Medicated module with automatic reservoir engagement
AssigneeSanofi-Aventis Deutschland GmbH
InventorsDavid Richard Mercer, Thomas Urs Thueer, Garen Kouyoumjian, Malcolm Stanley Boyd
Life of this patent
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Abstract
A medicated module for an injection system to co-deliver at least two medicaments is disclosed where a primary delivery device containing a primary medicament accepts a medicated module containing a single dose of a secondary medicament and where both medicaments are delivered through a hollow needle. The medicated module does not require the user to manually engage a reservoir containing the secondary medicament. Instead, a rotating housing automatically activates the reservoir when the needle guard is retracted. The needle guard prevents accidental needle sticks after an injection, and locks after dose delivery.
Claims18
A medicated module attachable to a drug delivery device, comprising,
- a) an outer housing having an inner surface, a proximal end and a distal end, where the proximal end has an upper hub having a connector configured for attachment to a drug delivery device;
- b) a bypass housing within the outer housing;
- c) a reservoir within the bypass housing comprising a single dose of a medicament;
- d) a lower hub holding a lower needle and an upper needle hub holding an upper needle;
- e) a needle guard having an inner wall and is slidably connected to the inner surface of the outer housing to prevent rotation of the needle guard when moved axially;
- and
- f) a rotating housing having an internal surface and an external surface, where the external surface is engaged with the inner wall of the needle guard such that axial movement of the needle guard in the proximal direction causes,
- i. rotation of the rotating housing;
- and
- ii. engagement of the lower needle with the reservoir to establish fluid communication with the medicament.
Dependencies are inferred from the claim text.