Sievert H, Niemöller E, Bussmann W D, Kober G, Kaltenbach M
Abteilung für Kardiologie, Johann-Wolfgang-Goethe-Universität Frankfurt.
Z Kardiol. 1988 Aug;77(8):534-6.
Nonsurgical techniques for patent ductus closure require precise knowledge of ductus diameter, length and shape. Angiographic visualization, especially in adults, may be difficult, due to the high flow and overlap of the aorta or the pulmonary artery. We have developed a new catheter for visualizing a patent ductus without intraarterial injection of contrast dye. A smooth latex balloon is mounted near the tip of this catheter and when it is filled with dye, the balloon fits the contours of the ductus. Ductus diameter may be established by measuring the diameter of the balloon. Furthermore, the hemodynamic consequences of ductus closure may be observed with the balloon occluding the ductus.
非手术闭合动脉导管的技术需要精确了解导管的直径、长度和形状。血管造影显影，尤其是在成人中，可能会因主动脉或肺动脉的高血流量和重叠而变得困难。我们研发了一种新型导管，无需动脉内注射造影剂就能显示动脉导管。一个光滑的乳胶气球安装在该导管尖端附近，当气球充满染料时，它就能贴合导管的轮廓。动脉导管的直径可通过测量气球的直径来确定。此外，用气球阻塞动脉导管时，可观察到动脉导管闭合的血流动力学后果。
