Device for emptying a bag containing a frozen blood-derived product, including: a cutting device; an extractor for the product, a hopper for receiving the product, a device for transporting the bag from a receiving area to the plasma extractor, this transporting device including a robotic arm with a gripper which, in turn, includes: two catching arms, each defining at least a distal end and a proximal end, and an actuator, in which the actuator controls a mechanism for modifying the distance separating the distal ends of the gripper arms to catch the bag by its lower surface.