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Related Experiment Video

Updated: May 9, 2026

Implantation of Optoelectronic Devices in the Rodent Spinal Cord

Implantation of Optoelectronic Devices in the Rodent Spinal Cord

Published on: July 12, 2024

One-time-implantable spinal cord stimulation system prototype.

Chia-Hao Hsu, Shao-Bin Tseng, Yi-Jie Hsieh

IEEE Transactions on Biomedical Circuits and Systems

|July 16, 2013

Summary

This study presents an implantable spinal cord stimulation (SCS) system with wireless power and data transmission. The novel design enhances flexibility and extends operational time, reducing the need for replacement surgeries.

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Area of Science:

Biomedical Engineering
Implantable Medical Devices
Neuromodulation

Background:

Spinal Cord Stimulation (SCS) systems are crucial for managing chronic pain and neurological disorders.
Current SCS systems often require frequent battery replacements, necessitating invasive surgeries.
Limitations in existing SCS technology include power delivery and data communication efficiency.

Purpose of the Study:

To develop a prototype of a one-time-implantable SCS system.
To enhance the operational longevity and reduce the invasiveness of SCS implants.
To improve wireless power and data transmission capabilities for implantable devices.

Main Methods:

Utilized wireless coil coupling for inductive power transfer.
Implemented duplex amplitude-shift keying-load-shift keying (ASK-LSK) for wireless data communication.

Related Experiment Videos

Last Updated: May 9, 2026

Implantation of Optoelectronic Devices in the Rodent Spinal Cord

Implantation of Optoelectronic Devices in the Rodent Spinal Cord

Published on: July 12, 2024

Developed a novel ASK demodulator with high performance and minimal area, eliminating resistors and capacitors.

Integrated power-saving schemes, including dual supply voltages and efficient high-voltage impulse generation.

Incorporated a rechargeable battery to store excess induced energy.

Main Results:

Demonstrated a functional prototype of an implantable SCS system.
Achieved efficient wireless power and data transmission through a single inductive link.
The novel ASK demodulator exhibited high performance and a compact design (1410 × 1710 μm²).
Power-saving strategies significantly reduced power dissipation.
Stored excess energy in a rechargeable battery, extending the implant's operation time.

Conclusions:

The proposed SCS system offers improved flexibility and significantly longer operational duration compared to existing commercial products.
The one-time implantable design, coupled with extended battery life, substantially reduces the frequency of replacement surgeries.
This advancement holds promise for more accessible and sustainable neuromodulation therapies.