INTRA-AORTIC BALLOON CATHETER

摘要

The intra-aortic balloon catheter comprises a catheter tube 8a having a fluid flow channel 9a for balloon expansion and a blood flow channel 10a for blood pressure measurement, and a balloon 2a attached to a distal end portion of said catheter tube 8a and having an expansion/contraction portion 3a to be expanded and contracted as a result of flowing a fluid in and out through said fluid flow channel 9a. The balloon 2a is joined with said catheter tube 8a at a distal end portion 4a and proximal end portion 5a of said balloon 2a. A blood inlet 31a is formed on said catheter tube 8a, so that inside of said blood flow channel 10a communicates with outside of said catheter tube 8a. The blood inlet 31a positions on the proximal end side of a boundary 50 with said expansion/contraction portion 3a on the proximal end portion 5a of said balloon 2a.