Sudhir Prem Srivastava could have been a story of living up an American dream. But deep within, the cardiac surgeon longed for a different desire. When fatigue sets in and most see the best of their lives in the rear view, the 75-year-old is on a disruptive drive.

SS Innovations (SSI), his company, is slowly wrestling the dominance of deeply entrenched global players that make high-precision robotic surgery systems. It could have been an endless.