Patent ID: 7347816

Claim:
An adaptor for endoscope forceps opening comprising: an adaptor connecting member which is detachably arranged to a forceps valve of an endoscope forceps opening communicated with a treatment tool inserting channel for inserting a treatment tool; a treatment tool integrating member which is fixed in close contact at a part of the treatment tool projected from the forceps valve; and a treatment tool position changing member which stepwise changes the inserting position of the treatment tool in the treatment tool inserting channel when the treatment tool integrating member is in close contact at the treatment tool, wherein the adaptor connecting member comprises an opening groove which is formed in its axial direction and from/to which the treatment tool is detached/attached, and an engaging groove which is integrally formed to the opening groove, the treatment tool integrating member comprises a flexible long member which is connected to the adaptor connecting member and an engaging projection which is fit into the engaging groove and fixes the treatment tool in close contact therewith, the treatment tool position changing member is rotatably connected to the adaptor connecting member and comprises a through-groove from which the treatment tool is detached and an opening notch portion communicated with the through-groove, and the opening groove, the engaging groove, the through-groove, and the opening notch portion are arranged substantially on the straight line.