EINRICHTUNG ZUR LOKALISIERUNG EINES BLUTGEFÄSSES

摘要

A device for determining the location of the wall of an artery in a living being via a percutaeous incision or puncture. The device comprises an elongated tubular member having a distal end portion, a proximal end portion, and a passageway extending therethrough for receipt of a guide wire. The device is inserted through an introducer sheath having an open distal end into said percutaneous incision or puncture over said guide wire so its distal end portion is located within the artery and its proximal end portion is located outside of the body of the being. The has two liquid entrance ports in its distal end portion and one liquid outlet port in its proximal end portion. The liquid entrance ports and outlet port are in communication with each other through the device's passageway. When the device is positioned within the introducer sheath and the entrance ports are located beyond the open distal end of the introducer sheath and within the artery blood flows into the entrance ports through passageway and out through the outlet port so that it can be observed. The device and introducer sheath are then retracted until the flow of blood out of the outlet port stops, thereby indicating the location of the artery wall.