About this trial

This trial is recruiting individuals with spinal cord injuries who have limited or no hand activity to test the safety and effect of a brain-machine interface (BMI) device. The device includes two microelectrode arrays that are implanted in the brain to record the specific nerve signals that control movement and sensation in the arms, hands and legs. The electrodes can also send electrical pulses back to the brain’s sensory areas to allow a feeling of sensation in the extremities. Motor and sensory areas in the brain remain active after spinal cord injury even though the signals do not reach their targets below the injury. The neural signals are interpreted by a computer and translated to movement, which can then be used to control a variety of devices or computer displays. The investigators will study the electrodes for long term recording and movement control. Participants will receive surgery to implant the electrodes. Training and evaluations will last up to 12 months, or optionally longer. Surgery will be required to remove the sensors when the trial is completed.