An improved method for high-volume production of coated stents with highly uniform
stent coatings using a roll coating technique is provided. In a first embodiment,
uncoated stents are placed onto rotating stent holders with automated stent handling
equipment. The holders are mounted on an endless conveyer belt which advances the
stents toward a stent coater. As the stents advance through the coater, the holders
rotate, thereby rolling the stents about their longitudinal axes as coating material
is sprayed toward them, ensuring the stents are uniformly coated on their exterior
and interior surfaces. After the conveyer turns to carry the coated stents back
toward the loading area, the rotating stents pass again through the coating spray,
downstream of the initial coating location, thereby increasing the efficient utilization
of the coating material. The conveyer then advances the coated stents to an unloading
area for removal before the holders return to the stent loading area to receive
new stents.