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US 12,746,327 B2Granted
Establishing and maintaining vacuum in the reservoir of a drug delivery device
AssigneeInsulet Corporation
InventorsMaureen Mccaffrey, Soroush Kamrava, Ian Mclaughlin
Life of this patent
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Abstract
Disclosed herein are structures for ensuring that the reservoir of drug delivery device is free from any residual air before the device is filled with a liquid drug and put into use. The structures described herein are designed to prevent air from entering the reservoir during the pendency of a shelf life of the drug delivery device and/or to remove any residual air that has entered the reservoir of the drug delivery device prior to it being filled with the liquid drug.
Claims10
A reservoir comprising:
- a rigid shell;
- a lining disposed on an interior surface of the rigid shell;
- an inlet port in fluid communication with a space between the lining and the rigid shell;
- a fill structure in fluid communication with the inlet port;
- a septum;
- a first space adjacent to septum, the first space in fluid communication with an outlet port;
- a second space in fluid communication with the inlet port;
- and
- a barrier film separating the first and second spaces.
6 more elements
Dependencies are inferred from the claim text.