 Shares of Boston Scientific Corp. BSX, -0.38 rose 0.4 in premarket trading Wednesday, after the medical device company reported third-quarter profit that topped expectations, but sales that came up a bit shy, while nudging up its earnings outlook and cutting its sales growth view. The company swung to net income of 405 million, or 28 cents a share, from a loss of 169 million, or 12 cents a share, in the year-ago period. 