Audiomesh Neuro® is a bio-implant on the basis of equine collagen, which is the sole material of animalistic origin that is free from bovine spongiform encephalopathy germs. It is manufactured by using an enzyme-chemical procedure to eliminate cellular components and retain the robust collagen net. The material is then densified to reduce the thickness of the pericardium from 0,4mm to 0,2mm. Its material strength and hereby suturing parameters are far superior to conventional collagen implants. The special manufacturing process results in a product that is transparent and thus allows by visually inspecting the below tissue for an optimal adjustment and furthermore easily helps to identify bleedings from the suturing process. Audiomesh Neuro® is thus the first product to combine the advantages of biological and synthetic dura-implants.