Abstract: With respect to an endoscope distal hood component of the present invention, a protrusion of a distal hood component fitted to the distal end of an endoscope is formed to be elastically deformable in order that when this protrusion is pressed against an observation target, the protrusion is deformed due to an external force at that time, and a part thereof is entered into the range of the observational field of view. Since a part of the protrusion is entered into the range of the observational field of view, the surgeon becomes aware that the protrusion is pressed against the observation target, and does not further press the protrusion against the observation target.

Abstract: An endoscope hood according to the present invention comprises: a hood portion provided to an insertion portion of an endoscope for being inserted into the body cavity, which includes a tube channel having a suctioning function, so as to extend in the forward viewing direction ahead of the distal end surface of an observation optical member for observing the tissue within the body cavity; a ridge formed on at least a part of the hood portion, which has a slope formed such that the cross-sectional thickness thereof becomes smaller toward the forward viewing direction. At least a part of the opening of the tube channel having the suctioning function is formed on the slope. The opening at the forward viewing direction is formed so as to be positioned closer to the observation window than the distal end of the hood portion formed near the tube channel.

Abstract: With respect to an endoscope distal hood component of the present invention, a protrusion of a distal hood component fitted to the distal end of an endoscope is formed to be elastically deformable in order that when this protrusion is pressed against an observation target, the protrusion is deformed due to an external force at that time, and a part thereof is entered into the range of the observational field of view. Since a part of the protrusion is entered into the range of the observational field of view, the surgeon becomes aware that the protrusion is pressed against the observation target, and does not further press the protrusion against the observation target.