Designed for use in developing countries where medical services are limited, this easy to use, single-use injector reinvented the process of inoculation. The user simply compresses the plunger, which in turn compresses a pouch of vaccine and expresses it through a needle. The integrally molded plunger locks shut after one use, safeguarding against reuse.

Primarily used in developing countries, this vaccination device delivers a single dose via an integrally molded plunger, which compresses a pouch of vaccine and expresses it through the needle. As a safeguard against misuse, the plunger locks shut after one use. The device was designed to be inexpensive, easy to use, safe and effective, all of which are critical for the user population.