2 3 CATHETER DEVICE ABSTRACT 5 CATHOTEI DEVICE, COMPF ISING A HOLLOW CATHETER HUB (1) WHOSE DISTAL END IS CONNECTABLE TO A CATHETER (2) AND AT WHOSE PILOXIMAL END A CONNECTING MEANS (3) FOR AN ADDITIONAL MEANS IS PROVIDED, A PORT @4) AT THE CATHETER HUB (1) WHICH BRANCHES OFF BETWEEN THE PROXIMAL AND THE DISTAL ENDS, A FUST VALVE MEMBER (5) IN THE CATHETER HUB (1) WHICH CLOSES THE PORT (4) IN THE [CADY POSITION AND UNBLOCKS THE CONNECTION BETWEEN THE PORT AND THE CATHETER WHEN EXTEMAL '10 PRESSURE IS APPLIED TO THE PORT, AND A SECOND VALVE MEMBER (6) WHICH PIEVENTS THE EMERGENCE OF BLOOD FIOM THE CATHETER HUB IN THE PROXIMAL DIRECTION, WHEREIN THE SECOND VALVE MEMBEI (6) IS F6IMED AS A TWO-WAY VALVE SUCH THAT THIOUGHFIEW IS POSSIBLE IN BOTH DIIECTIONS- FIG. I
