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:
Apr. 08, 1986
Filed:
Feb. 29, 1984
William A Gettig, Millheim, PA (US);
Gettig Pharmaceutical Instrument Co., Spring Mills, PA (US);
Abstract
A multi-cartridge syringe assembly includes one cartridge containing a diluent and insertable within another cartridge containing dry medication. The nose of the diluent cartridge supports a cannula and is surrounded by a lock head member. In an initial mode, the exposed cannula is surrounded by a resilient cover. A retaining element extending rearwardly from a piston in the medication cartridge includes lock elements sequentially engageable with first and second annular devices on the lock head member as the two cartridges are axially displaced towards each other. In a first position the two cartridges are locked together without any axial displacement between the cannula and its cover while in a second position the cover is forced rearwardly of the cannula as the point of the cannula pierces the cover as well as the piston in the medication cartridge.