公开(公告)号：US20160158462A1

公开(公告)日：2016-06-09

申请号：US14962508

申请日：2015-12-08

申请人： Becton, Dickinson and Company

发明人： Ryan SCHOONMAKER ,  Michel BRUEHWILER ,  Ira SPOOL ,  Melissa ROSEN

IPC分类号： A61M5/48 ,  A61M5/20 ,  A61M5/315 ,  A61M5/142

CPC分类号： A61M5/48 ,  A61M5/14216 ,  A61M5/204 ,  A61M5/286 ,  A61M5/3146 ,  A61M5/31511 ,  A61M5/31553 ,  A61M5/3158 ,  A61M2005/3128 ,  A61M2005/31518 ,  A61M2005/3152

摘要： A dual-chambered drug delivery device, comprising a cartridge having a first chamber for storing a medicament, a second chamber in fluid communication with said first chamber, a dose setting member for setting a medicament dose to be injected at an injection site, a piston disposed in said second chamber, an upward stroke of said piston drawing a portion of the medicament dose into said second chamber and a downward stroke of said piston expelling the portion of the medicament dose, a needle communicating with said second chamber for sequentially injecting portions of the medicament dose into the injection site, a drive screw movably connected to said dose setting member such that rotation of said dose setting member moves said drive screw upwardly, and a rack movably connected to said drive screw such that downward movement of said drive screw during the medicament dose injection rotates said rack.

摘要翻译： 一种双腔药物输送装置，包括具有用于储存药物的第一腔室和与所述第一腔室流体连通的第二腔室的药筒，用于设定在注射部位注射的药物剂量的剂量设定部件，活塞 设置在所述第二室中，所述活塞的向上冲程将药物剂量的一部分吸入所述第二腔室中，并且所述活塞的向下冲程排出药物剂量的一部分，与所述第二腔室连通的针，以顺序地将部分 药物剂量进入注射部位，驱动螺杆可移动地连接到所述剂量设定部件，使得所述剂量设定部件的旋转向上移动所述驱动螺杆;以及齿条，其可移动地连接到所述驱动螺杆，使得所述驱动螺杆在 药物剂量注射使所述齿条旋转。