Like most medical device executives, Peter DeComo, chairman/CEO of ALung Technologies (Pittsburgh), a developer of respiratory assist devices, knows how difficult it can be to attract investors in the current environment. But with the right strategy and a differentiating technology, raising money is not impossible. ALung proved that with its recently closed $15.8 million Series B-1 financing round. The round is one of the largest this year in Pittsburgh's life sciences market, the company noted.