PORTABLE DRUG DELIVERY DEVICE HAVING REUSABLE UNIT WITH ELEMENTS FACILITATING INSERTION, RETENTION AND DETECTION OF DISPOSABLE RESERVOIR UNIT

摘要

Fluid delivery device (500) including a reservoir and a plunger arm operatively connected to a plunger head arranged for movement within the reservoir, the plunger arm having an arm portion operatively engageable with a drive member (540) configured to move the plunger arm and the plunger head when the plunger arm and the plunger head are connected to the drive member. The system may include a rigid member (567) arranged for movement and a bias member (569) configured to urge the rigid member toward the plunger arm to force the plunger arm against the drive member to operatively engage the plunger arm to the drive member.