Biopsy forceps for endoscope
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorTeruo Ouchi
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Abstract
A biopsy forceps for an endoscope has a flexible sheath and a control wire axially movably inserted in the sheath. A control part is connected to the proximal end of the sheath. The control wire is advanced or retracted at the control part to open or close a pair of forceps cups pivotally provided at the distal end of the sheath. The sheath is formed from a member that does not twist in at least one direction about an axis thereof. A rotation control member is provided on or near the control part to rotate the sheath about the axis in a direction in which the sheath does not twist.
Claims8
A biopsy forceps for an endoscope including a flexible sheath, a control wire axially movably inserted in the sheath, and a control part connected to a proximal end of the sheath, the control wire being advanced or retracted at the control part to open or close a pair of forceps cups pivotally provided at a distal end of said sheath, the biopsy forceps comprising:
- said sheath comprising a material that is configured to not progressively twist in the longitudinal axial direction of said sheath;
- and
- a rotation control member provided in a vicinity of the control part to rotate said sheath relative to said control part about said longitudinal axial direction in which said sheath does not twist.
Dependencies are inferred from the claim text.