公开(公告)号：US5746714A

公开(公告)日：1998-05-05

申请号：US483192

申请日：1995-06-07

申请人： Timothy J. Salo ,  Sergio Landau ,  Glenn D. Austin ,  T. Patrick Lennon

发明人： Timothy J. Salo ,  Sergio Landau ,  Glenn D. Austin ,  T. Patrick Lennon

IPC分类号： A61M5/20 ,  A61M5/30

CPC分类号： A61M5/30 ,  A61M5/2053

摘要： A needleless, low pressure, air powered medicine injector with a quick disconnect medicine delivery assembly removably connected to the injector housing. Low pressure air drives a biased piston through a discharge stroke, beginning from the retracted position into the medicine chamber, thereby forcing medicine through a one-piece nozzle. A removable chamber filling mechanism connected to the housing is coupled to the medicine chamber through fill ports, such that the medicine chamber is filled utilizing a positive pressure medicine distributor. A movable spacer collar positioned in front of the nozzle provides an air gap between a patient's skin and the one-piece nozzle. A safety interlock coupled to an activating mechanism and the chamber filling mechanism prevents unwanted discharge of the injection.

摘要翻译： 一种无针，低压，空气动力药物注射器，其具有可拆卸地连接到注射器壳体的快速断开药物输送组件。 低压空气通过排出行程驱动偏压活塞，从缩回位置开始进入药物室，从而通过一体式喷嘴迫使药物。 连接到壳体的可拆卸的腔室填充机构通过填充口与药剂腔联接，从而使用正压药物分配器来填充药剂室。 位于喷嘴前方的可移动间隔套提供了患者皮肤和单件式喷嘴之间的气隙。 联接到激活机构和腔室填充机构的安全联锁件防止喷射的不期望的排出。