Kirkland, Wash.-based Cardiac Dimensions raised a $17.5 million Series C round. The company will use the fresh cash to help sell its heart-valve repair device. Founded in 2001, the Seattle-area medical device startup has developed a way to address cardiovascular conditions with its Carillon Mitral Contour System, a non-surgical device that treats a form of congestive heart failure called mitral valve regurgitation, which affects how the heart properly pumps out blood. The Series C round included existing investors such as Aperture Venture Partners, Arboretum Ventures, Hostplus, Life Sciences Partners, Lumira Ventures, and M. H. Carnegie & Co.