The German PAJUNK company is the inventor of the side-port lumbar spinal anesthesia needle. It produced the world’s first side-port spinal anesthesia needle. To this day, the company is still a leader in the production of regional block anesthesia products. The side hole of the spinal anesthesia needle produced by the company is large, the cerebrospinal fluid returns quickly, and the inner and outer walls of the needle body are mirror-polished, which causes minimal damage to the patient. The product has the largest market share in the European and American markets and even the global market.