[Feng needle of the ancient nine needles and its related instruments]

This paper adopts a philological research method to systematically verify and analyze relevant ancient medical literature, selects representative structural diagrams of the feng needle, and sorts out the historical evolution of its morphological structure, operational techniques and indications. At the same time, this paper organizes the literature records of ancient and modern related instruments derived from the feng needle, and explores their technical inheritance and innovative characteristics. The aim is to lay a documentary foundation for further elucidating the clinical mechanism of the feng needle, and to provide theoretical support for the standardized research and promotion of its application in modern clinical practice.