PROBLEM TO BE SOLVED: To provide an instrument inserted into a living body, which is inserted into the living body and secures a space necessary for treatment.SOLUTION: The instrument 10 inserted into the living body includes: a contact portion 14 inserted into the living body in the vicinity of a subject organ 12 subjected to the treatment an open/close portion 88 which is equipped with bending tubes 88A, 88B provided on a side brought into contact with the subject organ 12 in the contact portion 14 and on the opposite side of the side and secures a surgery space 32 between the subject organ 12 and the other organ that is different from the subject organ 12 or between the subject organ 12 and an abdominal wall or a chest wall for treating the subject organ 12, and a cable which drives the open/close portion 88 to cause force to act between the subject organ 12 and the other organ that is different from the subject organ 12 or between the subject organ 12 and the abdominal wall or the chest wall.COPYRIGHT: (C)2012,JPO&INPIT【課題】生体内に挿入されて処置のための空間を確保することが可能な生体内挿入器具を提供すること。【解決手段】生体内挿入器具10は、処置の対象となる対象臓器12近傍の生体内に挿入される接触部14と、上記接触部14の対象臓器12と接触する側及びその反対側に設けられた湾曲管88A及び88Bを備える、上記対象臓器12と当該対象臓器12とは異なる臓器との間、又は、当該対象臓器12と腹壁若しくは胸壁との間に、当該対象臓器12を処置するための手術空間32を確保する開閉部88と、上記開閉部88を駆動し、上記対象臓器12と当該対象臓器12とは異なる臓器との間又は当該対象臓器12と上記腹壁若しくは胸壁との間で力を作用させるケーブルと、を有する。【選択図】 図5
