Patent ID: 9205173
Filing Date: 2015-12-08
Classification: A61L

Abstract:
1. A nerve graft, comprising: a lyophobic substrate, wherein the lyophobic substrate is a silica gel substrate or a substrate coated with silica gel; a carbon nanotube film structure comprising at least one drawn carbon nanotube film located on a surface of the lyophobic substrate and in direct contact with the lyophobic substrate, wherein the at least one drawn carbon nanotube film comprises a plurality of carbon nanotube segments successively oriented along a fixed direction, and joined end-to-end by van der Waals attractive force therebetween along the fixed direction, wherein each carbon nanotube segment comprises a plurality of carbon nanotubes parallel to each other and combined by van der Waals attractive force therebetween, a majority of the carbon nanotubes are oriented along the fixed direction that is substantially parallel to a surface of the carbon nanotube film, and wherein the carbon nanotube film structure has a thickness of about 0.3 micrometers; a protein layer immediately located on a surface of the carbon nanotube film structure away from the lyophobic substrate, a thickness of the protein layer is from about 0.3 micrometers to about 2 micrometers; and a nerve network positioned on a surface of the protein layer away from the lyophobic substrate; wherein the nerve network comprises a plurality of nerve cells and a plurality of neurites branching from the nerve cells and connected between the plurality of nerve cells to form the nerve network.