BALLOON DILATATION CATHETER WITH ADVANCEABLE NON-REMOVABLE GUIDE WIRE

• Main Authors: FRISBIE, JEFFREY STEVEN, SAMSON, WILFRED JOSEPH
• Format: Patent
• Language: English
• Published: 11.04.1990
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

A balloon dilatation catheter (10) with an advanceable non-removable guide wire (26) having a flexible tubular member (11) with first (13) and second (17) lumens extending therethrough. An inflatable balloon (18) is carried by the distal extremity of the tubular member (11) so that the first lumen (13) extends through the balloon (18) and is out of communication with the interior of the balloon (18) and in which the second lumen (17) is in communication with the interior of the balloon (18). The guide wire (26) is slidably mounted in the first lumen (13). A coil-like tip (28) is secured to the distal portion of the guide wire (10) and has a cross-sectional area which is greater than that of the cross-sectional area of the first lumen (13) and prevents removal of the guide wire through the first lumen (13). The guide wire (26) is capable of being advanced longitudinally of the first lumen (13) so that the coil-like tip (28) of the guide wire can be advanced ahead of the balloon to facilitate the positioning of the balloon (18).