Abstract: A channel unit for an endoscope includes a conduit, a mounting member and a connection member having one end connected to the mounting member and another end connected to a distal end of the conduit, the connection member having flexibility and a variable length in a longitudinal direction, and a proximal end side fixing portion of the connection member is movable back and forth in the longitudinal direction with respect to a distal end side fixing portion of the connection member as the conduit moves back and forth in the longitudinal direction.

Abstract: An endoscope includes: a distal-end constituting portion provided at a distal end portion of an insertion portion; a distal end cover attachable to and detachable from the distal-end constituting portion; a movable portion provided in the distal-end constituting portion; a connecting member provided at the movable portion; a pulling and relaxing member that drives the movable portion by being pulled or relaxed; a connecting body provided to the pulling and relaxing member, and attachable to and detachable from the connecting member, the connecting body being detachable from the connecting member in a state where the distal end cover is removed from the distal-end constituting portion; and a tube having flexibility through which the pulling and relaxing member is inserted, the tube including a distal end and a proximal end and being disposed in the distal end portion, the proximal end being detachably connected to the distal-end constituting portion.

Abstract: A conduit cleaning tool includes a long shaft. The shaft includes a linear first part and a second part arranged on a proximal end side with respect to the first part. The second part includes a plurality of bent portions bent to a corrugated shape in a predetermined direction with respect to a longitudinal direction N, and the plurality of bent portions are configured to rub an inner surface of the conduit.

Abstract: An endoscope includes a distal end portion main body arranged at a distal end portion of an insertion portion, the distal end portion main body including a recess, the distal end portion main body including at least one screw hole in at least one of a periphery of the recess or an interior of the recess, a lid configured to cover an opening of the recess, the lid including at least one through-hole at a position corresponding to the screw hole, a resin configured to fill a gap between the lid and the distal end portion main body, at least one screw configured to fix the lid to the distal end portion main body, the screw being inserted through the through-hole and screwed into the screw hole, at least one screw cover having an insulation property and configured to cover an upper surface of the screw, the screw cover being disposed closer to a proximal end side than to the recess, and a distal end cover configured to cover a part of the distal end portion main body.

Abstract: An endoscope includes: a rigid distal structure portion; a rotational portion; an exterior member; a bearing opposed to the exterior member and recessed from an outer surface of the distal structure portion, the bearing being; and a preventing portion. The bearing is configured to receive and support the rotational shaft and to displace the rotational shaft from the distal structure portion by the exterior member being removed from the distal structure portion. The preventing portion provided on one of the rotational portion and the distal structure portion, and configured to prevent disengagement of the rotational portion by coming in contact with the other of the rotational portion and the distal structure portion when the rotational shaft is displaced from the bearing.

Abstract: A washing tool includes a washing tool main body and a supplier. The washing tool main body is attached to a distal framing section of an insertion section of an endoscope in place of a cover, the cover being configured to be attached to the distal framing section. The washing tool main body accommodates the distal framing section in an inside of the washing tool main body in a state where the washing tool main body is attached to the distal framing section. The supplier is configured to supply a fluid to the inside of the washing tool main body.

Abstract: A distal end cover for endoscope attached to and detached from a distal end portion of an insertion section of an endoscope includes a first cover including a nozzle for spraying fluid to at least an observation window or a part located in a visual field range of the observation window and a second cover including a flow channel for circulating, to the nozzle, the fluid fed from a fluid passage

Abstract: A cover includes a cover body and a covering portion. The cover body can include an opening edge exposing a part of a distal structure portion, an annular portion surrounding a periphery of the distal structure portion, a proximal edge, a dividing portion provided in the annular portion in a manner to define a slit that is continuous with the opening edge portion and the proximal edge portion, and an overlapping portion. The dividing portion includes a first cylindrical wall portion, and a second cylindrical wall portion. The first cylindrical wall portion and the second cylindrical wall portion overlap at least partly in the overlapping portion. The covering portion is configured to cover a part, where at least the dividing portion is provided.

Abstract: A distal-end cover is attached to a distal frame portion of an insertion portion of an endoscope main body, along a longitudinal axis of the insertion portion. The distal-end cover includes a cover main body attached to the distal frame portion and a wall provided on the cover main body. The wall is provided between a tube and a raising portion closer to the distal-end side along the longitudinal axis than a first opening edge portion of the distal frame portion when the cover main body is attached to an outside of the distal frame portion along the longitudinal axis of the insertion portion. The wall is deformed by the tube and an elongated member when the cover main body is removed from the outside of the distal frame portion.

Abstract: An endoscope cover includes a cover main body, a fragile portion, and a buffer portion. The cover main body includes a window and an annular portion. The window opens in a radial direction of a longitudinal axis of an insertion section. The annular portion is provided on a proximal side of the window along the longitudinal axis of the insertion section and surrounding the distal framing portion. The fragile portion is provided at a position on the annular portion which is adjacent to the window. The buffer portion is provided on the cover main body. The buffer portion includes an end portion. The end portion of the buffer portion is configured to reduce a force exerted from the distal side of the fragile portion onto the fragile portion along the longitudinal axis.

