PROBLEM TO BE SOLVED: To easily manipulate an endoscope and a treatment instrument in respective desired positions and orientations while a state of the treatment with the treatment instrument can be easily observed by using an endoscopic image.SOLUTION: A medical device guide system 100 includes: a guide wire 20 having flexibility to be able to curve in a substantially U-shape in a pericardial cavity an endoscope 1 having a thin and long insertion portion 2 which can be inserted in the pericardial cavity and where a channel 3 in which the guide wire 20 is inserted is formed in a longitudinal direction and a guide device 10 which can be inserted in the pericardial cavity and has a thin and long tube member 11 in which a first lumen 12 where the guide wire 20 is inserted and a second lumen 13 where a treatment instrument 30 is inserted are formed in the longitudinal direction. The guide wire 20 has two stoppers which are provided at a distance depending on a depth of field of the endoscope 1 in middle positions in the longitudinal direction and have outer diameters that are larger than bore diameters of openings on respective distal end sides of the channel 3 and the first lumen 12.COPYRIGHT: (C)2015,JPO&INPIT【課題】内視鏡画像によって処置具による処置の様子を容易に観察可能でありながら、内視鏡および処置具をそれぞれ所望の位置および姿勢に容易に操作する。【解決手段】心膜腔内において略U字形状に湾曲可能な可撓性を有するガイドワイヤ20と、心膜腔内に挿入可能であり、ガイドワイヤ20が挿入されるチャネル3が長手方向に形成された細長い挿入部2を備える内視鏡1と、心膜腔内に挿入可能であり、ガイドワイヤ20が挿入される第1のルーメン12および処置具30が挿入される第2のルーメン13が長手方向に形成された細長いチューブ部材11を備えるガイド装置10とを備え、ガイドワイヤ20が、長手方向の途中位置に、内視鏡1の被写界深度に応じた間隔を空けて設けられ、チャネル3および第1のルーメン12の各先端側の開口の口径よりも大きな外径を有する2つのストッパを有する医療用デバイスガイドシステム100を提供する。【選択図】図1
