Apparatus for training the muscles of the female pelvic diaphragm

An apparatus for insertion into a vagina for a controllable training and treatment of the muscles of the female pelvic diaphragm around the vagina and of the vaginal wall muscle, in particular for dilation of adjacent tissue structure, which apparatus is slightly conical and mechanically dilatable along a circumference thereof, an outer surface of said apparatus being made of or covered with a material which is non-allergen and harmless to human tissue, which apparatus has the form of a single unit with an external shell (1) which in the starting position of the apparatus has a length and circumference corresponding to the female vagina in a normal relaxed state, and at one end of the apparatus has a rounded corbel (2) which during use of the apparatus rests against a vaginal entrance, which external shell (1) in a longitudinal direction of the apparatus is divided into a number of mutually separated segments (3-9) connected with a displacement mechanism (10) mounted around an axis of the apparatus, said mechanism being non-rotatably displaceable in the longitudinal direction of the axis, by internal, radially mounted connecting pieces formed as cams or connecting arms on the individual segment (3-9) in such a manner that an axial movement in one direction of the displacement mechanism (10) causes a radial movement of the cams or the connecting arms and hence a dilation and that an axial movement of the displacement mechanism in the opposite direction permits retraction of the segments, by a manual operation of a rotation mechanism (11) for adjustment of the dilation degree of the apparatus, which rotation mechanism consists of a grip (46) mounted on a portion of the apparatus facing outwards during use and a shaft (12, 30) mounted rotatably in the apparatus, and wherein the outer surface of the shaft is provided with external threads (13) meshing with corresponding internal threads on the displacement mechanism (10), thereby imparting an axial movement to the displacement mechanism (10), through turning of the shaft wherein a said segment facing the public bone during use is radially fixed compared to the axis of the apparatus.