| 摘要 |
A multi-layered catheter is provided, having a proximal end, a distal end, and a lumen extending therethrough. The catheter can have various sections of different flexibility extending distally along the length of the catheter. The catheter can have four layers along a proximal portion, and three layers along a distal portion. In some embodiments, the layers can comprise at least a stainless steel coil and a stainless steel braid. The catheter can exhibit both flexibility as well as kink resistance.
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