| 主权项 |
1. A medicament injector device comprising
a syringe assembly comprising a needle and adapted to contain a medicament to be injected, said assembly being coaxially and slidably arranged in an outer housing extending along a longitudinal axis, arming means for arming the medicament injector device from a rest position to a first dose injecting armed position and to a second dose injecting armed position, said arming means being placed at one end of said outer housing, first elastic means between said syringe assembly and said arming means, said first elastic means being in a compressed state when the medicament injector device is in the rest position, device drive means for controlling the sliding of said syringe assembly from said armed positions to inject the the needle in an injection site and deliver the first dose and, if necessary, deliver the second dose at a subsequent set time, wherein the syringe assembly comprises slide means engaged in stepped guide means, said guide means being inclined, but not incident, relative to a direction of the longitudinal axis and axially integral with said outer housing, said slide means and said guide means being pivotable relative to each other about the longitudinal axis, said device drive means being capable to slide axially as a result of separate and successive pressures against said injection site to cause a first relative displacement of said slide means from said first dose injecting armed position to a position of alignment to said guide means, wherein said slide means are freely moveable along the guide means up to a first stop position, and a second relative displacement of said slide means from said second dose injecting armed position to a position of alignment to said guide means, and wherein said slide means are freely moveable along the guide means up to a second stop position. |
