Patent ID: 9468723
Filing Date: 2016-10-18
CPC Classification: A61M

Claim Text:
1. A medicament delivery device, comprising: an elongated housing; a carrier configured to house a medicament container to which a medicament delivery member is attached, wherein the carrier is slidably accommodated within the housing; a trigger unit, comprising an actuator button and an actuator connected to each other; a cover unit coaxially and slidably disposed in the housing; a release mechanism configured to be actuated partly by the operation of the trigger unit and partly by movement of the cover unit; a preloaded drive unit releasably connected to the carrier and controlled by the release mechanism for advancing the carrier to a predetermined proximal position in relation to the housing, wherein the preloaded drive unit comprises a plunger rod and a helical drive spring disposed within the plunger rod; at least one end of the helical drive spring is configured to interact with an interior of the plunger rod; and when the carrier reaches the predetermined proximal position, the drive unit becomes disconnected from the carrier for advancing a slidable stopper within the container and thereby dispensing the medicament; and a braking mechanism between the preloaded drive unit and the release mechanism configured to control a speed of the preloaded drive unit when advancing the slidable stopper within the container, wherein the braking mechanism comprises: