Powering strategies for implanted multi-function neuroprostheses for spinal cord injury

Area of Science:

• Biomedical Engineering
• Neuroscience
• Rehabilitation Technology

Background:

• Implantable motor neuroprosthetic systems restore function in individuals with paralysis due to spinal cord injury, stroke, cerebral palsy, and multiple sclerosis.
• Neuroprostheses activate paralyzed muscles to enable controlled movement lost through injury or disease.

Purpose of the Study:

• To demonstrate the practicality and feasibility of wired multipoint implant technology for multi-function neuroprosthetic systems.
• To evaluate the advantages of a centralized power supply and mitigate heating during recharging.

Main Methods:

• Development and testing of a wired multipoint implant technology for neuroprosthetic systems.
• Implementation of an actively cooled external recharge coil to manage heat during recharging.
• Assessment of the time required for a full recharge of the implanted system.

Main Results:

• The wired multipoint implant technology was demonstrated as practical and feasible.
• A centralized power supply offers significant advantages for neuroprosthetic systems.
• Actively cooled recharge coils effectively mitigated heating and significantly reduced full recharge time.

Conclusions:

• Wired multipoint implant technology provides a viable foundation for advanced neuroprosthetic systems.
• Efficient and safe recharging methods are crucial for the clinical application of implanted neuroprostheses.
• This approach is a practical option for the regular clinical use of implanted neuroprostheses.