| 发明名称 | Drive mechanism for a drug delivery device and drug delivery device | ||
| 摘要 | A drive sleeve is arranged within a body and coupled with a dose member by means of threads. Stop means inhibit a shift of the drive sleeve while allowing a rotation of the drive sleeve. A clutch is provided to lock the dose member rotationally to the body in a releasable manner when a force is exerted on the dose member in the distal direction, the clutch permitting a movement of the dose member in the distal direction with respect to the body. | ||
| 申请公布号 | US9421335(B2) | 申请公布日期 | 2016.08.23 |
| 申请号 | US201113883394 | 申请日期 | 2011.11.11 |
| 申请人 | SANOFI-AVENTIS DEUTSCHLAND GMBH | 发明人 | Nzike Philippe;Raab Steffen |
| 分类号 | A61M5/315 | 主分类号 | A61M5/315 |
| 代理机构 | McDonnell Boehnen Hulbert & Berghoff LLP | 代理人 | McDonnell Boehnen Hulbert & Berghoff LLP |
| 主权项 | 1. A drive mechanism for a drug delivery device, comprising: a body having a proximal end and a distal end, a dose member having a screw thread, a drive sleeve arranged within the body and being rotatable with respect to the body, the drive sleeve having a screw thread engaging the screw thread of the dose member, stop means comprising webs or interfaces of the body that restrict or inhibit a movement of the drive sleeve in the proximal direction and in the distal direction with respect to the body, and a clutch being provided to lock the dose member rotationally to the body in a releasable manner when a force is exerted on the dose member in the distal direction, the clutch permitting a movement of the dose member in the distal direction and a rotation of the drive sleeve with respect to the body. | ||
| 地址 | Frankfurt am Main DE | ||