Intravascular delivery of an ultraflexible neural electrode array for recordings of cortical spiking activity.

Autor: Wang X; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China., Wu S; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China., Yang H; Shanghai Geriatric Medical Center, Shanghai, China.; Zhongshan Hospital, Shanghai, China., Bao Y; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.; University of Chinese Academy of Sciences, Beijing, China., Li Z; Fudan University, Shanghai, China., Gan C; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China., Deng Y; ShanghaiTech University, Shanghai, China., Cao J; University of Shanghai for Science and Technology, Shanghai, China., Li X; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China., Wang Y; Zhongshan Hospital, Shanghai, China.; Fudan University, Shanghai, China., Ren C; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China. renc@ion.ac.cn., Yang Z; Zhongshan Hospital, Shanghai, China. yang.zhigang1@zs-hospital.sh.cn., Zhao Z; Institute of Neuroscience, Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China. zhaozt@ion.ac.cn.; University of Chinese Academy of Sciences, Beijing, China. zhaozt@ion.ac.cn.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2024 Nov 01; Vol. 15 (1), pp. 9442. Date of Electronic Publication: 2024 Nov 01.
DOI: 10.1038/s41467-024-53720-5
Abstrakt: Although intracranial neural electrodes have significantly contributed to both fundamental research and clinical treatment of neurological diseases, their implantation requires invasive surgery to open craniotomies, which can introduce brain damage and disrupt normal brain functions. Recent emergence of endovascular neural devices offers minimally invasive approaches for neural recording and stimulation. However, existing endovascular neural devices are unable to resolve single-unit activity in large animal models or human patients, impeding a broader application as neural interfaces in clinical practice. Here, we present the ultraflexible implantable neural electrode as an intravascular device (uFINE-I) for recording brain activity at single-unit resolution. We successfully implanted uFINE-Is into the sheep occipital lobe by penetrating through the confluence of sinuses and recorded both local field potentials (LFPs) and multi-channel single-unit spiking activity under spontaneous and visually evoked conditions. Imaging and histological analysis revealed minimal tissue damage and immune response. The uFINE-I provides a practical solution for achieving high-resolution neural recording with minimal invasiveness and can be readily transferred to clinical settings for future neural interface applications such as brain-machine interfaces (BMIs) and the treatment of neurological diseases.
(© 2024. The Author(s).)
Databáze: MEDLINE
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