Arboretum Ventures, a venture capital firm, led a $28m Series C round in AtaCor Medical, a privately-held medical device company, with participation from Longview Ventures, Hatteras Venture Partners, Catalyst Health Ventures, and BayMed Venture Partners. "Arboretum Ventures is thrilled to lead this round and collaborate with the world class team at AtaCor in their efforts to deliver pioneering EV cardiac rhythm management solutions. The AtaCor technology has the potential to significantly improve the lives of millions that rely on pacemakers and ICDs for life sustaining rhythm management," Jan Garfinkle, Arboretum Ventures Founder and Managing Partner.