CAMBRIDGE, Mass.--(BUSINESS WIRE)--InVivo Therapeutics Holdings Corp. (NVIV), a developer of groundbreaking technologies for the treatment of spinal cord injuries (SCI) and other neurotrauma conditions, today announced that the Company has received approval for its request filed with the U.S. Food and Drug Administration (FDA) for Humanitarian Use Device (HUD) designation for its biopolymer scaffolding product.