In an elongated casing, an active agent container connected to an injection needle can be shifted axially by a spring force. Auto-injectors which are sold or distributed filled and with the springs tensed have to be provided with a needle protecting cap to ensure the sterility of the injection needle....http://www.google.es/patents/US20050203466?utm_source=gb-gplus-sharePatente US20050203466 - Auto-injector with active agent container latching
Auto-injector with active agent container latching
Número de solicitud: 11/016,539 Número de publicación: US 2005/0203466 A1 Fecha de presentación: 17 Dic 2004 Patente emitida: US7357790 ( Fecha de emisión 15 Abr 2008)