About this trial
The clinical trial aims to evaluate the safety and efficacy of the minimally invasive, wireless brain-machine interface system (WRS) in enabling general brain control of external devices, such as a cursor and other assistive technologies, for paralyzed and amputee patients.
WRS integrates a high-throughput, ultra-flexible neural electrode with an extremely small cross-sectional size-approximately one-hundredth the diameter of a human hair. Moreover, the implantable component is fully embedded within the body, leaving no visible external traces.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Aged 18-80 years (inclusive), any gender.
Diagnosed with spinal cord injury, brainstem stroke, amyotrophic lateral sclerosis, or other motor neuron diseases causing partial or complete paralysis, or bilateral upper limb amputation.
Diagnosis stable for at least 6 months before screening, with the condition present for at least 1 year.
Willing to follow the study protocol and attend all visits, with or without caregiver assistance.
Disqualifiers
Previous implantation of metal objects or devices (except dental implants or non-impacting implants).
Long-term use of anticoagulants/antiplatelets with insufficient cessation, or abnormal coagulation test results.
Unable to tolerate anesthesia or surgery.
Severe neurological disorders or brain injury leading to significant dysfunction.
Trial design
Single group
Treatments tested in this trial
WRS
DeviceWRS is a minimally invasive, wireless brain-machine interface system, consisting of a wireless implanted neural signal collector(Model: WRS64), data energy transmitter(Model: DTC01/02), and a brain function information management platform software(Model: SW01).
Treatment groups
Trial outcomes
Primary outcomes
Device-Related Adverse Events (AE)
Secondary outcomes
Adverse Events
Serious Adverse Event
BPS
Bits per second, determined by the net number of correct targets selected per minute (NTPM) during task participation by the subject, and the grid size.
Usage Time (hours/month)
The amount of time the subject uses the experimental device each month.
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Shanghai StairMed Technology Co., Ltd.
Lead sponsor
Huashan Hospital
Collaborator