Ellis J H, Brodeur F J, Marx M V, Sheffner S E
Department of Radiology, University of Michigan Medical Center, Ann Arbor 48109-0030.
Radiology. 1992 Jun;183(3):871-3. doi: 10.1148/radiology.183.3.1584949.
A superelastic guide wire was used (after failure of other methods) as a loop snare to retrieve a foreign body from the ureter in three patients. In vitro comparison of the expansion capability of the superelastic guide wire and that of the standard retrieval wire showed that the superelastic wire forms larger loops within an elastic space. Also, because of less frictional resistance and its ability to be formed into stiffer loops, the superelastic wire resists kinking and is easier to manipulate than the standard wire.
在其他方法均告失败后，使用了一根超弹性导丝作为圈套器，从三名患者的输尿管中取出异物。超弹性导丝与标准取出导丝的体外扩张能力比较显示，超弹性导丝在弹性空间内形成的环更大。此外，由于摩擦阻力较小且能够形成更硬的环，超弹性导丝比标准导丝更不易扭结，操作起来也更容易。
