CA2816806A1 — Needle cannula containing medicament

USPTO Abstract

A method and system of delivering a first medicament to a first injection depth and a second medicament to a second injection depth using a single dispense interface. A medicated module (202, 500) is attachable to a drug delivery device (100), where the drug delivery device includes a drug reservoir (230) holding a first medicament (232). The medicated module includes a needle cannula (206, 400, 502) having a sidewall (314, 416), at least one micro-hole (308, 310, 312, 406, 410, 412, 414, 504, 506) in the sidewall of the needle cannula, and a flexible membrane (316) sealably fixed to an inner surface (318) of the needle cannula. The flexible membrane holds a second medicament (320, 420) between the flexible membrane and a portion of the sidewall having the at least one micro-hole. The first and second medicaments can be delivered to two, axially separate injection depths.