English 
The core advantage of minimally invasive surgery is completing procedures through extremely small incisions, which means the core components of supporting instruments must be miniaturized to the extreme — often just a few millimeters in diameter — while still maintaining enough structural strength to withstand operating forces during surgery. Machining these parts demands extremely high equipment rigidity and workshop environmental stability, as even minor vibration or temperature fluctuation can push dimensions out of tolerance. Medical devices also require far stricter traceability than typical industrial parts, with complete machining records and inspection reports usually required for every batch.
