Intuitive Surgical runs a great business, but it is a one-trick pony, which may make this surgical robot competitor a better choice for you.Intuitive Surgical (ISRG -0.27%) has a great business, but it is also a highly focused business. And right now, investors appear worried by that fact. You can diversify your medical device exposure and collect a lofty dividend yield if you switch gears and buy this surgical robot competitor instead.What's wrong with Intuitive Surgical?Intuitive Surgical was one of the f ...