Interelectrode discharge mapping ablation catheter, ablation device and device using method

Abstract

The invention discloses an interelectrode discharge mapping ablation catheter and a using method thereof, wherein the catheter comprises a catheter body; electrodes are arranged on the outer surface of the catheter body; lead wires are arranged in the catheter body; the lead wires are electrically connected to the corresponding electrodes; the two or more electrodes include at least one radio-frequency current transmitting electrode and at least one radio-frequency current receiving electrode; and the electrodes are arranged at the ends of the catheter body. According to the ablation catheter provided by the invention, the at least two electrodes are arranged on the ablation catheter, so that radio-frequency current, which is transmitted to human tissues by virtue of the electrodes on the ablation catheter, passes through the electrodes, the human tissues and other electrodes, so that at least one closed loop is defined. Therefore, the ablation catheter which can implement transverse heating on the human tissues, in comparison with the prior art which can implement longitudinal heating, is larger in heating area; and ablation of focus tissues in a large area can be accelerated, ablation surgical time can be saved and ablation efficiency can be improved; therefore, patient's pain can be relieved and surgical risk can be reduced.

Description

[0001] This application claims Chinese patent application 2016101288636 (filing date, March 7, 2016) as priority. technical field [0002] The invention relates to the technical field of medical radiofrequency ablation, in particular to an interelectrode discharge mapping ablation catheter, an ablation device, and a method for using the device. Background technique [0003] The human body is a complex structure composed of many organic and inorganic substances. The body fluid contains a large number of dielectrics, such as ions, water, colloidal particles, etc. The human body mainly relies on the movement of ions to conduct current. Under the action of high-frequency alternating current, the ion concentration change direction changes back and forth with the current direction as positive and negative half cycles. Under high-frequency oscillation, the ions between the two electrodes move rapidly along the direction of the electric force line, gradually changing from a moving s...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a mapping ablation catheter, an ablation device, and a method for using the device in view of the problem that the ablation area of ​​the current ablation catheter is small.

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