The Holston Business Development Center In Kingsport Has A New Tenant. Flow Med-Tech Is Developing An Implantable Medical Device To Prevent Strokes In People With Irregular Heart Rhythms. The Patent-Pending Technology Prevents Clot Formation By Blocking Blood Flow. The Company Recently Announced It’s Expanding Its Team As Well With A New Vice President Of Medical Affairs. The Hbdc Opened In 2003 And Provides Entrepreneurial Support For Start-Up Companies As A Small Business Incubator.