Patent ID: 9402963
Filing Date: 2016-08-02
CPC Classification: A61M

Claim Text:
1. A medicated module attachable to a drug delivery device, the drug delivery device comprising a primary reservoir of a first medicament and the medicated module comprising a secondary reservoir comprising a dose of a second medicament, wherein the medicated module comprises: a first housing and a second housing, the second housing having an attachment means to attach the medicated module to the drug delivery device, wherein the secondary reservoir is arranged in the first housing; a distal needle cannula mounted in the first housing, wherein a distal end of the distal needle cannula is configured to be applied to an injection site; a proximal needle cannula mounted in the second housing, wherein a proximal end of the proximal needle cannula is configured for piercing the primary reservoir, wherein the distal and proximal needle cannulae are positioned to establish fluid communication with the secondary reservoir and wherein the secondary reservoir is arranged in an axial direction between the distal needle cannula and the proximal needle cannula, wherein the first housing is removably connected to the second housing, and wherein a distal end of the proximal needle cannula is configured for being applied to the injection site when the first housing is removed from the second housing; a first needle guard assembly operably connected to the first housing; and a second needle guard assembly operably connected to the second housing, the respective needle guard assembly being adapted and arranged to provide protection of the distal needle cannula and the proximal needle cannula, wherein each needle guard assembly is configured to move in an axial direction when the respective needle guard assembly is applied to the injection site, wherein the secondary reservoir and the proximal needle cannula form a hydraulic lock to prevent fluid flow when the first needle guard assembly is withdrawn from the injection site, and wherein a distal end of the proximal needle cannula is caused to lodge within an upper septum of the secondary reservoir such that the secondary reservoir and the proximal needle cannula form a hydraulic lock to prevent fluid flow.