An improved arterial syringe safety vent is dually optimized for needle safety and arterial blood degassing efficiency. The safety vent of the invention includes a housing, a needle lock to capture a needle, and a venting portion comprising a hydrophilic filter. The needle lock of the invention is adapted...http://www.google.fr/patents/US7322941?utm_source=gb-gplus-shareBrevet US7322941 - Arterial syringe safety vent
