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:
Dec. 04, 2012
Filed:
Sep. 18, 2009
Richard A. Cronenberg, Mahwah, NJ (US);
Asif Fayyaz, Paramus, NJ (US);
Atul Patel, Wilkes-Barre, PA (US);
Lionel Vedrine, Palo Alto, CA (US);
Richard A. Cronenberg, Mahwah, NJ (US);
Asif Fayyaz, Paramus, NJ (US);
Atul Patel, Wilkes-Barre, PA (US);
Lionel Vedrine, Palo Alto, CA (US);
Becton, Dickinson and Company, Franklin Lakes, NJ (US);
Abstract
A medical injector is provided herein which includes first and second body portions rotatably coupled together; a displaceable plunger disposed in at least one of the first and second body portions; a spring disposed to advance the plunger; and, a releasable retainer for retaining the plunger in a first portion against force of the spring. The releasable retainer releases the plunger upon a predetermined extent of relative rotation between the first and second body portions, thus allowing the spring to advance the plunger. Advantageously, the subject invention provides a medical injector having an automated plunger drive which is triggered upon rotation of injector body portions, thereby minimizing premature or failed activations.