VERFAHREN ZUM HERSTELLEN EINER ZAHNÄRZTLICHEN ABSAUGEINRICHTUNG.

摘要

PCT No. PCT/SE92/00292 Sec. 371 Date Nov. 29, 1993 Sec. 102(e) Date Nov. 29, 1993 PCT Filed May 6, 1992 PCT Pub. No. WO92/19437 PCT Pub. Date Nov. 12, 1992.Method of manufacturing a dental aspirator by extruding a continuous tube with a bellows portion. The tube is angled to form a number of folds, each of which consists of two cup-shaped portions having concave surfaces facing each other. One cup-shaped portion is made smaller than the other, allowing them to be snapped together. The bellows are formed from the tube wall by chilled mold chains. At the same time, the tube is profiled to form an end portion at the suction end of the finished aspirator.