发明名称 |
MULTI-STROKE DELIVERY PUMPING MECHANISM FOR A DRUG DELIVERY DEVICE FOR HIGH PRESSURE INJECTIONS |
摘要 |
A dual-chambered drug delivery device (201) includes a cartridge (211) having a first chamber (212) for storing a medicament and a second chamber (211) in fluid communication with the first chamber (212). A dose setting member (241) is used to set a medicament dose to be injected at an injection site. A piston (281) is disposed in the second chamber (221). An upward stroke of the piston (281) draw a portion of the medicament dose into the second chamber (221) and a downward stroke of the piston (281) expels the portion of the medicament dose. A needle (205) communicates with the second chamber (221) for sequentially injecting the portions of the medicament dose into the injection site. |
申请公布号 |
EP2355869(A4) |
申请公布日期 |
2015.07.08 |
申请号 |
EP20090836479 |
申请日期 |
2009.12.08 |
申请人 |
BECTON DICKINSON AND COMPANY |
发明人 |
SCHOONMAKER, RYAN;BRUEHWILER, MICHEL;SPOOL, IRA;ROSEN, MELISSA |
分类号 |
A61M5/28;A61M5/142;A61M5/20;A61M5/31;A61M5/315;A61M5/48 |
主分类号 |
A61M5/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|