Multi-Wave Punch for Follicular Unit Excision Hair Transplantation Surgery.

Follicular unit excision is widely used for hair transplantation because it lacks a donor scar and is associated with less postoperative pain. Obtaining high-quality grafts and minimizing hair follicle damage during graft harvesting are key. This review elaborates on the types and dynamics of punches used in follicular unit extraction. We also describe the utility and advantages of a new "Multi-Wave Punch," a new type of punch designed to optimize graft extraction and reduce follicular injury. This multi-wave punch is composed of three different parts. The cutting edge at the end is blunt-angled. Adjacent is the leading edge, which is characterized by several horizontally oriented multi-wave shapes. Most proximal is the main body, which is decagonal in shape. Because of the multi-wave and decagonal structure, the punch easily enters the outer layers of the scalp. The wave energy is transmitted to the surrounding tissue, separating hair follicles from adjacent tissue, facilitating extraction, reducing follicular damage, and ensuring higher quality grafts.