| 摘要 |
A balloon catheter has a retractable sheath that can quickly and easily adjust the length of the inflated portion of the balloon and a locking mechanism for selectively retaining the sheath in the desired position for use. The balloon catheter assembly includes an inner member and an outer member that is disposed about the inner member. The outer member includes one or more inflatable balloons. A sheath is disposed about the outer member for movement relative to the balloon so as to selectively expose some or all of the balloon for inflation. Lastly, the balloon catheter assembly includes a clamp for selectively securing the sheath at a desired position relative to the balloon. |
