Raymedica Website: www.raymedica.com Raymedica, Inc., a privately-held company, is headquartered in Bloomington, Minnesota. It is a medical device company focusing on clinical trials and commercialization of its unique and proprietary PDN (Prosthetic Disc Nucleus) technology, to act as a disc nucleus replacement. The PDN-SOLO, the main product, is intended to restore disc height along with the physiological function of absorbing and emitting fluids, and allowing fluid transfer between the vertebral bodies. The PDN-SOLO device is as effective in pain reduction as the earlier generations of the PDN device, but is easier to implant and has a significantly lower adverse event rate. It is important to understand that Raymedica’s largest obstacle in the past had been the device explant rate. The PDN-SOLO device has addressed these issues, with less than a 1% explant rate.