Abstract: An endoscope system including an endoscope having an insertion section which extends from a proximal end to a distal end and is inserted into a cavity under inspection and an operation section connected to the proximal end of the insertion section, and a protection cover including an insertion section inserting channel which extends from a proximal end to a distal end and into which said insertion section of the endoscope is insertable and a conduit channel which extends from the proximal end to the distal end, the improvement being characterized in that a distal end portion of the insertion section has a non-circular cross section such as a semicircular or oval cross section and a proximal end portion of the insertion section has a substantially circular cross section. A distal end member of the insertion section inserting channel has an accommodating portion which is a corresponding non-circular cross section.

Abstract: An endoscope system includes an endoscope and a disposable protection cover for covering the endoscope and provided with at least one channel tube. The endoscope has an insertion section which is insertable into a cavity to be inspected, and an operation section connected to a proximal end of the insertion section. The channel tube is arranged relative to the protection cover with a first layout at the operation section and at the proximal end of the protection cover, and with a second layout at the distal end of the protection cover to provide a natural operation feel. A package cover assembly includes package covers for covering the protection cover and the operation section of the endoscope, respectively, and these package covers are detachably attached to a mouthpiece at the proximal end of the insertion section.

Abstract: An endoscope system for use in an endoscopic procedure including a plurality of endoscopes each having an insertion section to be inserted into a cavity under inspection and an operation section to which the insertion section is connected, and a plurality of disposable protection covers each having an insertion section cover for covering said insertion section of the endoscope and an operation section cover for covering said operation section of the endoscope. The operation section of the endoscope is provided with angle knobs for bending a distal end of the insertion section into a desired direction and said angle knobs are detachably secured to a shaft. In said operation section cover, there is formed an aperture through which said shaft is protruded from the operation section cover. All the angle knobs and shafts of all the endoscopes are constructed such that all the angle knobs can be detachably secured to any of the shafts.

Abstract: An endoscope system detachably provided with a cover endoscope possible of being fitted with a cover and used by covering its outer surface with the cover and a coverless endoscope used without being fitted with the cover. A display range and a visual field range of an image that are obtained in the cover endoscope have substantially the same configurations as those of a display range and a visual field range of an image that are obtained in the coverless endoscope.

Abstract: An covered endoscope type of endoscopic apparatus has a covered endoscope and a cover for covering the covered endoscope. The covered endoscope has an elongated flexible inserted portion, an operated portion formed on the base end side of the inserted portion, and a universal cord extending from a side portion of the operated portion. The cover is formed of an inserted portion cover member, an operated portion cover member and a cord cover which cover the inserted portion, the operated portion and the universal cord of the covered endoscope, respectively. An operated endoscope portion fixation mouth member having a forceps inlet and an expansion tube mouth to which an expansion tube provided on an expander is connected is provided at a base end of the inserted portion cover member. An air supply tube, a water supply tube and an aspiration tube are inserted through the inserted portion cover member, the operated portion cover member and the cord cover.

Abstract: In an endoscope cover-sheathed endoscope which is used for endoscopic examination with an insertional part of an endoscope sheathed with an endoscope cover, the surfaces of the insertional part, operational part, and universal cord of the endoscope are all structured to tightly shut out water. Even when contaminated, the endoscope can be immersed in chemical and thus disinfected effortlessly.

Abstract: An insert cover portion having channels including an air-supply tubular passage, a water-supply tubular passage and a suction tubular passage sidewards extending from a joint adjacent to an operator in a direction of the longitudinal axis of the insert cover portion, the insert cover portion having channels further including an external tubular passage extending outwardly. The insert cover portion has the operation facility realized by considering to prevent hindering of the operation by various tubular passages extending from the joint.

Abstract: A cover type endoscope apparatus including an endoscope cover and an endoscope to be covered which is used by being inserted into the endoscope cover. The endoscope cover can be used in common for covering a plurality of endoscopes to be covered having different lengths without changing the length of the cover.

Abstract: In an endoscope system including an endoscope having an insertion section insertable into a cavity under inspection and an operation section having at least one operation switch, said operation section being connected to a proximal end of said insertion section and a disposable protection cover having an insertion section cover for covering said insertion section of the endoscope and an operation section cover for covering said operation section of the endoscope, said insertion section cover includes a forceps channel through which existing forceps for use in ordinary without-cover endoscopes can be inserted. An inner diameter of the forceps channel is determined to be slightly larger than an outer diameter of most frequently used forceps or standard forceps whose number shows a peak in the outer diameter series of the forceps.

