Abstract
Endovascular microtools refers to catheter-like systems with microdevices that are put into arteries and veins. An intravascular micro active catheter system is the most advanced type of endovascular microtool. It consists of an active bending catheter and some functional catheters, such as intravascular micro ultrasound and micro drug infusion catheters. These systems are widely under development and commercialization. In this paper, we present a brief overview of the intravascular micro active catheter, followed by an explanation of the microsystems that have been developed at Seoul National University. This system consists of an active bending catheter, a micro drug infusion catheter and an ultrasound scanning catheter. All these systems show the proper functions for in vivo and in vitro tests.
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