Abstract: The disclosed technology is directed to a cover removal jig for an endoscope that removes a tip cover applied to a distal end of an insertion section of an endoscope. The cover removal jig includes an enclosing portion and a cylinder connected to the enclosing portion. The enclosing portion is to be applied to the tip cover to surround its circumference, and has a portion engageable with the tip cover. The cylinder is made from elastic material and capable to come into close contact with a part of an outer surface of the insertion section.

Abstract: An endoscope includes: an envelope provided so as to cover an outer surface of an insertion portion; a filamentous member that is wound around an outer surface of the envelope and causes an end portion of the envelope to be fixed to the insertion portion; a resin applied to a spool member in which the filamentous member is wound around the envelope; a protruding portion provided on the outer surface of the insertion portion and formed in one part of the insertion portion in a circumferential direction; a cover member mounted so as to cover an outer circumference of the resin; and a concave portion provided in an inner circumferential surface of the cover member, including a cross-sectional shape homothetic to a cross-sectional shape of the protruding portion, and disposed in a position shifted from the protruding portion in a circumferential direction of the insertion portion.

Abstract: A channel unit for an endoscope includes a conduit, a mounting member and a connection member having one end connected to the mounting member and another end connected to a distal end of the conduit, the connection member having flexibility and a variable length in a longitudinal direction, and a proximal end side fixing portion of the connection member is movable back and forth in the longitudinal direction with respect to a distal end side fixing portion of the connection member as the conduit moves back and forth in the longitudinal direction.

Abstract: An endoscope cover includes: a cylindrical cover main body that is to be attached to a distal framing portion along a longitudinal axis of an insertion section, and that includes an annular portion which is to cover part of an outer periphery of the distal framing portion; and a fragile portion, at least part of which is provided on the annular portion of the cover main body. The cover main body is spaced apart from at least part of the distal framing portion, and forms a gap between the cover main body and the distal framing portion. The fragile portion is broken under application of an intended stress and configured to have a user recognize breakage of the fragile portion in cooperation with the gap.

Abstract: An endoscope attachment is an endoscope attachment that is detachably attachable to a distal end portion part of an insertion portion of an endoscope, and includes a cylindrical member that covers a bonding portion that is arranged in a bending portion of the insertion portion and formed of adhesive, and a flow rate varying member that is disposed in the cylindrical member and varies a flow rate of a medicinal solution that enters from an outside of the cylindrical member to an inside of the cylindrical member.

Abstract: An endoscope cover that is to be attached to a distal framing portion of an endoscope, includes: a cover main body having an annular portion configured to surround a periphery of the distal framing portion; a fragile portion provided in the annular portion of the cover main body, having a mechanical strength lower than a rest of the annular portion.

Abstract: An endoscope cleaning instrument detachably attachable to an insertion section of an endoscope from a distal end portion side of the insertion section includes a covering member having a tubular shape and being capable of covering, on an outer circumferential surface of a bending section connected consecutively to a proximal end of a distal end portion in the insertion section, a distal end side adhesive section disposed on a distal end side of the bending section and formed from an adhesive and a proximal end side adhesive section disposed on a proximal end side of the bending section and formed from the adhesive.

Abstract: An endoscope cover attached in a lock state to a protruding lock portion of a distal framing portion of an insertion section of an endoscope, includes: a cover main body including an annular portion and which is attached to the distal framing portion along a longitudinal axis; a depressed lock portion provided on the cover main body and locked to the protruding lock portion of the distal framing portion; and a groove provided on a part including the proximal end of the annular portion and in which the protruding lock portion is configured to be located when the cover main body is turned with respect to the distal framing portion in the peripheral direction of the longitudinal axis and the protruding lock portion is unlocked from the depressed lock portion.

Abstract: An endoscope includes a distal end member including a fluid passage, a first distal end cover made of an elastically deformable material, a second distal end cover made of a material harder than that of the first distal end cover, and a nozzle. The nozzle includes a nozzle channel portion communicating with the fluid passage and an ejection port. The endoscope further includes a first nozzle configuring portion provided to the first distal end cover, configuring at least part of the nozzle, and configuring at least part of a channel bending portion having a bent shape in the nozzle channel portion. The first nozzle configuring portion is covered by the second distal end cover in a mounted state.

Abstract: A distal end cover device includes: a distal end cover main body that is formed of a rigid material having insulation properties, and is fixed to an outer periphery of a distal end portion of an insertion portion in a removably attachable manner; a ring cover that is formed of a material having elasticity and insulation properties, and is fixed to outer peripheries of the distal end portion and the distal end cover main body in a removably attachable manner; a raising base provided to the distal end cover main body; a shaft portion that is provided to the distal end cover main body, and couples the raising base to the distal end cover main body in a displaceable manner (swingably); and an operation wire that is coupled to the raising base, and is configured to be pulled by an operator to move the raising base.