Engagement and sensing systems and methods

摘要

A delivery device for delivering fluidic media may include a second housing portion configured to be selectively engaged with and disengaged from a first housing portion adapted to be carried by a user, a drive device configured to be operatively engageable with a plunger arm connected to a plunger head arranged for movement in an axial direction of a reservoir supported by one of the first and second housing portion to drive fluidic media from the reservoir, a drive linkage for operatively engaging the drive device with the plunger arm for allowing the drive device to move the plunger arm, the drive device including a first gear engageable with the plunger arm and a second gear configured for lateral movement to allow the second gear to engage the plunger arm.

主权项

1. A delivery device for delivering fluidic media, the delivery device comprising:
a first housing portion adapted to be secured to a user; a second housing portion configured to be selectively engaged with and disengaged from the first housing portion, one of the first housing portion and the second housing portion for supporting a reservoir for containing fluidic media; a drive device configured to be operatively engagable with a plunger arm connected to a plunger head arranged for movement by the drive device in an axial direction of the reservoir, the drive device configured to drive fluidic media from the reservoir in a case where the drive device is operatively engaged with the reservoir and the plunger arm is moved in the axial direction relative to the reservoir; and a drive linkage for operatively engaging the drive device with the plunger arm to allow the drive device to move the plunger arm, the drive linkage including a first gear and a second gear operatively engaged with each other, the first gear engageable with the plunger arm, the second gear supported on a shaft having an axis and a longitudinal dimension, the second gear supported for rotation about the axis of the shaft, the second gear supported for lateral movement in a direction along the longitudinal dimension of the shaft such that the lateral movement of the second gear allows the first gear to engage the plunger arm.