Abstract: A case body includes a distal end side case configuring a part of a case body exterior, a center portion case disposed in a position adjacent to the distal end side case and configuring a case body exterior in conjunction with the distal end side case, a first elastic seal member disposed to be exposed as a case body exterior in a boundary between the distal end side case and the center portion case provided adjacent to each other, and an abutting section configured to set a crushing amount of the first elastic seal member, the abutting section including an abutting surface provided in one of the distal end side case and the center portion case and coming into contact with a bottom surface of another exterior member.

Abstract: An insertion device includes an insertion portion, a grasping portion, and a flexible tube that extends from a major angle side corresponding to a minor angle with respect to a center axis for an end portion on a proximal end side of the grasping portion, and the end portion is provided at a position where a thenar portion of an operator can come into contact with the grasping portion and the flexible tube when the operator grasps the grasping portion, and an extension direction of the flexible tube is inclined to the major angle side with respect to the center axis.

Abstract: An endoscope includes: an insertion portion including a bending portion bendable at least in a vertical direction on a distal end portion side; an operation portion to which a proximal end portion of the insertion portion is connected; a traction wire including a first end and a second end, connected to the insertion portion at the first end, and configured to bend the bending portion by being pulled; a fixing member fixed to the second end of the traction wire; a holding member configured to hold the fixing member; and a pulley turnably provided inside the operation portion and including a disposing portion where the holding member is disposed.

Abstract: An endoscope includes: an insertion portion including a bending portion bendable at least in a vertical direction on a distal end portion side; an operation portion to which a proximal end portion of the insertion portion is connected; a traction wire including a first end and a second end, connected to the insertion portion at the first end, and configured to bend the bending portion by being pulled; a fixing member fixed to the second end of the traction wire; a holding member configured to hold the fixing member; and a pulley turnably provided inside the operation portion and including a disposing portion where the holding member is disposed.

Abstract: An endoscope includes: an insertion portion including a bending portion; a cylindrical operation portion provided so as to be continuous with a proximal end side of the insertion portion; a cylindrical extension portion provided so as to be continuous with a proximal end side of the operation portion; and a bending provided pivotally at the operation portion.

Abstract: An electronic endoscope includes an insertion portion including an insulative distal end hard portion main body at a distal end thereof, an operation portion provided at a proximal end portion of the insertion portion and including a connector connection electrically connected to a ground portion, a ground metal member provided between the main body and the operation portion, forming a structure of the insertion portion, and being electrically conductive to the ground portion through the connector connection, an observation optical system including an optical element and a frame member having conductive properties and holding the optical element, and being extended from the distal end of the insertion portion toward the operation portion, and a conductive connecting portion allowing the frame member of the observation optical system to become electrically conductive with respect to the ground metal member.

Abstract: An electronic endoscope includes an insertion portion including an insulative distal end hard portion main body at a distal end thereof, an operation portion provided at a proximal end portion of the insertion portion and including a connector connection electrically connected to a ground portion, a ground metal member provided between the main body and the operation portion, forming a structure of the insertion portion, and being electrically conductive to the ground portion through the connector connection, an observation optical system including an optical element and a frame member having conductive properties and holding the optical element, and being extended from the distal end of the insertion portion toward the operation portion, and a conductive connecting portion allowing the frame member of the observation optical system to become electrically conductive with respect to the ground metal member.