A pump assembly for a penile implant is provided having a mechanism which prevents spontaneous inflation of the cylinders implanted within the user. The preventative mechanism uses overpressure generated by the reservoir during unintentional compression to effectively seal the pump assembly from unintended...http://www.google.ca/patents/US6533719?utm_source=gb-gplus-sharePatent US6533719 - Diaphragm based spontaneous inflation inhibitor in a pump for an inflatable prosthesis
