About this trial

This trial is enrolling 6 individuals with chronic cervical spinal cord injury (or tetraparesis due to ALS) to evaluate the safety and functionality of an implanted brain-computer-interface device, the Neuralink N1. The N1 is a small, rechargeable wireless device placed in the skull that uses electrode threads in the brain to record brain activity. These signals are then processed by a computer allowing the user to control external digital devices. If included, participants will receive the N1, implanted in the brain by a robotic inserter. It is assumed that time during the study will be spent testing whether the implanted device effectively controls external devices, although this aspect of the study is not specifically described. Final testing of device functionality and safety will be performed after 6 years.