Patent ID: 7597764

Claim:
A system for loading beneficial agent onto a prosthesis for delivery within a lumen, the system comprising: a holder for supporting a prosthesis to be deployed within a lumen; a fluid-dispenser having a dispensing element capable of dispensing beneficial agent in discrete droplets, each droplet having a controlled trajectory, the dispensing element and the holder being movable relative to each other; a driver for creating relative movement between the dispensing element and the holder; a controller in communication with the driver to define a dispensing path for dispensing discrete droplets of beneficial agent in a raster format, the controller also in communication with the dispensing element to selectively dispense beneficial agent from the dispensing element to a predetermined portion of a prosthesis supported by the holder along the dispensing path; and a beneficial agent detector in communication with the controller configured to determine an amount of beneficial agent loaded on a prosthesis, the beneficial agent detector being configured to image the prosthesis to determine an amount of identifiable marker loaded onto the prosthesis to determine a corresponding amount of beneficial agent loaded to the prosthesis.