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Auto-Injector Device with a Medicated Module

  • US 20130245604A1
  • Filed: 11/28/2011
  • Published: 09/19/2013
  • Est. Priority Date: 11/29/2010
  • Status: Abandoned Application
First Claim
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1. A drug delivery system for delivering at least three medicaments, the drug delivery system comprising:

  • (a) an auto-injector device configured to deliver at least one dose of at least a first and a second medicament, the auto-injector device comprising;

    (i) a control unit,(ii) an electro-mechanical drive unit operably coupled to the control unit, the electro-mechanical drive unit also coupled to a first reservoir and a second reservoir containing the first and second medicaments respectively(iii) an operator interface in communication with the control unit, and(iv) an interface hub configured for fluid communication with the first and second reservoirs,wherein activation of the operator interface sets a dose of the first medicament and based on the set dose of the first medicament, the control unit determines a dose of the second medicament based at least in part on a therapeutic dose profile; and

    (b) a medicated module attached to the interface hub of the auto-injector device, the medicated module comprising;

    (i) an outer housing having an inner surface, a proximal end, and a distal end, wherein the proximal end includes an upper hub holding a first double-ended needle, and wherein the proximal end is connected to the interface hub of the auto-injector drug delivery device,(ii) a bypass housing having an outer surface and slidably engaged with an upper radial stand off on the inner surface of the outer housing,(iii) a reservoir within the bypass housing containing a single dose of a third medicament,(iv) a guard having an internal proximal face and a drive tooth on an inner surface, where the drive tooth is slidably engaged with a track on the outer surface of the bypass housing,(v) a lower hub slidably engaged with the outer surface of the bypass housing and slidably engaged with the inner surface of the guard, wherein the lower hub holds a second double-ended needle, and(vi) a biasing member engaged between the internal proximal face of the guard and the lower hub,wherein the guard is movable between a distal and a proximal position, and wherein movement of the guard in proximal direction causes the bypass housing to move in a proximal direction and causes the reservoir to come into fluid communication with the first and second double ended needles.

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