Peripheral Nerve Cuff Series
Hardware
A nerve cuff is a 12 µm polyimide array pre-curved during fabrication to wrap a peripheral nerve from the outside, so nothing penetrates the epineurium and the axons are not damaged on placement; the signal is summed across fascicles rather than resolved within one.
Curvature is fixed at fabrication, so the diameter is chosen rather than adjusted: a cuff sized for a larger nerve sits loose and moves, one sized too small compresses the nerve. The target nerve is measured before selection. Catalog designs are pre-curved to 350 µm, 900 µm and 3 mm, with other diameters available, and have 3 to 24 platinum sites. A sieve variant places holes through the array for a transected nerve to regenerate through, seeded with neural growth factor, giving per-site access to regenerating fibers; it requires a transected nerve and is a different experiment rather than a different mounting. The four grid families and their packaging are under thin-film grid.
Records and stimulates. Research use only.
Typical values
| Catalog designs | 6 |
|---|---|
| Sites | 3 to 24 |
| Pre-curved diameters | 350 µm, 900 µm, 3 mm |
| Substrate | 12 µm polyimide; platinum sites |