The Epinephrine Key injector is also much more user friendly than pen shaped auto-injectors. Once the cap is removed, the safety buttons can be depressed and the device can be activated by compressing the tip against the leg in one fluid motion. This design significantly reduces the risk of improper injections into the thumb which can cause further problems in an already stressful situation.
The Epi Key is not yet available, but a fully functioning prototype has been developed and is in the testing phases. TCB Medical Devices expects fast-track approval through the FDA, meaning the Epinephrine Key could be on the market and available to allergy patients in as little as four months. Read more about it here.