Intracardiac ultrasound catheter with ablation and mapping functions

Abstract

The invention relates to the technical field of cardiac electrophysiology ablation catheters, and discloses an intracardiac ultrasound catheter with ablation and mapping functions, which comprises an ultrasound catheter assembly, the ultrasound catheter assembly comprises an ultrasound catheter, an adjuster is mounted at the middle end of the ultrasound catheter, one end of the adjuster is fixedly connected with a control handle, and the other end of the adjuster is fixedly connected with a probe. An adjusting knob is arranged on the outer side wall of the control handle, and a conversion connector is installed at the tail end of the control handle. According to the catheter for the electrophysiological surgery, only one blood vessel can be punctured, in addition, the ultrasonic catheter and the ablation catheter are arranged together, the necrosis and edema conditions of cells after ablation in the surgery can be monitored in real time, the ablation catheter can more accurately ablate abnormal parts, and the catheter for the electrophysiological surgery integrates the functions of intracardiac ultrasound, three-dimensional reconstruction and ablation, so that the ablation surgery is more convenient and faster; and in addition, the ablation curative effect is quantitatively evaluated in real time during the operation, so that the ablation treatment is more accurate, and the postoperative recurrence rate can be reduced.

Description

technical field [0001] The invention relates to the technical field of cardiac electrophysiological ablation catheters, in particular to an intracardiac ultrasonic catheter with ablation and mapping functions. Background technique [0002] Atrial fibrillation (abbreviated as atrial fibrillation) is the most common cardiac arrhythmia. The incidence of atrial fibrillation continues to increase with age, and it can reach 10% of people over 75 years old. The frequency of atrial fibrillation in atrial fibrillation reaches 300-600 beats per minute, and the heart rate is fast and irregular, sometimes up to 100-160 beats / min, the heart rhythm is absolutely irregular, the atrium loses effective contraction, and the heart will lose 25-30% of its ejection function. [0003] Cardiac catheter ablation has become the most effective method for the treatment of tachyarrhythmia. Cardiac radiofrequency ablation is to send the ablation catheter into a specific part of the heart cavity throug...

AI Technical Summary

Problems solved by technology

[0004] Intracardiac ultrasound catheters are used in the existing cardiac electrophysiological surgery. The ultrasound catheter is usually placed in the left femoral vein, and the ablation catheter is usually placed in the right femoral vein. The puncture process also increases the chance of postoperative complications

In addition, under the limitation of current ablation equipment, the ability to monitor the formation and quantification of ablation damage is still limited.

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