Abstract: In an endoscope system including an endoscope having an insertion section to be inserted into a cavity under inspection, a bending portion which is provided in said insertion section near a distal end thereof and is bendable in at least two different directions and an operation section to which a proximal end of the insertion section is connected and a disposable protection cover having an insertion section cover for covering said insertion section of the endoscope and having formed therein an insertion section inserting channel into which said insertion section of the endoscope is insertable and at least one conduit channel, said insertion section and bending portion of the endoscope are formed to have a non-circular lateral cross section, a direction in which said non-circular cross section has a larger size is aligned with a direction in which said bending portion is bent by a maximum bending angle or a direction in which said non-circular cross section has a smaller size is aligned with a direction in whi

Abstract: A cover-type endoscope apparatus comprising an endoscope cover and a covering endoscope used by inserting said covering endoscope into the endoscope cover. A display means for indicating a fitness of the endoscope cover and the covering endoscope is provided on either the endoscope cover or the covering endoscope.

Abstract: A covering endoscope having a curving portion composed of a plurality of curving pieces and an observation optical system and an endoscope cover having an inserting path for inserting the endoscope and a contained unit provided along the inserting path. A side of the curving pieces facing the contained unit is formed of flat surfaces and a coupling portion coupling adjacent ones of the curving pieces are provided in a position near the flat surfaces from a center of the endoscope.

Abstract: An endoscope apparatus of an endoscope cover type using an endoscope cover comprises an endoscope having a long and narrow insertion tube, and an endoscope cover covering at least an endoscope insertion tube. In the endoscope apparatus, flexibility varies in a direction of a longitudinal axis of at least one of the endoscope and the endoscope cover.

Abstract: A covered endoscope system according to the present invention comprises a cover and a coverable endoscope to be inserted into the cover for use. Herein, an optical filter is mounted in the distal part of a cover abutting on the front of an observation optical system of the coverable endoscope.

Abstract: A package assembly for packaging an endoscope cover for covering the outer surface of the endoscope is disclosed. The package comprises a cover for an insertion tube section of the endoscope, and a package base member for accommodating the endoscope cover therein, the cover section is accommodated in the package base member so as not to overlap itself while being in the state of packaging.

Abstract: A cover system endoscope apparatus in which an insert part cover sheath for isolating the insert part of a cover endoscope is airtightly connected to a distal end constructive part of a tip part of an insert part cover. The insert part cover sheath is composed of a soft resin such as polyurethane exhibiting an excellent chemical resistance and a relatively high flexibility. The tip side of the cover sheath is connectively covered on an outer peripheral edge of the rear end of the distal end constructive part. The insert part cover sheath is formed with a forceps inlet on its near-at-hand side. Connected airtightly thereto is an endoscope manipulation part fixing mouth part having an expansion tube mouth for connecting an expansion tube and further a connecting part connected to a cover holding tool. An opening of an endoscope insert channel provided in an interior of the insert part cover sheath is formed on the near-at-hand side of the endoscope manipulation part fixing mouth part.

Abstract: In an endoscope system including an endoscope having an insertion section insertable into a cavity under inspection and an operation section to which a proximal end of the insertion section is connected, and a disposable protection cover having an insertion section cover for covering the insertion section of the endoscope and an operation section cover for covering said operation section of the endoscope, said operation section cover is constructed such that it can be commonly used to cover operation sections of a plurality of endoscopes. Upon removing the insertion section of the endoscope from the insertion section cover, the insertion section section cover is supported by a supporting apparatus including a proximal end supporting unit for supporting a proximal end of the insertion section cover and a distal end supporting unit for supporting a distal end of the insertion section cover.

Abstract: An endoscope cover system endoscope to be used in an endoscope inspection including an endoscope having an elongate inserted part provided with a curvable curving part and an operating part provided with a curving operating knob curving operating the curving part and a channeled endoscope cover having an inserted part cover provided with an endoscope inserting channel through which the inserted part is inserted and such fluid tube path through which a fluid flows as an air feeding tube path so that, when the curving part is curved close to the maximum curvature angle in the maximum curvature angle direction by operating the curving operating knob, the fluid tube path within the inserted part cover will be curved and twisted to move outside in the maximum curvature angle direction.

Abstract: An endoscope cover with a channel covers at least an inserted portion of an endoscope. The endoscope cover has a treatment tool channel into which a treatment tool is inserted and incorporates a treatment tool raising device for moving, to a predetermined position, the treatment tool inserted into the treatment tool channel and protruding from a distal end portion of the treatment tool channel. The endoscope cover includes an endoscope operating portion fixing port portion provided at a proximal end portion of an inserted portion covering portion which covers the inserted portion of the endoscope. The port portion fixes an operating portion of the endoscope inserted into the inserted portion covering portion. A treatment tool raising device operating member connected to the treatment tool raising device for operating the treatment tool raising device is disposed in the endoscope operating portion fixing port portion.

Abstract: A cover-system endoscope comprises the main body of an endoscope and an endoscope cover assembly for covering the main body of the endoscope. The endoscope cover assembly includes a direction changing means such as a tube body, an erecting base having a hinge section or a balloon for erecting the erecting base in order to change the direction of a medical treatment instrument which is inserted through the medical treatment instrument channel.