Cannula used in clinical applications comprises a cannula bevel produced as a standard beveled edge, centering surfaces on the bevel and outer diameter of the tube, and a tip in the bevel region curved inward as far as the tube axis

摘要

Cannula comprises a cannula bevel produced as a standard beveled edge, and centering surfaces on the bevel and outer diameter of the tube. The tip in the bevel region is curved inward as far as the tube axis. Preferred Features: The centering surface on the bevel side is flatter than the pre-bevel of the standard beveled edge.