| 摘要 |
The present invention is a delivery catheter (10) for a radially expandable intraluminal stent (12). The delivery catheter comprises an elongate outer tube (14) defining proximal, distal ends, and a lumen (20) extending longitudinally therethrough. In addition to the outer tube the delivery catheter includes an elongate inner tube (24) defining proximal, distal ends, and a guide wire lumen (30) extending longitudinally therethrough. The inner tube is movably disposed within the lumen of the outer tube. The delivery catheter further includes a flexible deployment sleeve (40) having a first end attached to the distal end of the outer tube, and a second end attached to the inner tube at a location proximal to the distal end thereof. The pressurization of the lumen of the outer tube with a fluid causes fluid pressure to be exerted on the sleeve in a manner facilitating the movement, and the inner and outer tubes relative to each other such that a distal portion of the inner tube extending distally from the second end of the sleeve is deployed from the distal end of the outer tube.
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