The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2011
Filed:
May. 20, 2008
James C. Smith, Hayward, CA (US);
James C. Smith, Hayward, CA (US);
Other;
Abstract
An improved liquid handling needle device for use with the reconstitution of toxic drugs such as those used in chemotherapy and other applications. When diluent, in this example, is added through a septum into a sealed container, a positive pressure builds up. Aerosols containing the reconstituted drugs can be release through the punctured opening exposing personnel to potential contamination. This improved needle device provides a low-cost aerosol resistant vent channel between the outside diameter of the needle and the inside diameter of the tubular member holding it allowing gas diffusion from inside of the sealed container through the vent channel to the outside of the container when said needle device is inserted into the sealed container. This specifically engineered aerosol resistant vent channel prohibits the flow of the aerosol particles from flowing due to the frictional contact of the aerosol particles with either of the opposing walls forming the vent channel causing any aerosol particles to condense and be redirected back into the liquid receiving sealed container, thus providing sterile air venting for both the injecting and withdrawal of fluids.