| 摘要 |
A balloon catheter including an inflatable balloon affixed to a catheter. The proximal end of the balloon is affixed to the outer wall of the catheter so as to provide an air tight seal there between. A slip joint is formed between the distal end of the catheter and the distal end of the balloon to permit the distal end of the balloon to axially move or translate with respect to the distal end of the catheter. The slip joint allows the axial length of balloon to change during inflation or deflation without transferring tensile or compressive forces between the balloon and the catheter, thereby preventing transverse creases from forming in the surface of the balloon and preventing the catheter from bowing. Alternatively, the catheter may be terminated so as to not contact the distal end of the balloon, or the catheter can be segmented so that separate catheter parts are connected to each end of the balloon, thereby eliminating the slip joint altogether.
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