| abstract |
The present invention concerns tubular liners for insertion into a duct, said tubular liners defining first and second ends and a lumen, both of said first and second ends being open, such that fluid flow can occur through said tubular liners from said first end to said second end, characterised in that said liners comprises an auxetic material. Also provided are auxetic tubular liners having a range of specific structures, together with methods of lining ducts using said tubular liners, and apparatus for same. |