| 摘要 |
A catheter with a tip manipulation feature, comprising an outer tube of flexible resilient material having a proximal end and a distal end terminating in a tip. The interior of the tube is divided into first and second lumens extending lengthwise of the tube, the first lumen being adapted for passage of fluid such as blood therethrough. A pull line extends lengthwise of the tube inside the second lumen and exits the second lumen through an opening in the tube wall proximal to the tip of the tube. From this opening the pull line extends along the tube wall on the outside of the tube in a direction toward the tip of the tube and is attached to the outside of the wall of the tube adjacent the tip of the tube whereby tensioning of the pull line bends the tip of the tube thereby to manipulate it into a desired position. The tip resiliently returns to its original unstressed shape when the tension on the pull line is released.
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