Stocks have roared higher in 2013 as markets have surged to record highs. Regardless of the industry, companies far and wide have rewarded investors with soaring stock prices. The medical device industry may be under pressure recently between a tough, competitive landscape, Europe's fiscal mess, and pricing pressures that have hampered sales, but leading medical device stocks have posted eye-popping gains so far this year.

Just which stocks have performed the best nearly halfway through 2013? Both well-known big players and small up-and-comers rank among the top medical device picks this year, servicing everything from the spinal product industry to the cardiovascular market. Below, Motley Fool contributor Dan Carroll highlights the best bets from the sector so far -- and which of these stocks are set to keep rewarding investors with handsome gains in the future.