US Patent 11464668 Container for menstrual collection and emptying thereof

A container for menstrual collection and emptying thereof, in the shape of a cup or of a flat cup, with a drainage tube composed of at least one very flexible thin-walled portion, and a wall portion of greater thickness. By applying an upward force on the portion, the tube is folded by its portion closing off the liquid passageway, and the tube end remaining directly anchored to the vaginal wall or below a hollow formed in the container. For a mid-day emptying, a downward force is applied on the portion to unfold the drainage tube. The horizontal rim of the cup has a number of notches to aid the folding and can have a sloped shape, or double-ringed.