InVivo Therapeutics Holdings Corp., formerly Design Source, Inc., is a research and clinical-stage biomaterials and biotechnology company. The Company is engaged in developing and commercializing biopolymer-scaffolding devices for the treatment of spinal cord injuries (SCI). The Company's approach to treating acute SCIs is based on its investigational Neuro Spinal Scaffold implant, an investigational bioresorbable polymer scaffold that is designed for implantation at the site of injury within a spinal cord contusion and is intended to treat acute spinal cord injury. The Neuro-Spinal Scaffold consists of biocompatible and bioresorbable polymers, which include poly lactic-co-glycolic acid (PLGA) and Poly-L-Lysine (PLL). The Company is also evaluating other technologies and therapeutics that may be complementary to its development of the Neuro-Spinal Scaffold implant. The Company has a clinical development program for acute SCI and a preclinical development program for chronic SCI.