Design of foam applicator which transforms ExEm®-Gel into ExEm®-Foam

HyFoSy (Hysterosalpingo Foam Sonography) is a gynaecological procedure to test the tubal patency of infertile females. The procedure is performed with a transvaginal ultrasound probe and an intrauterine foam, ExEm©-Foam. The foam distends the walls of the fallopian tubes and has echogenic properties. The ultrasound waves excite the air bubbles...