Some medical device companies hold such a strong competitive position in their industry that it isn't a stretch to call them a monopoly. In this week's episode, Motley Fool Contributor Brian Feroldi and Industry Focus host Shannon Jones discuss why Intuitive Surgical, Abiomed, and Novocure are three medical device monopolies hiding in plain sight.

Stocks Mentioned: ISRG, ABMD, NVCR

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