the epidural needle
The epidural needle is a specialized medical device designed for precise delivery of anesthetic medication into the epidural space of the spine. This sophisticated instrument features a distinctive design with a curved tip known as the Tuohy point, which helps guide the catheter while minimizing the risk of accidental dural puncture. Typically ranging from 16 to 18 gauge in size, these needles are crafted from high-grade surgical stainless steel to ensure durability and patient safety. The needle incorporates depth markings along its shaft, enabling healthcare providers to accurately monitor insertion depth. Modern epidural needles often include transparent hubs that allow for immediate visualization of cerebrospinal fluid or blood, providing crucial feedback during placement. The design includes a secure locking mechanism for the catheter, ensuring stable positioning throughout the procedure. Advanced epidural needles may feature special coatings to enhance smooth insertion and reduce tissue trauma. These needles are essential in obstetrics, pain management, and various surgical procedures where precise epidural anesthesia administration is required. The technology continues to evolve with innovations in materials and design features to improve both practitioner control and patient comfort.