The Type dimension of Nerve Repair segmentation distinguishes four primary graft categories: autografts, allografts, synthetic conduits, and bioengineered grafts. Autografts, harvested from the patient’s own tissue, dominate the market due to their superior biocompatibility and established clinical outcomes, contributing roughly 40 % of total sales. Allografts, sourced from donor tissue, account for about 25 % and are valued for reduced donor‑site morbidity, though they require stringent processing to mitigate immunogenic risk. Synthetic conduits, fabricated from polymers such as polyglycolic acid or collagen‑based matrices, capture approximately 20 % of the market, driven by lower cost and off‑the‑shelf availability. Bioengineered grafts—incorporating cellular scaffolds, growth factors, or gene‑editing technologies—represent the fastest‑growing niche at roughly 15 %, reflecting ongoing investment in regenerative medicine. Together, these sub‑types define the market’s structural composition and guide R&D allocation within the broader Nerve Repair market.