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A Low Power Micro Deep Brain Stimulation Device for Murine Preclinical Research
Abbas Z Kouzani1, Osama A Abulseoud2, Susannah J Tye2
1Deakin University School of Engineering Waurn Ponds Victoria 3216 Australia.
Summary
Researchers developed a portable micro deep brain stimulation (DBS) device for freely moving lab animals. This lightweight, low-power system enables over 12 days of continuous stimulation, overcoming limitations of current bulky DBS technology.
Area of Science:
- Neuroscience
- Biomedical Engineering
Background:
- Deep brain stimulation (DBS) is effective for neuropsychiatric disorders.
- Preclinical research requires long-term DBS in freely moving animals.
- Existing DBS devices are bulky and limit continuous stimulation.
Purpose of the Study:
- To present a low-power, lightweight, portable micro deep brain stimulation (DBS) device.
- To enable long-term, uninterrupted brain stimulation in laboratory animals.
- To overcome the limitations of current bulky DBS systems.
Main Methods:
- Developed three configurations: head-mountable and two back-mountable.
- Designed for portability and ease of use by laboratory animals.
- Incorporated passive charge balancing to minimize tissue effects.
Main Results:
- The device is lightweight and portable for animals.
- Achieved over 12 days of continuous stimulation on a single battery.
- Demonstrated performance through bench, in-vitro, and in-vivo testing.
Conclusions:
- The portable micro DBS device facilitates long-term preclinical research.
- Addresses the bottleneck of continuous brain stimulation in animal models.
- Offers a viable solution for studying DBS mechanisms and effects.
