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:
Aug. 27, 2002
Filed:
May. 31, 2000
Richard W. Grabenkort, Barrington, IL (US);
Randall M. Farmer, Mundelein, IL (US);
Abbott Laboratories, Abbott Park, IL (US);
Abstract
A syringe system requires a decreased vertical travel for sealing during a lyophilization process and therefore provides for increased utilization of space in a lyophilization chamber. The syringe system is provided with a sterility maintenance sleeve including a stopper affixed thereto for sealingly engaging the syringe barrel to define a drug chamber. The sterility maintenance sleeve is provided with a venting passage to permit egress of vapor from the drug chamber during lyophilization. A plug cap cooperating with the sterility maintenance sleeve includes an occluding tip which is adapted to occupy the venting passage and seal the drug chamber after lyophilization. The plug cap is provided with a support structure in the form of flexible fins for supporting the plug cap in a venting position in which the occluding tip is removed from the venting passage to permit egress of drug solution vapor from the drug chamber during lyophilization. After lyophilization, the plug cap is moved into a sealing position in which the drug chamber is sealed against contamination.