The W. Lorenz Stainless Empyema Trocar and Obturator 29-0150 is a surgical instrument designed for use in orthopedics, veterinary medicine, and general surgery. Made in Germany by the brand Codman, this Nelson Trocar and Obturator set includes the Nelson and Patterson models. Known for their durability and precision, these instruments are essential tools for various surgical procedures. The United States origin of the brand adds a level of quality and reliability to the product, making it a trusted choice for medical professionals in the field.