METHOD OF MAKING OF MAMMARY GLAND PROSTHESIS AND DEVICE FOR ITS REALIZATION Russian patent published in 1998 - IPC

FIELD: medicine, applicable for final prosthesis after physical and psychological stabilization of patient woman with due account made for the age, preservation of the breast dimensions, skin color and other factors. SUBSTANCE: a cavity of thermoplastic film is formed and filled with filler. The filler is vacuumized before and after filling of the cavity. Constant pressure is maintained on the side of the film external surface forming the cavity in the process of cavity filling with filler and its subsequent vacuum treatment. Then the coating thermoplastic is applied, the filler is cured, and the cavity is sealed by welding of films. Prior ranges of pressure within which the pressure of vacuum treatment of the filler after cavity filling is selected, and pressure maintained on the side of the film external surface forming the cavity, as well as the difference of the mentioned pressures, are given. Indicated also are the values of pressure applied to the weld, pressure and temperature at which the filler is cured by vacuum treatment, and the filler volume. The filler is cured and the films are welded simultaneously. Gas is evacuated from the cavity area is reduced duct in the die, whose flow area is reduced down to a capillary one equal to 0.003 to 0.005 mm. Prior to sealing, at least the film surfaces to be welded are activated. A water-repelling layer is applied onto the surfaces of the cavity forming film and/or coating film in the zone of gas exit. Simultaneously with filler curing and film welding the films are trimmed in the contour of the prosthesis. EFFECT: enhanced service life of mammary gland prosthesis resistant to mechanical actions, temperature differentials and ultrasonic radiation, possibility of variation of its weight and shape, assured the required elastic properties of the prosthesis. 23 cl, 5 dwg