Elumn8 Medical, formerly known as Simpson Interventions, today announced the successful initial close of its Series C financing and the company's rebrand to Elumn8 Medical, Inc. The financing will support continued clinical development of the Acolyte Image-Guided Crossing and Re-Entry Catheter System, currently being evaluated in a pre-market clinical trial for the treatment of coronary chronic total occlusions (CTOs). Chronic total occlusions, or completely blocked coronary arteries, represent one of the most persistent challenges in interventional cardiology.