PROCESS AND APPARATUS FOR MANUFACTURING DISPOSABLE CANNULAE

摘要

1. A process for manufacturing disposable cannulae (2) comprising : melting a hub (6) of plastic against a metallic cannula tube (4) by inserting the cannula tube into the hub, clamping the cannula tube between a counter electrode (98) supporting the inner end (24) of the cannula tube and a clamping jaw (60) engaging at the free end (22) of the cannula tube as well as intermittently applying a resitance heating voltage between the counter electrode and the free end of the cannula tube protruding from the hub and simultaneously moving the clamping jaw and the counter electrode towards each other, characterized in that the resistance heating voltage is applied to the free end (22) of the cannula tube (4) between the hub (6) and the clamping jaw (60).