US Patent 10959873 Cups for collecting catamenia

Reusable cups for collecting catamenia having a base, outer and inner walls, apertures, ribs, and ridges. In some examples, the reusable cups include a trimmable stem. In some further examples, the reusable cups include a circumferential band as a double seal for leak protection and to aid the reusable cups in fully expanding upon insertion and while in situ. In further examples, the reusable cups include indentations and indicia at the base of the reusable cups to work in tandem with the ribs and the apertures such that when the reusable cup is pinched at the base, the suction seal at the aperture and the lip is broken.