Patent ID: 8167863
Filing Date: 2012-05-01
Classification: A61J

Abstract:
1. A vented vial adapter for retaining aerosols when accessing a vial having a pierceable seal located over an opening of the vial, the adapter comprising: a cannula having a medicament lumen and a vent lumen, the cannula having a relatively sharp tip to pierce the seal of the vial; a body portion having: a first filter device disposed between the vent lumen of the cannula and the vent port, the first filter device comprising pores having a diameter in the range of 0.2-3.0 microns and configured to allow passage of liquid dispersed in gas while blocking non-dispersed liquid; a second filter device disposed between the first filter device and the vent port, the second filter device configured to absorb liquid dispersed in gas; and a third filter device disposed between the second filter device and the vent port, the third filter device configured to inhibit the passage of bacteria, a pore size of the third filter device being smaller than 0.2 microns.