Patent ID: 11857163
Assignee: HOYA CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 10:
11. An endoscope including an elevator that is provided at a distal end of an insertion portion and changes a protruding direction of an instrument by swinging, and a drive member that swings the elevator according to an operation from an operation portion, the endoscope comprising:
a main body portion that has a housing recession portion that houses the elevator, a drive member arrangement space that houses the drive member and is liquid-tightly closed off from the housing recession portion, a lid insertion space that puts the drive member arrangement space and an outer space into communication, and a lid member that can be inserted into the lid insertion space and liquid-tightly closes off the lid insertion space when inserted; and
a fitting/holding member that is fitted to the lid member inserted into the lid insertion space and is fixed to the main body portion by a mechanical fixing mechanism, the fitting/holding member restricting separation of the lid member from the lid insertion space,
wherein the lid insertion space is defined by a cylindrical inner circumferential surface, the lid member has a cylindrical outer circumferential surface that opposes the inner circumferential surface that defines the lid insertion space, and the endoscope further comprises an annular sealing member that liquid-tightly blocks a space between the inner circumferential surface that defines the lid insertion space and the outer circumferential surface of the lid member.