Fig. 4: Material overview and mechanical characterization of the device. | Nature Communications

Fig. 4: Material overview and mechanical characterization of the device.

From: Fully implanted battery-free high power platform for chronic spinal and muscular functional electrical stimulation

Fig. 4: Material overview and mechanical characterization of the device.

a Exploded view rendering of each material layer used in the device, the return electrode, and the spinal electrode. b Change in trace impedance of the serpentine interconnect during cyclic loading measured at 1 kHz. c Strain stress curve of the serpentine structure for the spinal electrode, and d the return electrode.

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