Patent ID: 7757370
Filing Date: 2010-07-20
Classification: A61M,Y10T

Abstract:
1. A method of forming a needle and hub assembly for automatic injectors, the method comprising: forming a first hub portion having a forward section and a flange section, the forward section defining a needle-receiving channel; inserting a needle in the needle-receiving channel; forming a cap having an engaging portion and a needle supporting portion, the engaging portion configured to engage a medicament cartridge of an automatic injector, the needle-supporting portion having a wall that includes an opening therein, the wall defining interior and exterior surfaces opposite each other; arranging the cap over the needle and the first hub portion such that: forming a second hub portion over the needle and first hub portion, the second hub portion having a forward tapering section and a plurality of radially-extending structures, the forward tapering section defining a needle-receiving channel in alignment with the needle-receiving channel of the first hub portion, the forward tapering section of the second hub portion engaging the forward section of the first hub portion, and the radially-extending structures abutting the exterior surface of the wall of the cap and extending outwardly across the wall to form a contiguous structure of the second hub portion that extends along the interior and exterior surfaces of the wall, the wall, and the first hub portion.