Rapid linear radio-frequency ablation electrode

Abstract

The invention discloses a rapid linear radio-frequency ablation electrode, which aims at solving the technical problem of rapid and continuous ablation treatment. In the invention, an electrode tube consists of an ablation section formed by triangular bottom sides and a manipulation section formed by two bevel sides, wherein the ablation section is provided with annular electrodes at intervals; the electrodes are provided with temperature sensors; the annular electrodes is connected with a radio-frequency apparatus through leads and the temperature sensors are connected with the radio-frequency apparatus through temperature sensor leads; a bandlet made of elastic material is arranged in the center of the ablation section; the ablation section formed by the triangular bottom sides is expanded outward to be an arc shape by the bandlet; the length of the bandlet is extended to the junction of two triangular bevel sides; two end parts of the two bevel sides are connected with pull wires; and the other ends of two pull wires are fixed on a control handle. Compared with the prior art, the invention can reliably and continuously carry out vein isolation, reduce the relapse rate of the auricular fibrillation treatment, increase the continuousness of eliminating scar lines compared with single electrode, completely isolate ablation regions, keep ablation rings integral, has convenient operation and ensures that the operation is rapidly completed.

Description

technical field [0001] The invention relates to a medical device, in particular to an ablation electrode guide for treating atrial fibrillation. Background technique [0002] Since the French scholar Haissaguerre found that 90% of atrial fibrillation originated around the pulmonary vein ostium in 1999, catheter radiofrequency ablation for atrial fibrillation has made great progress in recent years, but it also faces many confusions. So far, neither China nor the United States ACC / AHA None of the guidelines for the management of atrial fibrillation made specific recommendations on the methods and procedures of catheter ablation of atrial fibrillation, which reflects that catheter ablation of atrial fibrillation is not yet fully mature. At present, doctors (scholars) use ring-shaped mapping electrodes to map the upper and lower pulmonary vein ostia when performing catheter radiofrequency ablation for atrial fibrillation; use cold saline to infuse the radiofrequency ablation ca...

AI Technical Summary

Problems solved by technology

However, even in some well-known electrophysiological centers in Europe and America, the success rate of atrial fibrillation ablation is still low, and the recurrence rate is as high as 20%-30%

The reason is that the existing ablation catheter is usually a quadrupole ablation catheter, and only the first pole has the ablation function, so it can only be ablated point by point. The surgeon uses the three-dimensional mapping system to ablate one point during ablation, and push the catheter to ablate the next point , but the continuity of the ablation line cannot be guaranteed, and the pulmonary vein potential cannot be completely isolated, resulting in incomplete surgery. Now the successful treatment of atrial fibrillation catheter ablation mainly depends on the level and experience of the surgeon

Images