Endoscope, and endoscope system
AssigneeOlympus Corporation
InventorKoji Yamaya
Life of this patent
Estimating the term…
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.
Claims16
An endoscope comprising:
- a distal structure portion provided on a distal side of an insertion section;
- a rotational portion including a rotational shaft which is held to be rotatable relative to the distal structure portion, and configured to rotate about the rotational shaft;
- a bearing recessed from an outer surface of the distal structure portion in a direction intersecting an axial direction of the rotation shaft, the bearing being configured to receive and support the rotational shaft in a manner that the rotational shaft may be displaced from the distal structure portion;
- a preventing surface provided on one of the rotational portion and the distal structure portion, the preventing surface being configured to prevent disengagement of the rotational portion by coming in contact with an other of the rotational portion and the distal structure portion;
- and
- an exterior member detachably attached to the distal structure portion,
- wherein the bearing is opposed to the exterior member, the bearing is configured to displace the rotational shaft relative to the distal structure portion in a direction intersecting the axial direction of the rotational shaft without disengagement of the rotational shaft from the bearing when the exterior member is detached from the distal structure portion.
An endoscope comprising:
- a distal structure portion provided on a distal side of an insertion section;
- a rotational portion including a rotational shaft which is held to be rotatable relative to the distal structure portion, and configured to rotate about the rotational shaft;
- a bearing recessed from an outer surface of the distal structure portion in a direction intersecting an axial direction of the rotational shaft, the bearing comprising a slot open to the outer surface of the distal structure portion, the rotational shaft being movable within the slot relative to the distal structure portion, the bearing supporting the rotation shaft such that the rotational shaft is configured to be displaced relative to the distal structure portion in the direction intersecting the axial direction;
- and
- a preventing surface provided on one of the rotational portion and the distal structure portion, the preventing surface being configured to prevent disengagement of the rotational portion by coming in contact with an other of the rotational portion and the distal structure portion;
- wherein a shortest distance between the preventing surface and the rotational shaft is shorter than a shortest distance between the preventing surface and an exterior corner of the slot of the bearing that is closest to the preventing surface.
Dependencies are inferred from the claim text.