat biological tissue. In some embodiments, these different types of operations are cellular and D2D operations such that the D2D capable wireless device performs cellular and D2D operations during non-overlapping time periods during one or more DRX cycles. As the contents of a tube are progressively utilized, the fastening structure works to secure the wound portion of the tube in place in order to prevent it from unwinding. The measuring signals reflected on the surface of the medium are received and evaluated by a runtime method. A status representation is associated with the digital signature, where the status representation identifies the status determined for the digital signature. A diverted flowpath is provided for produced hydrocarbons, external to the completion tubing.