Abstract: An insertion assisting tool for an endoscope into which an insertion section of the endoscope is inserted from a base end portion side, comprising: a fluid sealing device which seals a space between a base end part of the insertion assisting tool and the endoscope insertion section, the space being formed while the insertion section of the endoscope is inserted into the base end portion side.

Abstract: A hood 200 for an endoscope has a tube shape and is fitted to an end of an insertion part 12 of the endoscope. A base end 200B of the hood 200 is fitted to a forward end 60A of a first balloon 60. The forward end 60A of the first balloon 60 is fixed to the insertion part 12.

Abstract: An endoscope apparatus comprises: an endoscope comprising an insertion portion, wherein an air hole is formed at a distal end of the insertion portion; and a balloon attached to the distal end of the insertion portion, the balloon being expanded by supply of air through an inlet/outlet port of the air hole and contracted by suction of air through of the inlet/outlet port, wherein the inlet/outlet port of the air hole is formed to be inclined at a predetermined angle to an axis of the insertion portion of the endoscope.

Abstract: A balloon controller for an endoscope apparatus which enables an operator to correctly and immediately grasp circumstances relating to an abnormal condition at the time of occurrence of the abnormal condition. The balloon controller controls expansion and shrinkage of each of a first balloon attached to an insertion portion of an endoscope and a second balloon attached to an insertion assist implement, by supplying air to the balloon or drawing air from the balloon. Pressure indicating portions on which the values of pressures in the first and second balloons are displayed are provided in a front surface of a main body of the balloon controller. When an abnormal condition occurs, an error code and the pressure values are alternately displayed on the pressure indicating portions.

Abstract: An endoscope apparatus comprising an endoscope and an insertion aid through whose base end of an insert part of the endoscope is inserted, wherein the outer circumferential face of the insert part of the endoscope and/or the inner circumferential face of the insertion aid is coated with a lubricating coat material, and the lubricating coat material is formed thicker in the tip portion of the outer circumferential face of the insert part of the endoscope and/or the inner circumferential face of the insertion aid than in the base end portion of the same.

Abstract: A hand operation portion of an endoscope is held by an endoscope holder of a holding device, and an insertion auxiliary member is held by an auxiliary member holder. The endoscope holder and the auxiliary member holder are slidably supported along a guide rail on a stage, and linearly moved toward a mouth of a patient.

Abstract: A first balloon is fitted to an insertion portion of an endoscope and a second balloon is fitted to an insertion aid member. An end connector of a tube is connected to a balloon control device that supplies and sucks air into and from the first balloon and the second balloon. A duct that communicates with the first balloon, a duct that communicates with the second balloon, and a duct that communicates with a clearance between the insertion portion and the insertion aid member are formed in the end connector.

Abstract: A balloon control device for controlling an expansion and contraction of a balloon fixed to one of an insertion unit of endoscope and an insertion adapter by supplying and suctioning of fluid to the balloon, comprising: a channel for conveying the fluid between the balloon control device and the balloon; and a gas/liquid separator for separating gas and liquid from the fluid in the channel.

Abstract: An insertion assisting tool for an endoscope into which an insertion section of the endoscope is inserted from a base end portion side, comprising: a fluid sealing device which seals a space between a base end part of the insertion assisting tool and the endoscope insertion section, the space being formed while the insertion section of the endoscope is inserted into the base end portion side.

Abstract: A balloon attaching jig is constituted by a ring member and a pair of nail members. After the insertion of the pair of nail members into an attaching hole of a balloon, the leading end of an insertion portion of an endoscope is pushed into an opening of the ring member. The diameter of the pair of nail members is expanded by a pushing-in force of the leading end of the insertion portion generated during this pushing in. As a result of this, the leading end of the insertion portion is inserted into the attaching hole of the balloon and hence the balloon can be easily attached to the leading end of the insertion portion of the endoscope.

Abstract: According to the present invention, a fixing member is integrated with a mouthpiece body through slide grooves and a rotational groove, and this improves the portability. Moreover, a guide tube can easily be fixed to the mouthpiece body only by rotating the fixing member with the rotational groove. Furthermore, an index is formed on the outer peripheral surface of the guide tube. The index is composed of scale lines formed at regular intervals and scale numbers formed at predetermined scale lines. The scale numbers represent the distances from a front end of the guide tube to the scale line, and the distances from a back end of the guide tube to the scale line. The index of the guide tube is used in combination with an index formed on an endoscope insertion part, and this makes it possible to correctly recognize the insertion length of the endoscope insertion part inserted into a body cavity of a subject.

Abstract: In a tube connecting structure of an endoscope, a fluid supply tube is connected to a gas supply tube and a liquid supply tube via a tube joint. The tube joint is arranged at the inside of an insertion part of the endoscope, and is constructed of a main tube and a branch tube. The branch tube is provided next to the main tube, while an end of the branch tube protrudes to be longer than an end of the main tube.

Abstract: In a tube connecting structure of an endoscope, a fluid supply tube is connected to a gas supply tube and a liquid supply tube via a tube joint. The tube joint is arranged at the inside of an insertion part of the endoscope, and is constructed of a main tube and a branch tube. The branch tube is provided next to the main tube, while an end of the branch tube protrudes to be longer than an end of the main tube.

Abstract: According to the present invention, a fixing member is integrated with a mouthpiece body through slide grooves and a rotational groove, and this improves the portability. Moreover, a guide tube can easily be fixed to the mouthpiece body only by rotating the fixing member with the rotational groove. Furthermore, an index is formed on the outer peripheral surface of the guide tube. The index is composed of scale lines formed at regular intervals and scale numbers formed at predetermined scale lines. The scale numbers represent the distances from a front end of the guide tube to the scale line, and the distances from a back end of the guide tube to the scale line. The index of the guide tube is used in combination with an index formed on an endoscope insertion part, and this makes it possible to correctly recognize the insertion length of the endoscope insertion part inserted into a body cavity of a subject.

Abstract: According to the present invention, a fixing member is integrated with a mouthpiece body through slide grooves and a rotational groove, and this improves the portability. Moreover, a guide tube can easily be fixed to the mouthpiece body only by rotating the fixing member with the rotational groove. Furthermore, an index is formed on the outer peripheral surface of the guide tube. The index is composed of scale lines formed at regular intervals and scale numbers formed at predetermined scale lines. The scale numbers represent the distances from a front end of the guide tube to the scale line, and the distances from a back end of the guide tube to the scale line. The index of the guide tube is used in combination with an index formed on an endoscope insertion part, and this makes it possible to correctly recognize the insertion length of the endoscope insertion part inserted into a body cavity of a subject.