Last summer, surgeons at Ohio State University Medical Center began testing a robot named da Vinci on patients requiring a single coronary artery bypass.

• 去年夏天，俄亥俄州立大学医学中心的外科医生开始试验一个名叫达 - 芬奇的机器人，为病人做单纯冠状动脉旁路手术。