PROBLEM TO BE SOLVED: To provide a treatment instrument system capable of suppressing unnecessary damage to the intraperitoneal organ and a blood vessel when executing a sutural treatment of a cut portion in a surgery by NOTES (Natural Orifice Translumenal Endoscopic Surgery) technique, at the same time shortening a technique time by improving the efficiency of the technique procedure and reducing burdens applied to an operator and a subject.SOLUTION: This treatment instrument system is provided with: an endoscope 2 having a treatment instrument channel 25 an ultrasonic probe 4a inserted through the treatment instrument channel of the endoscope an ultrasonic observing apparatus 4 having a blood flow display function and a distance measuring function a treatment instrument 17 having, at a distal end portion, an ultrasonic scattering portion A1 for scattering ultrasonic wave and an over tube 15 having an endoscope insertion path 15c through which the endoscope can be inserted and a treatment instrument insertion path 15e through which the treatment instrument can be inserted, and having, at a distal end portion, ultrasonic scattering portions B1 and B2 for scattering ultrasound.COPYRIGHT: (C)2009,JPO&INPIT【課題】NOTES手技による外科手術において切開部位の縫合処置を行なう際に腹腔内臓器や血管等への不要な損傷を抑止しすることができると同時に手技手順の効率化を図り手技時間の短縮化を実現し術者や被検者にかかる負担を軽減し得る処置具システムを提供する。【解決手段】処置具チャンネル25を有する内視鏡2と、内視鏡の処置具チャンネルに挿通される超音波プローブ4aと、血流表示機能及び距離計測機能を備える超音波観測装置4と、超音波を散乱させる超音波散乱部A1を先端部に有する処置具17と、内視鏡を挿通させ得る内視鏡挿通路15cと処置具を挿通させ得る処置具挿通路15eとを備え超音波を散乱させる超音波散乱部B1,B2を先端部に有するオーバーチューブ15とを具備する。【選択図】図1
