3 Medical-Device Stocks at All-Time Highs -- Are They Buys?

It's a great time to be in the medical-device industry. Sales are booming. Innovation is flourishing. And many stocks are skyrocketing.

Three big medical-device stocks are now at all-time highs: Abbott Laboratories (NYSE: ABT), Abiomed (NASDAQ: ABMD), and Edwards Lifesciences (NYSE: EW). Here's why these stocks are performing so well and a look at whether any of them are still smart picks to buy.