Patent ID: 8882717

Claim:
A multi-site injection system comprising: a rotatable drum having an outer surface with microprotrusions thereon, for penetrating a stratum corneum of a user, said rotatable drum including a sponge-like material; a fixed inner drum containing a supply of medicament, the fixed inner drum having at least one radial opening therein for providing said medicament to the sponge-like material; and a housing for supporting the rotatable drum and the inner drum, said housing having an opening for exposing an arcuate portion of said rotatable drum in order to enable rotation of said rotatable drum by rolling said rotatable drum against a user's skin, the opening being configured such that a majority of the rotatable drum surface remains covered by the housing during the rotation of said rotatable drum; wherein each of said microprotrusions of the rotatable drum protrude beyond an outermost surface of the sponge-like material when the sponge-like material is in an uncompressed state.