| 摘要 |
A guiding catheter for endovascular recanalization of occluded coronary arteries includes a polymeric tube having a main channel, for introduction of a dilatation balloon catheter or a stent along the guide. The polymeric tube has an auxiliary channel for providing overpressure to an elastic balloon(s) that is located on a distal end of the catheter. The elastic balloon(s) is in communication with the auxiliary channel and has at least one fixating protrusion on its outer surface. The catheter can have between 2 and 4 elastic balloons at its distal end, each elastic balloon having at least one fixating protrusion on its corresponding outer surface. The fixating protrusion is preferably in a form of a hemisphere, or is elongated in a direction of the longitudinal axis of the catheter. A height of the fixating protrusion is between 0.01 and 1 mm above the surface of the elastic balloon. A proximal end of the catheter includes a Y-shaped adapter for introduction of radiopaque agent or instruments into a first input of the Y-shaped adapter, and a second input of the Y-shaped adapter is connectable to a high pressure syringe capable of inflating the balloon(s).
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