A combination retractable needle cannula and cannula lock which is to be interfaced with a prefilled medication carpule at the cylinder of a conventional hypodermic syringe. The cannula lock includes a clamp having a pair of oppositely disposed jaws which are normally separated from one another so that...http://www.google.fr/patents/US4935014?utm_source=gb-gplus-shareBrevet US4935014 - Combination retractable needle cannual and cannual lock for a medication carpule
Combination retractable needle cannual and cannual lock for a medication carpule
