| 摘要 |
A coaxial balloon catheter (50) includes an elongated inner tube (14), an elongated outer tube (16) residing on the exterior of the elongated inner tube, and a balloon (20) having a distal end (22) attached to a first portion of the elongated outer tube and having a proximal end (21) attached to a second portion of the elongated outer tube. This arrangement prevents the balloon from telescopingly buckling when being pushed across a narrow passage.
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