Patent ID: 7886779

Claim:
An improved liquid handling needle device for use with a sealed container, said needle device comprising: a needle hub having a upper and lower end, with an inner wall and an outer wall, a needle having a upper and lower end, with an inner wall and an outer wall with means for attachment of said outer wall of said upper end of said needle to said inner wall of said needle hub in the vicinity of said lower end of said needle hub and forming a seal therewith, a vent channel between said inner wall of said needle hub and said outer wall of said needle between said seal and said lower end of said needle hub defining a pre-determined sized aerosol resistant vent channel sized between 3 to 100 microns deep whereby prohibiting the flow of aerosol particles due to the frictional contact of said aerosol particles with either the opposing said inner wall of said needle hub or said outer wall of said needle forming said channel causing any aerosols to condense and be redirected back into said sealed container, and said needle device including means for allowing gas diffusion from inside of said sealed container through said vent channel to outside of said sealed container through a pre-determined opening between said vent channel and said outer wall of said needle hub when said needle device is inserted into said sealed container.