Patent ID: 11911002
Assignee: OLYMPUS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An overtube device comprising:
a tube body comprising a bending part and a main body part disposed proximally relative to the bending part;
a wire having a distal end part fixed to the bending part, and a proximal end part, the wire extending along a longitudinal axis of the main body part;
an operation part mounted on a proximal end side of the main body part, attached to the proximal end part of the wire, and configured to pull the wire to keep a curved shape of the bending part; and
an overtube base configured to fix the tube body in a longitudinal axis direction so as not to advance and retract, and to hold the wire pulled toward the proximal end side of the main body part,
wherein the overtube base is configured to be switchable between a first state and a second state,
wherein in the first state, the operation part is separated from the overtube base, and the operation part does not pull the wire, and
wherein in the second state, the operation part is attached to the overtube base, and the operation part pulls the wire.