Guide tube, treatment system and guide-tube attachment method
AssigneeOlympus Corporation
InventorsRyoji HYODO, Koji NISHIZAWA
Life of this patent
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Abstract
Provided is a guide tube including an elongated sheath into which an elongated treatment tool is inserted so as to be movable in a longitudinal direction and that is arranged so as to be parallel to an endoscope, wherein: the sheath has a first end having a projection port from which the treatment tool projects and a second end having an insertion port into which the treatment tool is inserted and is divided, in the longitudinal direction, into a first region including the first end and having flexibility and a second region including the second end; the second region has a high-rigidity portion having higher rigidity than a rigidity of the first region; and a lengths of the first region is not greater than a length of the second region.
Claims13
A guide tube comprising an elongated sheath into which an elongated treatment tool is inserted so as to be movable in a longitudinal direction and that is arranged so as to be parallel to an endoscope, wherein:
- the sheath has a first end having a projection port from which the treatment tool projects and a second end having an insertion port into which the treatment tool is inserted and is divided, in the longitudinal direction, into a first region including the first end and having flexibility and a second region including the second end;
- the second region has a high-rigidity portion having higher rigidity than a rigidity of the first region;
- and
- a lengths of the first region is not greater than a length of the second region.
A guide tube comprising an elongated sheath into which an elongated treatment tool is inserted in a longitudinal direction and that is arranged so as to be parallel to an endoscope, wherein:
- the sheath has a first end from which the treatment tool projects and a second end into which the treatment tool is inserted and is divided, in the longitudinal direction, into a first region including the first end and having flexibility and a second region including the second end;
- the second region has a high-rigidity portion having higher rigidity than a rigidity of the first region;
- and
- the high-rigidity portion includes a length adjusting mechanism.
A treatment method using a guide tube including an elongated sheath into which an elongated treatment tool is inserted in a longitudinal direction and that is arranged so as to be parallel to an endoscope, the sheath being divided, in the longitudinal direction, into a first region including a first end from which the treatment tool projects and having flexibility, and a second region including a second end into which the treatment tool is inserted and having a high-rigidity portion having higher rigidity than a rigidity of the first region, the method comprising:
- inserting only the first region into a body cavity;
- and
- rotationally operating the treatment tool after the inserting.
Dependencies are inferred from the claim text.