SAN DIEGO--(BUSINESS WIRE)--Viking Systems, Inc. (OTCBB: VKSY), a designer, manufacturer and marketer of 3-D vision systems for use in minimally invasive surgical (MIS) procedures, has announced that H. Lee Moffitt Cancer Center & Research Institute in Tampa, FL will expand the use of it’s 3Di Digital Vision System and has purchased additional vision systems for use in multiple operating rooms.