share: digg facebook twitter IN PLAY: Synthes Inc., a Swiss-U.S. maker of orthopedic implants and instruments, confirms it's in acquisition talks with Johnson & Johnson, a top global manufacturer of medical devices. J&J RATIONALE: It could raise revenue with Synthes' $4 billion in sales, and cut overlapping jobs to boost profit. Longer-term, it would gain a dominant position in the growing market for orthopedic surgery products, particularly for trauma patients. SWISS RICHES: The sale could make multibillionaire chairman Dr.