Medical device delivery system

摘要

A medical device delivery system (10) for remotely deploying a stent or similar medical device is disclosed. The medical device delivery system includes a delivery device (11) having a handle (12) engaged to an elongated barrel (14) with a puller arrangement (16) attached to an elongated outer catheter defining a distal end engaged to a catheter tip that collectively encapsulates the medical device. The handle includes a trigger actuator (26) operatively engaged to a drive mechanism with a lead screw that drives the puller arrangement along the barrel. During deployment, the trigger actuator is actuated by the user, which activates the drive mechanism and rotates the lead screw for moving the puller arrangement to automatically deploy the medical device. In manual operation, the user disengages the lead screw from the puller arrangement and manually moves the puller arrangement toward the handle to manually deploy the medical device rather than actuate the trigger actuator.