A new survey finds venture capital investors pumped more than $2.1 billion into medical device companies last year, the most since 2000. The annual Money Tree Survey found that about 28 percent of venture capital money went to the med tech and biotech sectors. That's more than the 25 percent that went to software start-ups in 2005. The growth in med tech was led by investments in companies that make knee replacements, defibrillators and "other devices for which demand is expected to increase as the baby boom generation ages" reports USA Today. Article