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    • 5. 发明授权
    • Needless syringe provided with a piezoelectric triggering system
    • 无需注射器配有压电触发系统
    • US06610028B1
    • 2003-08-26
    • US10018356
    • 2002-02-04
    • Patrick AlexandreBernard BrouquieresClaude MiklerLouis Simonet
    • Patrick AlexandreBernard BrouquieresClaude MiklerLouis Simonet
    • A61M530
    • A61M5/30A61M5/2046A61M2005/2013
    • The invention concerns the technical field of needleless syringes for injecting an active principle through the skin. More particularly, the invention concerns a needleless syringe provided with a piezoelectric crystal and a triggering device comprising a triggering member and impacting means and, on a triggering device particularly adapted to needleless syringes. The invention is mainly characterized in that the impacting means comprises a latch maintained under elastic stress by being blocked against a stop element and the triggering member is capable of moving the latch to release it, so that it is urged to strike the piezoelectric crystal. Then, the crystal produces an electric arc designed to initiate a pyrotechnic charge whereof the combustion gases will help to expel the active principle contained in the syringe.
    • 本发明涉及用于通过皮肤注射活性成分的无针注射器的技术领域。 更具体地说,本发明涉及一种设置有压电晶体的无针注射器和包括触发元件和冲击装置的触发装置,以及特别适用于无针注射器的触发装置。 本发明的主要特征在于,冲击装置包括通过阻挡止动元件而保持在弹性应力下的闩锁,并且触发构件能够移动闩锁以将其释放,从而被迫使其撞击压电晶体。 然后,晶体产生电弧,用于启动烟火充电,其中燃烧气体将有助于排出包含在注射器中的活性原理。