公开(公告)号：US10099005B2

公开(公告)日：2018-10-16

申请号：US14921697

申请日：2015-10-23

Applicant: Johnson Electric S.A.

Inventor： Jian Dong Gao ,  Wai To Li

IPC: A61M31/00 ,  A61M5/142 ,  H02K7/116 ,  H02K7/14 ,  H02K11/21 ,  A61M5/168 ,  F16H25/20 ,  H02K7/06 ,  A61M5/14

Abstract: A drive mechanism for a medication delivery device includes a motor, a housing, a gear cover, a gear transmission system, a helical transmission system, and a sensor system. The helical transmission system includes a plug, a screw shaft, and a sliding block connecting the plug to the screw shaft. The gear transmission system includes a first gear disposed on an output shaft of the motor and a second gear disposed on one end of the screw shaft. Dual gears interconnect the first and second gears. The motor drives the plug along a linear path by rotating the screw shaft via the gear transmission system, causing the sliding block to move along the screw shaft. The sensor system monitors the driving process. The plug provides the force required to effect the dosing of the medication.

公开(公告)号：US10231714B2

公开(公告)日：2019-03-19

申请号：US14866289

申请日：2015-09-25

Applicant: Johnson Electric S.A.

Inventor： Jian Dong Gao ,  Wai To Li

IPC: A61B10/02

Abstract: An actuator for a medical device includes a housing, a driving unit mounted in the housing, a first moving unit slidably mounted in the housing and movable by the driving unit. The first moving unit includes a movable first car, an spring with two ends thereof abutting the housing and first car, respectively, and a lock formed between the driving unit and first car. The lock includes a first snap and a first protrusion detachably engagable with the first snap. One of the first snap and first protrusion is formed on the first car, and the other is formed on the driving unit. When the first protrusion disengages from the first snap, the spring moves the first car relative to the housing.