Earnings Winners and Losers: JNJ, MMSI, ABT, ZBH, SNN, EW, Plus Round-Up

Among the medtech companies who have released their first-quarter 2017 sales and earnings, Johnson & Johnson and Merit Medical Systems reported progress in their long-term plans to reshape their medical device businesses, while Abbott and Zimmer Biomet received some bad news in the quarter. Smith & Nephew shows signs of a turnaround, and perennial "winner" Edwards Lifesciences provided updates on some important developments in their flagship transcatheter valve business.