| Product | Material | Structure | Degradation time | Company | FDA-approval |
| NeuroTube | Polyglycolic acid | Absorbable woven mesh tube | 3 mo | Synovis Micro Companies | 1999 | NeuraGen | Type I collagen | Semipermeable, fibrillar | 3-4 yrs | Integra LifeSciences Co., Plainsboro, NJ, USA | 2001 | NeuroFlex | Type I collagen | Semipermeable, flexible, tubular | 4–8 mo | Collagen Matrix, Inc., Franklin | 2001 | NeuroMatrix | Type I collagen | Semipermeable, flexible, tubular | 4–8 mo | Collagen Matrix, Inc. | 2001 | NeuraWrap | Type I collagen | Semipermeable, longitudinal slit in wall | 36–48 mo | Integra LifeSciences Co. | 2004 | NeuroMend | Type I collagen | Semipermeable wrap, unrolls and self-curls | 4–8 mo | Collagen Matrix, Inc. | 2006 | Neurolac | Poly-DL-lactide-caprolactone | Synthetic and transparent, tubular | 16 mo | Polyganics BV, Groningen, Netherlands | 2003 | SaluTunnel | Polyvinyl alcohol | Nonbiodegradable | No degradation | Salumedica LLC, Atlanta, GA, USA | 2010 | Avance | Processed human nerve allograft | AxoGen, Inc., Alachua, FL | 2010 | AxoGuard | Extracellular matrix derived from porcine small intestine submucosa | Absorbable semipermeable | No data | AxoGen, Inc., Alachua, FL | 2013 |
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