This implantation device includes: a set of separable implants, a guide member defining a passage for guiding the set of implants in translation towards the outlet orifice, a transmission member for transmitting a pushing force in order to move the set of implants towards an outlet, the transmission member having several successive projections, and a pushing member to allow the practitioner to generate the pushing force. The pushing member includes a bearing part configured to bear against several of the projections during successive movements of the pushing member, the bearing part having in succession a bearing position and a clearing position, and a unidirectional stop element connected to the guide member and configured to have in succession i) a configuration of clearance by a projection and ii) a stop configuration so as to immobilize the transmission member in the inverse direction of the translation towards the outlet.
