The present disclosure pertains to membranous tissue grafts comprising one or more pre-made attachment points. The one or more pre-made attachment points may include pre-made markings and/or pre-made suture holes. The membranous tissue grafts can be in the form of a tube. The membranous tissue grafts can also be rectangular in shape and can be used in a nerve repair by wrapping the severed or damaged nerve. In some embodiments, the membranous tissue grafts are suitable for repairing severed nerves that have a short gap or no gap with a gap of less than 5 mm between the severed stumps. Accordingly, methods are provided for repairing a damaged or severed nerve by implanting the membranous tissue grafts on to the damaged or severed nerve.本發明相關於包含一或多個預製附接點的膜狀組織移植物。該一或多個預製附接點可包括預製標記及/或預製縫合孔。該膜狀組織移植物可為管狀形式。該膜狀組織移植物也可為矩形，並可藉由包覆被切斷或受損的神經而用於神經修復。在一些實施例中，膜狀組織移植物適用於修復切斷的神經，該神經具有小間隙或無間隙，在切斷的殘端之間具有小於5 mm的間隙。因此，係提供一種將膜狀組織移植物植入受損或切斷的神經，來修復受損或切斷神經的方法。
