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公开(公告)号:US5616128A
公开(公告)日:1997-04-01
申请号:US302847
申请日:1994-11-07
申请人: Philippe Meyer
发明人: Philippe Meyer
CPC分类号: A61M5/2033 , A61M5/24 , A61M2005/206 , A61M2005/2073 , A61M2005/247 , A61M5/2455 , A61M5/315
摘要: A self-injection device has a tubular sleeve which is open at its posterior end and partially closed at its anterior end. An ampule sealed at its posterior end by a piston and at its anterior end by a membrane is axially arranged within the tubular sleeve. An injection needle having a terminal flange at its posterior end and an anterior end for piercing the membrane is axially arranged in the ampule. A tubular actuating cap having a piston rod emanating from the bottom of cap for acting upon the piston is slidably guided on the sleeve. The actuating cap and the piston rod are traversed by a central bore having axially extending grooves. The device also includes a locking pin having radially projecting spring tongues. A first segment of the spring tongue extends in an axial direction on the periphery of the locking pin and a second segment is bent at an obtuse angle, extending obliquely outward in a radial-axial direction through the axially extending grooves in the central bore. When fully inserted into the device, the spring tongues contact the posterior end of the sleeve to prevent unintentional triggering of the injection needle.
摘要翻译: PCT No.PCT / EP93 / 00180 Sec。 371日期:1994年11月7日 102(e)1994年11月7日PCT PCT 1993年1月27日PCT公布。 WO94 / 16752 PCT出版物 日期1994年8月4日自身注射装置具有管状套筒,其后端开放并在其前端部分封闭。 在其后端由活塞密封并且其前端由膜密封的安瓿轴向地布置在管状套筒内。 在其后端具有端子凸缘的注射针和用于刺穿膜的前端轴向地布置在安瓿中。 具有从盖的底部发出作用在活塞上的活塞杆的管状致动帽在套筒上被可滑动地引导。 致动盖和活塞杆由具有轴向延伸槽的中心孔穿过。 该装置还包括具有径向突出的弹簧舌的锁定销。 弹簧舌片的第一部分在锁定销的周边上沿轴向延伸,并且第二部分以钝角弯曲,并通过中心孔中的轴向延伸的凹槽在径向轴向方向上倾斜向外延伸。 当完全插入设备时,弹簧舌接触套筒的后端以防止注射针的无意触发。