- 专利标题: Drive mechanisms suitable for use in drug delivery devices
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申请号: US15787737申请日: 2017-10-19
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公开(公告)号: US10729855B2公开(公告)日: 2020-08-04
- 发明人: Robert Frederick Veasey , Robert Perkins , David Aubrey Plumptre
- 申请人: Sanofi-Aventis Deutschland GmbH
- 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: Fish & Richardson P.C.
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7c31b06f
- 主分类号: A61M5/315
- IPC分类号: A61M5/315 ; A61M5/24 ; A61M5/32 ; A61M5/31
摘要:
A drive mechanism suitable for use in drug delivery devices is disclosed. The drive mechanism may be used with injector-type drug delivery devices, such as those permitting a user to set the delivery dose. The drive mechanism may include a housing, a dose dial sleeve, and a drive sleeve. A clutch is configured to permit rotation of the drive sleeve and the dose dial sleeve with respect to the housing when the dose dial sleeve and drive sleeve are coupled through the clutch. Conversely, when the dose dial sleeve and drive sleeve are in a de-coupled state, rotation of the dose dial sleeve with respect to the housing is permitted and rotation of the drive sleeve with respect to the housing is prevented. In the de-coupled state, axial movement of the drive sleeve transfers force in a longitudinal direction for actuation of a drug delivery device.
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