Abstract: The endoscope has an insertion portion, an imaging unit, and a member formed in a given dimension. The insertion portion has an apical portion, an actively curvable portion, and a treatment device channel. The actively curvable portion is located on the proximal side of the apical portion. The treatment device channel is positioned along the longitudinal axis of the insertion portion. The insertion portion is formed of resin. One or more radiopaque members, formed of knowns dimensions, are coated on a surface of the insertion portion or placed in, buried or covered laterally in the insertion portion. The X-ray transmittance of the radiopaque members is different from the X-ray transmittance of the resin forming the insertion portion.

Abstract: An endoscope including an insertion portion including a distal end structure and an active bending section, an image sensor located in the distal end structure, and the image sensor has an optical axis in a first direction, and the first direction intersects a central longitudinal axis of the distal end structure, a treatment instrument channel located in the distal end structure and adjacent the image sensor, and a distal end opening of the treatment instrument channel opens in a second direction, and the second direction intersects the central longitudinal axis, and a suction channel located in the distal end structure, wherein a distal end opening of the suction channel opens in a third direction, and the third direction is different from the second direction.

Abstract: An endoscope system, comprising: an endoscope including an insertion portion, an operation portion, and a connector configured to be connected to an external apparatus, wherein the insertion portion includes a bending portion and wherein the operation portion is connected to the insertion portion; a packaging material, wherein the packaging material contains at least the insertion portion or the operation portion in a sterile environment; and a dome-shaped portion formed in the packaging material, wherein the dome-shaped portion defines a space, and at least a distal section of the bending portion is located inside the space, where in a maximum bent position, the distal section of the bending portion does not contact an inner surface of the dome shaped portion, and wherein the connector is disposed outside of the packaging material.

Abstract: An insertion device includes an insertion portion having an outer peripheral surface and configured to be inserted into a subject, and a suction pipeline provided on the outer peripheral surface of the insertion portion. The suction pipeline is switchable from a first state to a second state and the suction pipeline is configured to maintain the second state. In the first state, a distal end of the suction pipeline is folded, and in the second state, the distal end of the suction pipeline is unfolded.

Abstract: A medical device includes: a first sterilized insertion device including an insertion portion configured to be inserted into a subject, and a cover surrounding a distal end portion of the insertion portion. The cover is configured to be teared by receiving external force so as to make an opening in the cover for exposing the distal end portion.

Abstract: A sterilized endoscope kit, comprising a sterilized endoscope, a sterilized treatment instrument, a sterilized guide wire, and a packaging material. The sterilized endoscope includes a first lumen. The sterilized treatment instrument is inserted into the first lumen, the sterilized treatment instrument includes a second lumen. The sterilized guide wire is inserted into the second lumen. The sterilized endoscope, the sterilized treatment instrument, and the sterilized guide wire are arranged in the packaging material, and the packaging material provides a sterile environment for the sterilized endoscope, the sterilized treatment instrument, and the sterilized guide wire.

Abstract: The endoscope has an insertion portion, an imaging unit, and a member formed in a given dimension. The insertion portion has an apical portion, an actively curvable portion, and a treatment device channel. The actively curvable portion is located on the proximal side of the apical portion. The treatment device channel is positioned along the longitudinal axis of the insertion portion. The insertion portion is formed of resin. One or more radiopaque members, formed of knowns dimensions, are coated on a surface of the insertion portion or placed in, buried or covered laterally in the insertion portion. The X-ray transmittance of the radiopaque members is different from the X-ray transmittance of the resin forming the insertion portion.