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2. 发明申请

WO2003103751A1 NEEDLE-LESS INJECTOR 审中-公开
标题翻译：无针脚注射器
公开(公告)号：WO2003103751A1
公开(公告)日：2003-12-18
申请号：PCT/EP2003/005963
申请日：2003-06-05
申请人： AKZO NOBEL N.V. , MEIJERING, Antonie, Hendrikus , JACOBS, Andreas, Johannes, Maria
发明人： MEIJERING, Antonie, Hendrikus , JACOBS, Andreas, Johannes, Maria
IPC分类号： A61M5/30
CPC分类号： A61M5/30 , A61M5/204
摘要： The invention relates to a needle-less injector having a housing comprising: a chamber defined within said injector for containing liquid to be injected; a liquid outlet for said chamber positioned at the front end of the injector; a dispensing member in contact with the liquid in said chamber and movable in a first direction to reduce the volume of said chamber to cause the liquid contained therein to be expelled through said liquid outlet; drive means for actuating said injector, wherein the dispensing member is a spring-loaded piston movable in said chamber by the spring in the first direction to a preferred position at which the volume of said chamber is at a minimum and the spring is nearly unloaded, and which piston is movable in a second direction opposite to the first direction by actuation of the drive means whilst counteracting a force from the spring and moving the piston to a non-preferred position at which the spring is loaded.
摘要翻译：本发明涉及一种无针注射器，其具有壳体，该壳体包括：限定在所述注射器内的容纳待注射液体的腔室; 位于喷射器前端的用于所述腔室的液体出口; 分配构件，其与所述腔室中的液体接触并可在第一方向上移动，以减小所述腔室的体积，使其中容纳的液体通过所述液体出口排出; 用于致动所述注射器的驱动装置，其中所述分配构件是弹簧加载的活塞，所述弹簧加载的活塞可在所述腔室中通过所述弹簧沿所述第一方向移动到所述腔室的体积处于最小并且所述弹簧几乎被卸载的优选位置，并且通过致动驱动装置，可以在与第一方向相反的第二方向上移动活塞，同时抵消来自弹簧的力并将活塞移动到弹簧被加载的非优选位置。

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