The RĂ¼sch Siliconized Tiemann Intermittent Catheter from IndeMedical.com is designed to be a helpful solution for difficult catheterization. Rusch Tiemann catheters are flexible with a curved tip and relatively stiffer shaft making catheterization easier. The flexible design is achieved by molding the tip separately and then joining it to the shaft. Each tip is color coded to indicate a specific french size and the notch on the catheter funnel helps the user maintain the curved catheter tip in the proper up position during catheterization. The catheters are made of siliconized PVC. Ordering Options: