DEVICE FOR PRODUCING DENTAL PROSTHESES Russian patent published in 2001 - IPC

FIELD: medical engineering. SUBSTANCE: device has sectional dental flask composed of two halves for plaster and wax model to find place thereon. The flask has an inlet opening for plastic and another one for discharging air and excessive quantities of plastic, clasp for joining flask halves, cylindrical chamber for loading plastic, rubber piston mounted in the chamber, screw-type mechanism for moving the rubber piston. The flask is mounted with its plane vertical, inlet opening for loading plastic, is in the flask junction plane in its upper part. The outlet openings for discharging air and excessive quantities of plastic are in the lower part and closed with screws. The cylindrical chamber has upper cover having screw-type mechanism screw positioned in threaded opening and lower flange for mounting the chamber on the flask using rubber sealing ring coaxially with the inlet opening for loading plastic. The lower flange is set in upper hold-down plate through a through opening and is fixed with threaded hold-down ring. The upper and lower hold-down plates, having the flask between them, are connected with fastening bolts. EFFECT: high quality of dental prostheses; improved production method. 3 cl, 3 dwg