| 摘要 |
An articulating segment for a catheter includes a tube shaped member that is formed with a helical cut around the tube's axis. The cut extends through the member, between its outer and inner surfaces, and defines a pitch angle with the axis that can be varied according to the desired flexibility of the segment. A flexible coating is positioned on the outer surface of the tube to cover the helical cut and to provide a fluid-tight condition during articulation of the segment.
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