Nicole J. Walker, managing partner, Arboretum Ventures, tells a unique medtech story that begins with her sick grandfather and follows up with her refusal to remove her foot from the door at Advanced Cardiovascular Systems. She says she learned early on that she may not always have all the answers when making a decision but she would have the instincts and mettle to push through. This combination moved through jobs at Guidant, Abbott, Baird and now Arboretum Ventures where she sees an enormous opportunity finding medical device companies.