Thermal Strain-Induced Self-Rolling Mesh Cuff Electrodes for Non-Linear Peripheral Nerve

Cuff electrodes have been widely utilized on peripheral nerve for neural stimulation and recording applications. In this paper, we have proposed a self-rolling meshed cuff electrode induced by the thermal strain. The final cuff diameter is about 1.4 mm, which can match well with the peripheral nerve of rat (diameter of 1.54 mm at ischial tuberosity of sciatic nerve). The mechanical simulation of the mesh cuff illustrates the oblivious change from the plane cuff when bending with the nerve model. The mesh cuff not only facilities the flow of interstitial fluid in and out, but also shows the potential to combine with microfluidics or optogenetics technology.