A needle or puncture guard that has inherent probe directing features for use in an in-line configured shunt valve is provided. The guard comprises a base member configured for mounting within the domed reservoir of the shunt valve, and a guide wall seated on the base member. The guide wall is defined...http://www.google.fr/patents/US7192413?utm_source=gb-gplus-shareBrevet US7192413 - Needle guard having inherent probe directing features
Needle guard having inherent probe directing features