Assembly of hypodermic needles and trocars in syringes for injections. (Machine-translation by Google Translate, not legally binding)

摘要

Arrangement for the assembly of hypodermic needles and trocars in injection syringes, consisting essentially of threading the needle tube to the cone or sleeve thereof, practicing in both parts an appropriate thread, and also in constructing the element male of the conical coupling, provided with one or more threads preferably on its base or neck, and in an analogous way, the female element, also provided with a corresponding thread, so that the coupling is verified, not only by the adjustment of the conical parts, but also by the engagement of the threaded parts, by slightly turning one of the elements relative to the other. (Machine-translation by Google Translate, not legally binding)