An Ulmer drain is placed directly into surgical wounds by means of a trocar or other surgical instrument to perform wound drainage. They are intended for the removal of blood and body fluids in wounds after surgery. Ulmer drains have graduated hole sizes for equal suction effect along full drain length. Must be connected to a collection device. All drains are radiopaque. The products are intended for single use only. More detailed product and packaging information is available under Additional Resources.