Fig. 2
From: A soft, scalable and adaptable multi-contact cuff electrode for targeted peripheral nerve modulation
Cuff contact, compression and stability on phantom nerves. A Comparison of nerve perimeter contact of a soft and fixed-diameter cuff (schematically illustrated on the left). Quantification of soft cuff contact on 3 mm and 5 mm phantom nerve cross sections indicates full coverage, regardless of nerve size (top). Fixed cuffs do not ensure full contact (exposed areas in red). White arrow indicates visible compressive indentations (bottom). B DIC strain quantification of soft vs. fixed cuffs wrapped around hydrogel nerves of approximately 5 mm diameter. No area of critical compressive strain is visible with soft cuff. C Experimental setup of mechanical cuff pulling test (inset image) and a representative force-displacement curve with highlighted maximal force reached before cuff dislocation. D Maximal limit force for displacement of soft cuff (n = 4) indicates that stability is independent of nerve size, unlike fixed-diameter cuff (n = 4). Statistics: two-sample t-test, *p < 0.05, **p < 0.01, ns p > 0.1