Advanced Interventional Systems: The Irvine medical laser...

Advanced Interventional Systems: The Irvine medical laser company said it lost $3.4 million, or 34 cents a share, for the first quarter, compared with a net loss of $2.4 million, or 24 cents a share, for last year’s first three months. Quarterly revenue dropped 18% to $2.7 million from $3.3 million.