There’s some exciting news to report regarding innovations in auto-injector design, especially welcome in the wake of the recent Auvi-Q and Allerject recalls by Sanofi.
US Patent Number 9199037, entitled “Portable drug mixing and delivery system and method“, was just assigned to Windgap Medical, Inc, based in Somerville, MA. In a nutshell, the patent describes a multi-chambered mechanism with separate containers for wet and dry ingredients that mixes the components upon activation, just before the drug is administered.
The idea is to produce an auto-injector where the active medication (in this case, epinephrine) is kept dry until the moment it is needed. A dry form of the medication would conceivably be less prone to degradation due to age and temperature variations.
Here’s the opening statement summarizing the invention:
SUMMARY OF THE INVENTION
It has been recognized that if a drug can be kept out of the liquid phase and stored as a dry medication, the shelf-life, temperature susceptibility may increase allowing the efficacy and potency of the drug to endure longer and through harsher environments.
It has been recognized that a smaller drug delivery device than a conventional epinephrine auto-injector, which could be attached to a key chain and/or easily fit in a person’s pocket, would make the device easier to carry and more likely that the user will have it on their person when needed. An example of such a device package, purely for the purpose of comparison, could be sized similarly to that of a USB “thumb drive” which is designed to be with users on a fairly constant basis. For example, an auto-injector device embodiment has dimensions of 3 inches by 1 inch by ½ inch. However, dimensions of an auto-injector device may vary.
Does this patent really portend an auto-injector with a longer shelf-life, impervious to temperature changes, and the size of a USB thumb-drive that could be carried on a key chain?
We’ve reached out to the CEO of Windgap Medical and hope to have more information soon. Stay tuned!