Abstract: A method for holding a rigid endoscope with an endoscope holding member includes holding the rigid endoscope with an attachment and holding the attachment with the endoscope holding member, the attachment configured to be held at the oblique angle by the endoscope holding member. A method for holding a flexible endoscope with an endoscope holding member includes holding the flexible endoscope with the endoscope holding member, the flexible endoscope configured to be held at the oblique angle by the endoscope holding member. This endoscope holding member has a polygonal shape and/or an ellipsoid shape or a shape that is a combination of these, and has at least one hole that can hold an attachment or the flexible endoscope at an oblique angle.

Abstract: A method for holding a rigid endoscope with an endoscope holding member includes holding the rigid endoscope with an attachment and holding the attachment with the endoscope holding member, the attachment configured to be held at the oblique angle by the endoscope holding member. A method for holding a flexible endoscope with an endoscope holding member includes holding the flexible endoscope with the endoscope holding member, the flexible endoscope configured to be held at the oblique angle by the endoscope holding member. This endoscope holding member has a polygonal shape and/or an ellipsoid shape or a shape that is a combination of these, and has at least one hole that can hold an attachment endoscope at an oblique angle.

Abstract: An endoscope hanger which frees a doctor's hands without causing pain to a patient, and a cart, washing sink, washing and sterilization apparatus, stand, and endoscope storage cabinet having said endoscope hanger are provided. This endoscope hanger is characterized by having a polygonal shape and/or an ellipsoid shape (including a perfect circular shape) or a shape that is a combination of these, and is characterized by having at least one hole that can hold an endoscope at an oblique angle; this cart, washing sink, washing and sterilization apparatus, stand, and endoscope storage cabinet comprise said endoscope hanger.

Abstract: A flexible endoscope insertion method includes: rotating a hollow organ by changing the body position to semilateral position or lateral position for observing the lateral wall of the lumen; turning the tip of the flexible endoscope to the lateral wall of the lumen by rotating the endoscope in the counter direction of the lumen; and retracting the organ with the endoscope itself by rotating the endoscope in the counter direction of the lumen. In other embodiments, the method includes: rotating a body cavity by changing the body position to the appropriate position for observing the lateral side of the organ; turning the tip of the flexible endoscope to the lateral side of the organ by rotating the endoscope in the direction of the lateral side of the organ; and retracting the organ with the endoscope itself by rotating the endoscope in the direction of the lateral side of the organ.

Abstract: An endoscope hanger which frees a doctor's hands without causing pain to a patient, and a cart, washing sink, washing and sterilization apparatus, stand, and endoscope storage cabinet having said endoscope hanger are provided. This endoscope hanger is characterized by having a polygonal shape and/or an ellipsoid shape (including a perfect circular shape) or a shape that is a combination of these, and is characterized by having at least one hole that can hold an endoscope at an oblique angle; this cart, washing sink, washing and sterilization apparatus, stand, and endoscope storage cabinet comprise said endoscope hanger.