The subject invention relates generally to the repair of severed or damaged nerve and/or epineurium in a patient in need of such treatment. In particular, the present invention provides devices and methods of repairing severed or damaged nerve and/or epineurium. In some embodiments, a device is provided for the in vivo repair of severed or damaged nerve and/or epineurium comprising: a pliable collagen membrane comprising a first surface and a second surface, said first surface having a plurality of protruding collagen bundles and said second surface comprising a plurality of apertures, said apertures and said collagen bundles arranged to form a self-engaging attachment when said first surface and said second surface are placed together.