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. 16, 2019
Filed:
Dec. 08, 2015
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Ryan Schoonmaker, Oceanside, CA (US);
Michel Bruehwiler, Newton, MA (US);
Ira Spool, Newton, MA (US);
Melissa Rosen, Lynn, MA (US);
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
A dual-chambered drug delivery device, comprising a cartridge having a first chamber for storing a medicament, a second chamber in fluid communication with said first chamber, a dose setting member for setting a medicament dose to be injected at an injection site, a piston disposed in said second chamber, an upward stroke of said piston drawing a portion of the medicament dose into said second chamber and a downward stroke of said piston expelling the portion of the medicament dose, a needle communicating with said second chamber for sequentially injecting portions of the medicament dose into the injection site, a drive screw movably connected to said dose setting member such that rotation of said dose setting member moves said drive screw upwardly, and a rack movably connected to said drive screw such that downward movement of said drive screw during the medicament dose injection rotates said rack.