公开(公告)号：US4589870A

公开(公告)日：1986-05-20

申请号：US581801

申请日：1984-02-21

申请人： Paul S. Citrin ,  Nelson F. Murcko

发明人： Paul S. Citrin ,  Nelson F. Murcko

IPC分类号： G05G7/00 ,  B05C11/10 ,  F04B9/14 ,  A61M5/315

CPC分类号： B05C17/0126 ,  B05C11/10

摘要： A manually operated actuator is described with which small incremental motions of a rod are obtained to advance a piston of a prefilled syringe. The device employs a reciprocally actuated drive element with a hole through which the rod passes freely when the drive element is in a release position. When the drive element is pivoted to a rod engaging position a pair of edges formed by the hole engage the rod and advance it an increment depending upon the amount of linear movement of the drive element. A back-up inhibitor is employed to prevent the rod from moving back when the drive element is returned to a release position. The back-up inhibitor is syringe responsive by employing a mechanism which causes engagement of the rod by the inhibitor when a syringe is attached to the actuator housing. A syringe with specially adapted flanges is described for use with the actuator.

摘要翻译： 描述了一种手动操作的致动器，其中获得杆的小的增量运动以推动预填充注射器的活塞。 该装置采用具有孔的往复致动的驱动元件，当驱动元件处于释放位置时，杆通过该孔自由通过。 当驱动元件枢转到杆接合位置时，由孔形成的一对边缘与杆接合并且根据驱动元件的线性运动量将其增加。 当驱动元件返回到释放位置时，使用备用抑制器来防止杆返回。 备用抑制剂是通过使用当将注射器附接到致动器壳体时通过抑制剂使杆接合的机构的注射器响应。 描述了具有特殊适配法兰的注射器，用于执行机构。