Two-stage venous cannula for drainage of the heart

摘要

The utility model relates to the field of medicine and medical technology, namely to cardiovascular surgery, and is aimed at ensuring the optimal rate of venous return to the cardiopulmonary bypass (IR) circuit during simultaneous cannulation of the right atrium and inferior vena cava, due to the possibility of regulating venous cannula occlusion without special additional devices, such as clamps. This is achieved by the fact that the two-stage venous cannula for draining the heart contains an obturator installed in the arm a wire-walled casing, which ends at one end with a perforated tip, collective tunnels and cutouts extending from them, opening into the general lumen, and on the other, with a connector for attaching to the IR apparatus and protrusions with a clamp holder and a corrugated surface, characterized in that has drainage holes. A useful model may find application in the practice of cardiovascular surgery, in particular during operations using IR and accompanied by simultaneous cannulation of the right atria and inferior vena cava.