| 摘要 |
A multi lumen catheter (1) including an inner tube (3,4) having a front tip (42), an outer tube (2), a tube or lumen (41) for inserting a guide wire, a blood extraction lumen (21) and a blood return lumen (31) which are formed in the outer tube (2) and inner tube (3,4), respectively, or both in the outer tube (2), wherein the inner tube (3,4) is inserted in the outer tube (2) and allowed to slide relative thereto, and the front tip (42) is jointed to the front end of the outer tube (2) to shut off communication of the lumens with the exterior. A multi-lumen catheter with balloon (12) includes a balloon provided on a tabular body (52) at a front end thereof, a blood return port (81) and a blood extraction port (71) provided in the tubular body (52) on opposite sides of the balloon (12), and an outer tube (50) slidable on the tubular body (52) to close the blood extraction and blood return ports (71,81) and the balloon (12). <IMAGE> <IMAGE> |
