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:
May. 19, 1998
Filed:
Apr. 08, 1996
Jean Pierre Grimard, Vif, FR;
Becton Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
A syringe assembly includes a substantially cylindrical syringe barrel and a plunger stopper. Distal portions on the plunger stopper are configured to permit outflow of vapor from the syringe barrel during a lyophilization process. Proximal portions of the plunger stopper are dimensioned to engage the syringe barrel in sliding fluid-tight engagement. Liquid medication in the chamber is lyophilized and a vacuum is applied to the syringe barrel after lyophilization. The plunger stopper then is urged distally into sealing engagement with the syringe barrel. A plunger rod can be engaged with the plunger stopper. The tip cap is then removed and a diluent is drawn into the chamber by moving the plunger rod and the plunger stopper in a proximal direction. The syringe assembly then can be used in the standard manner.