RADIOFREQUENCY ABLATION CATHETER HAVING MESHED TUBULAR STENT STRUCTURE AND AN APPARATUS THEREOF

摘要

A radiofrequency ablation catheter having a meshed tubular stent structure and an apparatus thereof, comprising a meshed tubular stent provided at the front extremity of the catheter. The meshed tubular stent comprises a meshed tube (1). Both extremities of the meshed tube converge to constitute a distal extremity and a proximal extremity of the meshed tubular stent. The middle section of the meshed tubular stent has a contracted state and an expanded state. One or more electrodes (2) are fixed onto the middle section of the meshed tubular stent. The meshed tubular stent in the radiofrequency ablation catheter has improved extendibility and provides great coverage for blood vessels of different thicknesses and curved blood vessels. When the meshed tubular stent is expanding in blood vessels of different thicknesses of 4-12 mm, all of the electrodes (2) can be attached to wall. At the same time, when the meshed tubular stent is expanding in curbed blood vessels, attachment to wall is also ensured for all of the electrodes.