Patent ID: 7569035
Filing Date: 2009-08-04
Classification: A61M

Abstract:
1. An automatic injector comprising: a housing having a rearward end and a forward end; a seal structure disposed toward the forward end of said housing; a cartridge contained within said housing; a charge of medicament contained in said cartridge; a plunger normally disposed in a generally rearward end of said cartridge and movable through said cartridge toward a generally forward end thereof in response to an actuating procedure, said movable plunger rearwardly confining said medicament within said cartridge; a needle normally disposed within said housing, said needle being projectable from the forward end of said housing through said seal structure, said needle being communicable with said medicament so that movement of said plunger through said cartridge forces said medicament through said needle and into the flesh of an individual in response to said predetermined actuating procedure, said needle comprising: a releasable energy source releasable in response to said predetermined actuating procedure to project said needle from the forward end of the housing and slidingly drive said plunger through said cartridge in sealed relation to expel said medicament through said needle and into the flesh of an individual.