Patent ID: 7559920
Filing Date: 2009-07-14
Classification: A61J,A61M

Abstract:
1. An injection device comprising an injection nozzle and a reservoir intended to hold captive an active substance that is to be injected through the injection nozzle, an upstream piston plug and a downstream piston plug fitted within the reservoir, said injection nozzle comprising a flat surface forming a support plane for said reservoir, a blind hole formed proximate a center of said flat surface, said blind hole sized to receive said downstream piston plug upon injection, two or more peripheral channels defined within said injection nozzle proximate a periphery of the blind hole, said peripheral channels configured to deliver the active substance upon injection, said reservoir being fixed to said nozzle with the aid of connecting means, said reservoir including a collar which is situated at one of the ends of said reservoir, said collar extending in an outwardly direction from a surface of said reservoir, the connecting means comprising at least three bosses which are integral with the nozzle, each of said bosses being arranged on one plane that extends parallel to said collar in said outwardly direction, each of said bosses comprising an inclined part that is inclined with respect to the one plane, each inclined part being terminated by a flange, said flange cooperating with said collar, said collar serving as an anti-return element for the reservoir when the latter is connected to the nozzle, and said device being characterized in that the bosses are connected to one another by connecting branches.