Patent ID: 6719685
Filing Date: 2004-04-13
Classification: A61B

Abstract:
An insertion assisting device for an endoscope for assisting oral and percutaneous insertion of an endoscope insertion part into a body cavity, said insertion assisting device comprising:a mouthpiece having a mouthpiece body that has an insertion hole into which a guide tube for guiding an endoscope insertion part is inserted, and a fixing member for fixing said guide tube inserted into said insertion hole of said mouthpiece body to said mouthpiece body, said mouthpiece wherein: a large hole and a small hole are formed in said fixing member, said large hole and said small hole being connected to one another; said fixing member slides between such a first position that said insertion hole of said mouthpiece body overlaps said large hole of said fixing member and such a second position that said insertion hole of said mouthpiece body overlaps said small hole of said fixing member, said fixing member being attached to said mouthpiece body in such a manner as to rotate at said second position; and said guide tube is inserted into said insertion hole of said mouthpiece body and said large hole of said fixing member at said first position, and then said fixing member is slid from said first position to said second position and is rotated by a predetermined amount at said second position to thereby hold said guide tube between an inner periphery of said insertion hole and an inner periphery of said small hole to fix said guide tube to said mouthpiece body; and an index indicating at least one of an insertion length of said insertion assisting device in the body cavity and an index indicating an insertion length of said endoscope insertion part, said index being formed on a surface of said insertion assisting device.