Forceps stopper for endoscope
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorTeruo Ouchi
Life of this patent
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Abstract
A forcep stopper of an endoscope includes an annular seal member disposed on an inlet of a channel through which a treatment tool is inserted. The forcep stopper has a circular hole whose diameter is dimensioned to be smaller than an outer diameter of a sheath of the treatment tool. The stopper is made of an elastic material such that the hole expands when the treatment tool passes through the hole. Further, a squeeze member is provided for inwardly squeezing the annular seal member from opposite lateral sides of the annular seal member in such a manner that the hole is tightly closed.
Claims7
A forcep stopper of an endoscope comprising:
- an annular seal member adapted to be disposed in an inlet of a channel through which a treatment tool is insertable, said annular seal member having a circular hole whose diameter is so dimensioned to be smaller than an outer diameter of a sheath of the treatment tool, said seal member comprising an elastic material, such that said hole expands when the treatment tool passes through said hole;
- and
- a squeeze member for inwardly squeezing said annular seal member from opposite lateral sides of said annular seal member such that said hole is tightly closed, said annular seal member having a cross-sectional shape such that a thickness of said annular seal member progressively decreases toward said hole.
Dependencies are inferred from the claim text.