[Of what kind of material should bile duct T-tubing be made?].

T-drainage tubings consisting of siliconized latex, silicone rubber, siliconized latex with additional silicone treatment of the surface of the short legs, or silicone rubber with PVC covering of the long branch were tested in experiments with dogs. Fibrous encapsulation, incrustation, and behaviour of the material were checked after 1, 2, 4, and 12 weeks. Siliconized latex proved to be the most suitable material.