The system and manner, although low during invasion operating, overcast removal in technique of the intraperitoneal mirror glass lens, deflection, and purification of the operation fragmentation are made possible, maintain also the visualization of the operation region, the importance it possesses the deflecting system assembly which accompanies physical, aerodynamics, and optical property, the visibility optimization assembly is used. As for the visibility optimization assembly, it is possible to install quick exchange feature, operation manner in order this exchanges the intraperitoneal mirror (includes the capacity which for example, Tip angle which differs, intraperitoneal mirror which accompanies length or diameter) which possesses the dynamic characteristics which differ field of operation altogether sterilization quickly, does not interfere to the operation configuration which the sterilization operation Nogami tip is present, to maintain clear visualization is made possible. The visibility optimization assembly unifies existing set the invasive instruments low. That does not interfere to operation configuration, needs the process of the surgical operation chamber (OR) team or the alteration of minimum of practice.システムおよび方法は、低侵襲手術中に、腹腔鏡レンズの術中の曇り除去、手術破片の偏向、および清浄化を可能にする一方で、手術部位の可視化も維持する、重要な物理的、空気力学的、および光学的特性を伴う偏向器アセンブリを有する、視界最適化アセンブリを使用する。視界最適化アセンブリは、迅速交換特徴を組み込むことができ、これは、滅菌手術野全体で異なる動作特性を有する腹腔鏡(例えば、異なる先端角度、長さ、または直径を伴う腹腔鏡)の迅速交換を行う能力を含み、滅菌手術野上の先在する手術設定に干渉しない、鮮明な可視化を維持するための手術方法を可能にする。視界最適化アセンブリは、既存の一式の低侵襲器具類と一体化する。それは、手術設定に干渉せず、外科手術室(OR)チームのプロセスまたは実践の最小限の変更を必要とする。