This new form of surgery, also known as Single Port Surgery, Single Port Laparoscopy (SPL), Single Port Access Surgery (SAP) or One Port Umbilical Surgery (OPUS), has been made possible by advances in the production of surgical instruments. The small tools can be optimally adapted to the internal structures of the body. These improvements allow surgeons to insert the instruments into the body through a single small incision of 10-15 mm in length using the SILS procedure.