| 摘要 |
A catheter and procedure for its use are provided. The catheter includes an elongated proximal shaft that is made of flexible metallic tubing which is an alloy including nickel and titanium as the principal components. The elongated shaft is virtually kink-free when used, the use being at temperatures below the transition temperature or the temperature at which reversion to an austentic state is complete, the temperature being below warm-blooded body temperature. Preferably, a more atraumatic distal shaft is secured to the distal end of the elongated metallic tubing proximal shaft. During use, the catheter exhibits superior torsional strength, is virtually kink-free, and provides enhanced fluid flow due in large part to an exceptionally thin-walled and microbore characteristic of the metallic tubing.
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