发明授权
- 专利标题： Drive mechanism for a drug delivery device
- 专利标题（中）： 药物输送装置的驱动机构
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申请号： US13497769申请日： 2010-09-29
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公开(公告)号： US08939945B2公开(公告)日： 2015-01-27
- 发明人: Robert Veasey , David Plumptre , Christopher Jones , Garen Kouyoumjian , Catherine Anne MacDonald
- 申请人： Robert Veasey , David Plumptre , Christopher Jones , Garen Kouyoumjian , Catherine Anne MacDonald
- 申请人地址： DE Frankfurt am Main
- 专利权人： Sanofi-Aventis Deutschland GmbH
- 当前专利权人： Sanofi-Aventis Deutschland GmbH
- 当前专利权人地址： DE Frankfurt am Main
- 代理机构： McDonnell Boehnen Hulbert & Berghoff LLP
- 优先权： EP09171765 20090930
- 国际申请： PCT/EP2010/064425 WO 20100929
- 国际公布： WO2011/039232 WO 20110407
- 主分类号： A61M5/00
- IPC分类号： A61M5/00 ; A61M5/315 ; A61M5/24
摘要：
A lead screw (5) with a screw thread (6) is arranged in a body (1) along an axis (4) and coupled to a lead screw nut (7) with a drive feature (8), so that the lead screw is helically rotatable in the lead screw nut. The lead screw and the lead screw nut are provided with stop features (9) interfering with a rotation of the lead screw in the lead screw nut when a force is applied to the lead screw in an axial direction. The lead screw nut has a surface area facing a guide feature (10) of the body. This surface area has a slope (12) varying around the axis. The assembly interacts such that the lead screw nut rotates in one rotational direction when a force is applied to the lead screw in the axial direction.
公开/授权文献
- US20120296287A1 Drive Mechanism for a Drug Delivery Device 公开/授权日：2012-11-22
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