Forever is a long time. But there are a select few companies that can deliver strong returns to their shareholders over the entire course of their lives. These fortune-builders typically benefit from powerful trends that help to drive their sales and profits consistently higher over time.

To help you in your search for the best long-term investments, here are three elite businesses that are set to generate wealth-building gains for their shareowners for decades to come.

The shift to robot-assisted medical procedures is likely to be one of the most lucrative in all of healthcare. That's great news for Intuitive Surgical (NASDAQ: ISRG), the global leader in robotic surgery solutions.

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Source Fool.com