FountainVest Partners, a private equity firm, led a Series D round in Broncus, a medical equipment manufacturer. Other investors include Exome Asset Management, Summer Capital, and Valliance Capital. Financial terms were not disclosed. The funds raised in this round will be used for the commercialization and development of technology across lung cancer, emphysema and other important lung diseases. Efforts will include expanding commercial adoption and global clinical studies of the core products, and further development of next-generation radiofrequency technology to treat lung cancer with precision.