Insertion equipment, attachment tool and drive force transmission unit
AssigneeOlympus Corporation
InventorYutaka MASAKI
Life of this patent
Estimating the term…
Abstract
In an insertion equipment, a cover film forming part of an outer periphery surface of an insertion section has flexibility and is formed of a resilient material. In the insertion section, a protrusion protruding to an outer periphery side is covered by the cover film from the outer periphery side, and the protrusion moves around a longitudinal axis with respect to the cover film due to a transmission of a drive force for rotating an attachment tool. A ring member of the attachment tool is attached to the outer periphery side of the cover film in a state that the protrusion is pressed to an inner periphery side by the ring member via the cover film, and is rotatable around the longitudinal axis with respect to the cover film.
Claims14
Insertion equipment comprising:
- an insertion tool which includes an insertion section extending along a longitudinal axis;
- an attachment tool which is attached to an outer periphery surface of the insertion section, part or all of the attachment tool being configured to rotate around the longitudinal axis due to a drive force transmitted from the insertion section;
- a cover film which forms part of the outer periphery surface of the insertion section, the cover film having flexibility and being formed of a resilient material;
- one or more protrusions which protrude to an outer periphery side, and which are covered by the cover film from the outer periphery side in the insertion section, the one or more protrusions being configured to move around the longitudinal axis with respect to the cover film due to a transmission of the drive force for rotating the attachment tool;
- and
- a ring member which forms part of an inner periphery surface of the attachment tool, and which is attached to the outer periphery side of the cover film in a state in which the protrusions are pressed to a side toward the longitudinal axis by the ring member via the cover film, the ring member being rotatable around the longitudinal axis with respect to the cover film.
An attachment tool which is used together with an insertion tool, the insertion tool including an insertion section, a cover film, and one or more protrusions, the insertion section extending along a longitudinal axis, the cover film forming part of an outer periphery surface of the insertion section, the cover film having flexibility and being formed of a resilient material, the one or more protrusions protruding to an outer periphery side, the protrusions being covered by the cover film from the outer periphery side in the insertion section, the protrusions being configured to move, due to a transmission of a drive force, around the longitudinal axis with respect to the cover film, the attachment tool being attached to the outer periphery surface of the insertion section,
- the attachment tool comprising:
- a driven section which is configured to rotate around the longitudinal axis due to the drive force transmitted through the insertion section;
- and
- a ring member which is coupled to the driven section, and which forms part of an inner periphery surface of the attachment tool, the ring member being attached to the outer periphery side of the cover film in a state in which the protrusions are pressed to an inner periphery side by the ring member via the cover film, the ring member being rotatable around the longitudinal axis with respect to the cover film.
A drive force transmission unit comprising:
- a cover film which extends along a central axis, the cover film having flexibility and being formed of a resilient material;
- one or more protrusions which protrude to an outer periphery side, and which are covered by the cover film from the outer periphery side, the one or more protrusions being configured to move, due to a transmission of a drive force, around the central axis with respect to the cover film;
- and
- a ring member which is attached to the outer periphery side of the cover film in a state in which the protrusions are pressed by the ring member via the cover film to an inner periphery side, the ring member being rotatable around the central axis with respect to the cover film.
Dependencies are inferred from the claim text.