Insertion instrument and insertion device
AssigneeOlympus Corporation
InventorsRyosuke Ishizaki, Takehiro Nishiie
Life of this patent
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Abstract
An insertion device includes an insertion section extending along a longitudinal axis, a rotor provided in the insertion section rotating around the longitudinal axis, and an assistance tool attached to the insertion section in a state to cover the rotor from an outer peripheral side. The assistance tool rotates around the longitudinal axis together with the rotor when press force is applied from a first projection of the rotor to a second projection of the assistance tool by a rotation of the rotor. An angular position of the second projection around the longitudinal axis can be recognized from an outside of the assistance tool.
Claims12
An assistance tool for attachment to an insertion section so as to cover a rotor from an outer peripheral side of the insertion section, the insertion section extending from a proximal side to a distal side along a longitudinal axis, the rotor of the insertion section being configured to rotate around the longitudinal axis by the transmission of a driving force thereto, a first projection of the rotor protruding toward the outer peripheral side on an outer peripheral surface of the rotor, the assistance tool comprising:
- a second projection which protrudes toward an inner peripheral side on an inner peripheral surface of the assistance tool, and which is configured to receive a press force from the first projection of the rotor and then configured to rotate around the longitudinal axis due to the rotation of the rotor, thereby rotating the assistance tool around the longitudinal axis;
- and
- a recognition realizing unit which is provided on an outer peripheral surface of the assistance tool, and which is configured to permit an angular position of the second projection around the longitudinal axis to be recognized from an outside of the assistance tool.
An insertion device comprising:
- an insertion section extending from a proximal side to a distal side along a longitudinal axis;
- a rotor which is provided in the insertion section, and which is configured to rotate around the longitudinal axis by the transmission of a driving force thereto;
- a first projection protruding toward an outer peripheral side on an outer peripheral surface of the rotor;
- an assistance tool attached to the insertion section so as to cover the rotor from the outer peripheral side;
- a second projection which protrudes toward an inner peripheral side on an inner peripheral surface of the assistance tool, and which is configured to receive a press force from the first projection and then configured to rotate around the longitudinal axis due to the rotation of the rotor, thereby rotating the assistance tool around the longitudinal axis;
- and
- a recognition realizing unit which is provided on an outer peripheral surface of the assistance tool, and which is configured to permit an angular position of the second projection around the longitudinal axis to be recognized from an outside of the assistance tool.
Dependencies are inferred from the claim text.