Ablation device capable of achieving discharge between electrodes

Abstract

The invention relates to the field of ablation, and particularly relates to an ablation device capable of achieving discharge between electrodes which can be used for ablating focus tissue in a human body. The ablation device includes a tube; a section at a far end of the tube is a far end tube; electrodes are arranged on the far end tube; the electrodes include a positive electrode and a negative electrode, and the positive electrode and the negative electrode are arranged separately; opposite positions of the positive electrode and the negative electrode are configured to contact one focus tissue at the same time; the positive electrode and the negative electrodes have a mapping function, and can mutually issue stimulation signals to find the focus part. The ablation device achieving discharge between the electrodes is targeted and controlled, and can reduce damage to the human body.

Description

technical field [0001] The invention relates to the field of ablation, in particular to an ablation device for interelectrode discharge. Background technique [0002] Cardiac arrhythmia is one of the common arrhythmia diseases in the world, and radiofrequency ablation with catheter has been widely used in the treatment of such diseases in clinical practice. At present, the commonly used technology is to discharge the head electrode to the back plate. [0003] In the ablation catheter treatment, the catheter is inserted into the heart, and the distal end of the catheter is in contact with the inner wall of the heart. In this process, it is usually important to make the distal end of the catheter in good contact with the inner wall of the heart. At present, the commonly used method is through the impedance. and experience to judge whether it is well attached, and then energize the catheter to form a current between the catheter-human body-the back plate on the surface of the ...

AI Technical Summary

Problems solved by technology

[0004] As mentioned above, the current commonly used technology is to discharge the head-end electrode to the back plate, and perform ablation by controlling the current density. This method has the risk of difficult control of the current density and the risk of penetrating the wall due to high energy. risk to the organization;

[0005] During the ablation process, the excessive pressure of the ablation catheter may cause undesirable damage to the heart tissue, or even perforation of the heart wall, while the pressure that is too small cannot achieve the therapeutic purpose of complete ablation

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