Chronic, Battery-Free, Fully Implantable Multimodal Spinal Cord Stimulator for Pain Modulation in Small Animal...

Area of Science:

• Biomedical Engineering
• Neuroscience
• Pain Management

Background:

• Spinal cord stimulation (SCS) is an invasive therapy for chronic pain, but its clinical efficacy and mechanisms remain debated.
• Preclinical rodent models offer insights into SCS efficacy and complications, yet current devices are limited by tethers or bulky batteries for long-term studies.

Purpose of the Study:

• To introduce a novel, tether-free, fully implantable, and battery-free SCS device suitable for rodent models.
• To enable on-demand, wireless adjustment of stimulation parameters for long-term SCS research.
• To facilitate scalable fabrication for cost-effective, high-volume studies.

Main Methods:

• Development of a small-footprint, implantable SCS device for rodents.
• Wireless communication for adjustable stimulation frequency, amplitude, and period.
• Proof-of-concept assessment of SCS paradigms for neuropathic pain relief.

Main Results:

• The device provides chronic stability and wireless control of SCS parameters in a rodent model.
• Demonstrated feasibility of assessing therapeutic efficacy of various SCS paradigms.
• Materials and fabrication processes are amenable to scalable, cost-effective production.

Conclusions:

• The developed battery-free SCS device overcomes limitations of existing technologies for rodent studies.
• This innovation supports long-term research into SCS mechanisms and therapeutic efficacy for chronic pain.
• The technology serves as a foundation for future development of advanced SCS therapeutic systems.