Abstract: A flexible T-tube for utilization in surgical procedures and the like includes a flexible crossbar comprising two generally planar and intersecting walls joined at an apex and forming a V-shaped channel communicating with the stem near the center of the apex. The stem has an elliptical outer cross-section near the juncture thereof with the crossbar channel and is aligned such that the major axis of the elliptical cross-section of the stem is aligned generally parallel to the longitudinal axis of the crossbar channel. The walls of the crossbar channel are trimmed prior to insertion into a body duct such that the walls fit generally snugly within the duct.

Abstract: A clip apparatus for use in cholangiography or the like includes a clip, a catheter and a tool for applying and removing the clip from the cystic duct or the like. The clip preferably has two opposed C-shaped surfaces in jaws which can be biased together such that opposed edges touch to apply the clip or spread apart such that at least one set of opposed edges is spread to allow removal of the clip. The clip includes arms attached to the jaws which are medially bent outward at the time the clip is applied and which are compressible to rotate the jaws relative to one another about a common fulcrum to space sides of the jaws opposite the fulcrum and allow easy removal of the clip. The catheter is inserted in the cystic duct during a cholangiography procedure and held therein by the clip. The catheter is serrated on the surface thereof which engages the duct beneath the clip.