Splitting the imaging system from the laparoendoscopic single site surgery device in endoscopic uniportal surgery: ZEUS project.

The use of a rigid tube endoscope (RTE) through a laparoendoscopic single site surgery device for intracavitary visualization during endoscopic uniportal surgery (EUS) is directly related to the fulcrum effect and physical competition (externally between surgeons and on instrumentation through the single port). These facts may have precluded a wider spread of EUS. In an attempt to separate the imaging system from the laparoendoscopic single site surgery device, a tiered project (3 models) that can help overcome these drawbacks is detailed. ZEUS1, a new non-RTE imaging system device for EUS was successfully tested in EUS surgery in a pig model. Still under investigation, ZEUS2 becomes a wired structure that serves as the basis for an endoscopic microcamera with intracavitary pan-tilt-zoom functions. ZEUS3 uses the inner ring of the surgical wound protector as a microchamber crown. Further studies are needed to materialize the ZEUS2 and ZEUS3 models and confirm their efficacy and safety.