Patent ID: 11871905
Assignee: OLYMPUS CORPORATION
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A gastro -intestinal-tract ablation system comprising:
an endo scope having an elongated insertion portion;
an elongated ablation treatment tool configured to apply ablation treatment to mucosal tissue;
a tubular overtube that is inserted into the gastro-intestinal tract, and that allows the insertion portion and the ablation treatment tool to pass therethrough;
a first operation member that is provided at a base end portion of the overtube; and
a second operation member that is attachable to and detachable from an intermediate position in a longitudinal direction of the insertion portion of the endoscope,
wherein the overtube has a balloon that is configured to fix the overtube to the gastro-intestinal tract,
wherein the insertion portion and the ablation treatment tool can be integrally moved in the overtube in the longitudinal direction with the endo scope,
wherein the first operation member has a first finger holder configured to hold at least one finger of one hand of an operator,
wherein the second operation member has a second finger holder configured to hold, among fingers of the one hand, at least one finger other than the at least one finger held by the first finger holder, and
wherein the first operation member is distinct from the overtube, and is attachable to and detachable from an outer circumferential surface of the overtube, at an arbitrary position in the longitudinal direction of the overtube.