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. 04, 2009
Filed:
Nov. 02, 2001
John G. Wilmot, Mount Airy, MD (US);
John Whittier, Columbia, MD (US);
Robert L. Hill, Abington, MD (US);
Seth P. Cain, Baltimore, MD (US);
C. Michael Mesa, Boyds, MD (US);
John G. Wilmot, Mount Airy, MD (US);
John Whittier, Columbia, MD (US);
Robert L. Hill, Abington, MD (US);
Seth P. Cain, Baltimore, MD (US);
C. Michael Mesa, Boyds, MD (US);
Meridian Medical Technologies, Inc., Columbia, MD (US);
Abstract
In one embodiment, an automatic injector comprises a cartridge adapted to contain a charge of medicament, a seal structure disposed toward a forward end of the cartridge, a plunger normally disposed in a generally rearward end of the cartridge and movable through the cartridge toward a generally forward end thereof in response to an actuating procedure. The movable plunger rearwardly confines the medicament within the cartridge. A needle normally disposed in communication with the medicament container provides a passage in which the medicament is released into an individual's flesh in response to an actuating procedure projecting the needle into the flesh of the individual. The cartridge having an increased friction region so as to slow the motion of the plunger when the forward end of the needle travels through the seal in order to eliminate coring.