You may not think of medical device makers as some of the most profitable companies on the markets, but make no mistake -- this industry's top players aren't shy about bringing in top profits. Small, niche companies and powerhouses alike have been able to capitalize on the rising demand for health care to generate strong bottom lines and reward investors handsomely for their gains.

However, just because a company's highly profitable doesn't mean that it's necessarily a good buy for investors. In the medical device industry, which companies are using their businesses for the biggest rewards?

In the video below, Fool contributor Dan Carroll takes you through three of the device industry's most profitable companies. From an innovative tech leader to one of the industry's most recognizable names, these companies make compelling cases to score a spot in your portfolio.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.