epidural needle types
Epidural needle types represent essential medical devices designed specifically for delivering anesthesia into the epidural space. These specialized needles come in various designs, with the most common being the Tuohy needle, characterized by its curved tip and lateral opening. The needles are precisely engineered with specific gauges, typically ranging from 16G to 20G, and lengths varying from 8 to 15 centimeters to accommodate different patient populations. Modern epidural needles incorporate advanced features such as centimeter markings for depth guidance, wings for enhanced control during insertion, and specialized tips designed to minimize tissue trauma. The needles often feature transparent hubs allowing visualization of cerebrospinal fluid or blood, crucial for proper placement confirmation. Materials used in manufacturing these needles prioritize biocompatibility and durability, typically utilizing surgical-grade stainless steel with special coatings to reduce friction during insertion. Contemporary designs also include safety features like depth stops and clear markings to prevent overshooting the targeted space. These needles serve multiple applications beyond traditional labor analgesia, including chronic pain management, post-operative pain control, and diagnostic procedures.