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Publication Number
US-9820913-B2
Publication Date
2017-11-21
Expiration Date
Abstract
A cartridge for use with a beneficial agent delivery device having a fillable reservoir. The cartridge includes a reconstitution, unit dose package having first and second compartments, and a fitment. The first compartment contains at least a first constintuent of the beneficial agent. The second compartment contains at least a second constituent of the beneficial agent. The fitment is disposed on the package for interfacing the package to the fillable reservoir.
Core Innovation
The invention relates to a cartridge for use with a beneficial agent delivery device having a fillable reservoir. The cartridge includes a package with a first compartment containing at least a first constituent of the beneficial agent, where at least a portion of the first compartment is formed by a flexible wall preformed in the shape of a tube. The package further includes a fitment disposed on the package to interface the package to the fillable reservoir of the delivery device, and a fluid passageway between the package and the delivery device.
A static mixer is disposed in the fluid passageway to mix fluids delivered from the cartridge. The invention also defines cartridge structures in which compartments are separated and then allowed to communicate upon user activation, using rupturable barriers and sealable protective features that reduce contamination risk during handling and mixing.
The described packaging and barrier concepts include peelable high barrier layers and protective overwrap concepts such as scavenger film and desiccant, together with configurations intended to support aseptic reconstitution or mixing. The cartridge concepts further include additional fluid-handling structures such as sealable paths to prevent backflow, and passages or chambers configured to manage gas evacuation and reduce adverse flow behavior during filling and delivery, including anti-jetting or gliding flow concepts.
Claims Coverage
Two independent claims are directed to cartridge structures for a beneficial agent delivery device with a fillable reservoir. The inventive features across the independent claims include a flexible tube-shaped wall forming a first compartment, a fitment interface to the reservoir, and a static mixer disposed in a fluid passageway, with an additional embodiment requiring a second compartment separated by a rupturable barrier.
Flexible tube-shaped flexible wall first compartment
At least a portion of the first compartment is formed by a flexible wall preformed in the shape of a tube.
Reservoir-interfacing fitment
A fitment disposed on said package configured to interface said package to the fillable reservoir of the delivery device.
Static mixer in fluid passageway
A static mixer disposed in the fluid passageway.
Second compartment separated by rupturable barrier
A second compartment; wherein said first compartment is segregated from said second compartment by a rupturable barrier; and a fluid passageway between said first compartment and said second compartment.
Overall, the claims cover a cartridge package that uses a flexible tube-shaped wall to form a first compartment, interfaces to a fillable reservoir through a fitment, and uses a static mixer within a defined fluid passageway, with an additional embodiment requiring a second compartment separated by a rupturable barrier.
Stated Advantages
Documented Applications
No documented applications found
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