PROBLEM TO BE SOLVED: To provide an insertion instrument by which a plurality of treatment instruments can be applied to a single incisional wound and sizes and arrangements of the treatment instruments can be set as desired, and which can be easily manufactured.SOLUTION: The insertion instrument for medical treatment instruments is a cap member 4 made of an elastic plate configured by demarcating a port setting site 41 indicating a range wherein ports of medical treatment instruments can be set, without presetting an opening hole into a body cavity, on the surface of a cap member 4 which is arranged to the body surface side of a retraction means for keeping an incisional wound in an open state. The port setting site 41 is preferably formed with a transparent elastic material with a thickness min 1.5 mm and max 3.0 mm, tensile elongation min 600%, and tear strength min 35 kN/m and max 50 kN/m. The periphery of the port setting site 41 is formed opaque. The cap member 4 is preferably formed detachably attachable to the retraction means.COPYRIGHT: (C)2012,JPO&INPIT【課題】ひとつの切開創に複数の処置器具を適用可能な挿入器具において、処置器具のサイズや配置を自由に設定することができ、製造が容易な医療用処置具の挿入器具を提供すること。【解決手段】本発明の医療用処置具の挿入器具は、切開創を開いた状態に保持する開創手段の体表側に配置され、弾性部材のプレートよりなるキャップ部材4であって、該キャップ部材4の表面に体腔内への予めの開口孔を設けずに、医療用処置具等のポートが設定可能な範囲を示すポート設定部位41を画定して構成する。前記ポート設定部位41は、好ましくは、厚さ1.5mm以上、3.0mm以下、引張り伸び率600%以上、引裂き強度35kN/m以上、50kN/m以下の透明な弾性部材で形成し、ポート設定部位の周辺は不透明に形成する。また、前記キャップ部材4は、前記開創手段と着脱可能に形成することが好ましい。【選択図】 図1
