Sterling Medical Systems, a West Valley-based company manufacturing and marketing infusion medical management equipment and related disposable plastic products, has appointed JLB Associates of Nashville, Tenn., as the exclusive distributor of SMS products in Central America and South America.

Dale N. Putnam, president, said he reached an agreement with JLB's president, Larry Brown. He said JLB has a successful history of supplying medical infusion equipment directly to governments of Central America and South America.Putnam anticipates $2 million in orders during 1989 as a result of the new relationship with JLB.