ENDOSCOPIC SURGERY DEVICE, METHOD OF INSERTING ENDOSCOPE AND TREATMENT TOOL, AND METHOD OF REMOVING ENDOSCOPE AND TREATMENT TOOL

摘要

An endoscope and a treatment tool which are inserted into an outer tube can move back and forth in interlock with each other, and an operation part of the treatment tool can be prevented from interfering with a proximal end of the endoscope when inserting the treatment tool into the outer tube. An endoscopic surgery device satisfies the following expressions: Lt≦Ls

主权项

1. An endoscopic surgery device comprising:
an endoscope which includes a linear insertion part and is configured to observe a body cavity; a treatment tool including a linear insertion part whose proximal end is provided with an operation part; and an outer tube which is configured to allow each of the insertion part of the endoscope and the insertion part of the treatment tool to be movable back and forth, and in which the insertion part of the treatment tool relatively is movable back and forth with an allowance with respect to the insertion part of the endoscope, wherein the endoscopic surgery device satisfies expressions of Lt≦Ls