ENDOSCOPE CLEANING SHEATH AND ENDOSCOPE DEVICE

摘要

An endoscope cleaning sheath includes a sheath main body, a distal-side fixing portion fixed to a distal portion of the sheath main body, and a proximal-side fixing portion fixed to a proximal portion of the sheath main body. The endoscope cleaning sheath includes a linear portion having a distal end fixed to the distal-side fixing portion at a distal-side connecting position and a proximal end fixed to the proximal-side fixing portion at a proximal-side connecting position, extended along a linear core axis between the distal-side connecting position and the proximal-side connecting position, and having a higher tensile strength in directions parallel to the longitudinal axis than the sheath main body.

主权项

1. An endoscope cleaning sheath attached to an endoscope which includes an insertion section extended along a longitudinal axis, and in which an observation window is provided to a distal portion of the insertion section, the endoscope cleaning sheath comprising:
a sheath main body including: an insertion duct defining portion defining an endoscope insertion duct, which enables the insertion section of the endoscope to be inserted therein, along the longitudinal axis; and a fluid duct defining portion defining a fluid duct which enables a fluid to be supplied from a proximal direction toward a distal direction; a distal-side fixing portion which is fixed to a distal portion of the sheath main body, and which includes a fluid emitting portion enabling emission of the fluid having passed through the fluid duct toward the observation window of the endoscope in a state that the endoscope cleaning sheath is attached to the endoscope; a proximal-side fixing portion which is fixed to a proximal portion of the sheath main body; and a linear portion which has a distal end fixed to the distal-side fixing portion at a distal-side connecting position, and a proximal end fixed to the proximal-side fixing portion at a proximal-side connecting position, and which is extended along a linear core axis between the distal-side connecting position and the proximal-side connecting position, the linear portion having a higher tensile strength in directions parallel to the longitudinal axis than the sheath main body.