| 摘要 |
An endoscope, provided with a raising base, is provided, which can securely lock a guidewire using the raising base. In the raising base, which is provided with a treatment-tool support groove and a pair of raising-base side walls on the left and right sides thereof, a inner-to-outer communicably-connected groove which communicably connects the inner side of the treatment-tool support groove-with the outer side thereof is formed in at least one of the pair of raising-base side walls; and when the raising base is positioned at the raised position, the guidewire externally projects through the inner-to-outer communicably-connected groove from the treatment-tool support groove to lock-engage with the raising base. |
| 主权项 |
1. An endoscope provided with a raising base comprising:
a control body; an insertion portion extending from said control body; a raising-base accommodation recess formed in a distal-end proximal portion of said insertion portion; a treatment-tool insertion conduit formed in said insertion portion, a distal-end opening of said treatment-tool insertion conduit being communicably connected with said raising-base accommodation recess, and a flexible longitudinal treatment tool and guidewire being insertable said treatment-tool insertion conduit; and a raising base provided in said raising-base accommodation recess, said raising base being rotatable between a non-raised position and a raised position about a rotational shaft extending in a widthwise direction of said insertion portion, wherein said raising base includes a treatment-tool support groove which extends in a direction extending from said insertion portion; a pair of raising-base side walls positioned on either side of said treatment-tool support groove and opposing left and right surfaces of said raising-base accommodation recess in said widthwise direction of said insertion portion; and a inner-to-outer communicably-connected groove provided on at least one of said pair of raising-base side walls, said inner-to-outer communicably-connected groove being formed as a through-groove in a direction of said rotational shaft and formed as a bottomed groove in a direction of depth of said treatment-tool support groove, said inner-to-outer communicably-connected groove communicably connecting an inner side of said treatment-tool support groove with an outer side thereof, wherein said inner-to-outer communicably-connected groove is engagable with said guidewire and is not engagable with said treatment tool, and wherein, when said raising base is positioned at said raised position, said inner-to-outer communicably-connected groove frictionally engages with said guidewire, with said guidewire guided into said inner-to-outer communicably-connected groove, without causing said guidewire to contact a wall surface of said raising-base accommodation recess. |
