| 摘要 |
PROBLEM TO BE SOLVED: To provide a cannula for insertion to a blood vessel which can minimize the cut open length of the vessel for insertion and is easy to apply force since it is not bent easily even in the case of inserting a blood vessel catheter, etc., of comparative large insertion resistance. SOLUTION: The cannula 1 is used as an auxiliary tool for smoothly inserting a blood vessel wire or a guide wire for sending blood to an extracorporeal circulation circuit, returning blood to the blood vessel from the extracorporeal circulation circuit and for other necessities by being inserted to the blood vessel. In the cannula 1, a tube front part 2 on an inserting side molded with soft resin and tapered toward a tip, a connecting tube intermediate part 3 molded with hard resin and having a branch tube 4 branched tilting by a prescribed angle toward a rear side from the middle and a tube rear part 5 molded with soft resin are integrally connected so as to be nearly straight line. |
