At Tampa General our perfusionists are in charge of the platelet gel in the cardiac OR (they use Magellan, see:
http://www.medtronic.com/cardsurgery...an_ovrw.html); for the orthopedic patients the surgical nurses use the Symphony System (DuPuy/J&J, see:
http://www.jnjgateway.com/home.jhtml...Bone_Grafting).
It's made up in the OR using a platelet separator; it doesn't come from the blood bank.