本公开中，PTA（经皮血管成形术）涉及在导入导管作为通过线路导管按照需要气囊导管，优选高压型。 该导管具有流体通过位于近侧球囊元件的专用开口注入到治疗部位，将流体如造影增强剂和/或药物的特性。 在一些实施例中，流体输送和分散体（喷射）的通道和所述导丝中，使用至少一个单腔的一部分。 在一些这样的实施例中，阀机构被用来保持管腔的选择性地操纵，由此，所述流体是主要或排他地，近端引导比丝远端出口开口 通过色散孔分散。 系统技术领域

The present disclosure, PTA (percutaneous transluminal angioplasty) relates balloon catheter, preferably a high-pressure type, to facilitate the implementation catheters as an over the wire catheter as needed. The catheter has a characteristic that the fluid is injected into the treatment site through a dedicated opening located proximal to the balloon member, introducing a fluid such as contrast enhancing agents and / or drugs. In some embodiments, for the passage of fluid displacement and dispersion (infusion) and the guide wire, at least a part of a single lumen is used. In some such embodiments, the valve mechanism is used to maintain the selective manipulation of the lumen, whereby the fluid is predominantly or exclusively, the guide proximal to the wire distal outlet opening through a distributed aperture part dispersed.
.BACKGROUND