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    • 6. 发明申请
    • INJECTION DEVICE
    • US20220280727A1
    • 2022-09-08
    • US17608869
    • 2020-05-21
    • Owen Mumford Limited
    • Toby COWE
    • A61M5/315A61M5/20
    • An injection device for delivering a dose from a cartridge or syringe. The injection device comprises a housing, a drive shaft, a drive spring for urging the drive shaft to rotate relative to the housing, and a plunger coupled to the drive shaft such that rotation of the drive shaft relative to the housing causes the plunger to move axially relative to the housing. The device further comprises a dose setting member moveable relative to the drive member between a first position in which the dose setting member is rotatable relative to the housing for setting a dose and a second position in which the dose setting member is rotationally fixed relative to the housing for delivering a dose, and a stop member. The stop member is engaged between the dose setting member and the drive shaft such that relative rotation between the dose setting member and the drive shaft during dose setting causes the stop member to travel relative to a first stop surface, and rotation of the dose setting member together with the drive shaft during dose delivery does not cause the first stop member to travel relative to the first stop surface. If the stop member abuts the first stop surface during relative rotation between the dose setting member and the drive shaft, continued travel of the stop member and hence continued relative rotation between the dose setting member and the drive shaft is prevented.
    • 9. 发明申请
    • DOSING MECHANISM
    • 计量机制
    • US20150314072A1
    • 2015-11-05
    • US14761997
    • 2014-01-21
    • OWEN MUMFORD LIMITED
    • Toby COWE
    • A61M5/315A61M5/24A61M5/145
    • A61M5/3153A61M5/1452A61M5/204A61M5/24A61M5/31501A61M5/31535A61M5/31541A61M5/31555A61M5/31566A61M5/3158
    • A dosing mechanism (6) for delivering a plurality of single metered doses includes a dose delivery mechanism; and a non-return mechanism (10), arranged to prevent the dose delivery mechanism from returning toward a primed position until a full metered dose has been delivered. The non-return mechanism includes a track defining an actuation path and a return path and an engagement member arranged to be received within the track. The track and engagement member are relatively moveable such that the engagement member is arranged to move along the actuation path during actuation of the dose delivery mechanism and along the return path during priming of the dose delivery mechanism. At least a portion of the actuation path is provided with a toothed profile to prevent reverse movement of the engagement member in the actuation path.
    • 用于递送多个单个计量剂量的计量机构(6)包括剂量递送机构; 和非返回机构(10),其布置成防止剂量递送机构返回到起始位置,直到已经递送完全计量剂量。 止回机构包括限定致动路径和返回路径的轨道和布置成接收在轨道内的接合构件。 轨道和接合构件是相对可移动的,使得接合构件布置成在剂量递送机构的致动期间以及在剂量递送机构启动过程中沿着返回路径沿致动路径移动。 致动路径的至少一部分设置有齿形轮廓,以防止接合构件在致动路径中的反向移动。