This book focuses on a novel series of minimally invasive surgeries performed without gas insufflation and through a single port using the RoboSurgeon system. The concept of RoboSurgeon surgery involves a degree of "robotization" of the operator and participants. The operator, wearing a head-mounted display, uses robot-like handheld instruments. The endoscope is controlled by the movement of the operator's head using a gyro-sensor system. All participants wearing head-mounted displays can see the same images as the operator does. Although this surgery is mainly intended for urological...