Bonzel T, Wollschläger H, Kasper W, Meinertz T, Just H
University Medical Clinic, Dept. of Cardiology, Freiburg, West Germany.
Z Kardiol. 1987;76 Suppl 6:119-22.
The sliding rail technique is a new technique for intravascular instrumentation, especially coronary stenosis dilatation. The so-called monorail balloon catheter is the first device which can be used according to this technique. The monorail catheter has a single lumen shaft and only a short central tube within the distal balloon part. With the guidewire inserted into the tube, the balloon can be advanced or retracted on the guidewire as on a sliding rail. The most relevant improvements for coronary dilatation are steerability, contrast flow and rapid and easy exchangeability of balloon catheters and other intracoronary devices. These characteristics are felt to result in a more simple and time- and fluoroscopy-saving dilatation procedure. A special transfusion catheter may also improve procedural safety. The first clinical results in 69 patients with a success rate of 96%, an emergency bypass rate of two patients (one infarction) and a stenosis improvement of 58% confirm the theoretically conceived advantages.
滑轨技术是一种用于血管内器械操作的新技术，尤其适用于冠状动脉狭窄扩张。所谓的单轨球囊导管是第一种可根据该技术使用的器械。单轨导管有一个单腔轴，在远端球囊部分仅有一根短的中心管。将导丝插入该管后，球囊可像在滑轨上一样在导丝上前进或后退。对于冠状动脉扩张而言，最相关的改进包括可操控性、造影剂流动以及球囊导管和其他冠状动脉内器械的快速且简便的可交换性。这些特性被认为能使扩张过程更简单，节省时间和透视时间。一种特殊的输血导管也可能提高操作安全性。69例患者的首批临床结果显示，成功率为96%，2例患者（1例梗死）进行了急诊搭桥手术，狭窄改善率为58%，证实了理论上设想的优势。
