| 发明名称 |
DRIVE UNIT FOR A DRUG DELIVERY DEVICE |
| 摘要 |
Described is a drive unit (1) for a drug delivery device comprising a carrier (3), a plunger (4) arranged within the carrier (3) and slidable in a direction of a longitudinal axis (A), a drive spring (5) arranged for biasing the plunger (4) in a distal direction (D) relative the carrier (3), and a drive force adaption mechanism (22) for modifying a force exerted by the drive spring (5) on the plunger (4). |
| 申请公布号 |
US2016175526(A1) |
申请公布日期 |
2016.06.23 |
| 申请号 |
US201414906935 |
申请日期 |
2014.07.17 |
| 申请人 |
SANOFI-AVENTIS DEUTSCHLAND GMBH |
发明人 |
Dasbach Uwe |
| 分类号 |
A61M5/20;A61M5/315 |
主分类号 |
A61M5/20 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Drive unit (1) for a drug delivery device, comprising:
a carrier (3), a plunger (4) arranged within the carrier (3) and slidable in a direction of a longitudinal axis (A), a drive spring (5) in the shape of a compression spring arranged for biasing the plunger (4) in a distal direction (D) relative to the carrier (3), a drive force adaption mechanism (22) for modifying a force exerted by the drive spring (5) on the plunger (4), wherein the drive force adaption mechanism (22) is adapted to alter an initial length of the drive spring (5) and/or wherein the drive force adaption mechanism (22) is adapted to introduce a friction force opposing a force of the drive spring (5). |
| 地址 |
Frankfurt am Main DE |
