PROBLEM TO BE SOLVED: To provide a lowest invasion surgical operation system using a surgical treatment needle type device that enables the operation of a large surgical apparatus, attains minimally low invasion properties, and has a degree of freedom in design.SOLUTION: This surgical treatment needle type device 10 includes: a needle structure 30 configured to directly perform puncturing from a skin surface of a living body an operational tip instrument connection mechanism 50 for attachably/detachably connecting a distal end of the needle structure and a rear end of each of various kinds of operational tip instrument 60 a movable handle 22 successively joined with a rear end of the needle structure and operating the operational tip instrument an operation instrument turning mechanism 23 for turning the operational tip instrument and an operational tip instrument operation part 20 having a main axis needle length adjustment mechanism 26 for adjusting the set length of a main axis needle. The lowest invasion surgical operation system is configured to use: the surgical treatment needle type device 10 and a means 200 for inserting the operational tip instrument into a body cavity, which inserts the operational tip instrument into the body cavity.COPYRIGHT: (C)2013,JPO&INPIT【課題】大型の手術機器も操作可能で極限低浸襲性を実現させ、設計の自由度を備える外科治療用ニードル型デバイスを用いた最低侵襲外科手術システムを提供する。【解決手段】生体皮膚面から直接穿刺可能に構成されたニードル構造30と、ニードル構造の先端部と各種手術先端器具60の後端部とを着脱自在に連結する手術先端器具連結機構50、ニードル構造の後端部に連接され、手術先端器具を作動させる可動ハンドル22、手術先端器具を回動させる手術機器回動機構23、主軸ニードルの設定長さを調整する主軸ニードル長さ調整機構26を有する手術先端器具操作部20と、を備えた外科治療用ニードル型デバイス10、及び体腔内に手術先端器具を挿入する手術先端器具体腔内挿入手段200を用いる。【選択図】図2
