Angel investment is beginning to emerge out of the sinkhole it has stayed in since the economic crash, and the medical device sector is leading the way, according to the University of New Hampshire's Center for Venture Research. Total angel investment during the first half of 2012 hit $91 billion, 3.1% higher than the same period in 2011, the center notes. And 27,280 ventures gained angel funding during that period--3.7% higher than the first 6 months of 2011. Medical devices and equipment, plus healthcare services, attracted 24% of the total angel investments in the first half of this year, by far the largest segment to gain funding. Software followed at 14% and biotech came in third, at 12% of total angel investments. Release