Magnetic navigation cold saline infusion frequency ablation catheter

Abstract

The invention relates to the field of medical equipment, and discloses a magnetic-navigation cold saline perfusion radiofrequency ablation catheter. The magnetic-navigation cold saline perfusion radiofrequency ablation catheter comprises a saline tube, a control handle and a catheter body, wherein a near end of the catheter body is connected with the control handle; a far end of the catheter body is provided with an ablation portion; the catheter body comprises a main tube and an ablation tube; the ablation portion comprises an ablation electrode, a first magnetic ring and a deforming tube; the ablation electrode comprises an electrode shell; a cavity is formed in the electrode shell along the length direction; the electrode shell is provided with a liquid injection hole which is connected with the cavity; a near end of the electrode shell is in inlaid connection with a far end of the ablation tube; the deforming tube and the first magnetic ring are sequentially nested in the ablation tube; a far end of the first magnetic ring is nested in the cavity of the electrode shell; a near end of the saline tube is connected with the control handle; a far end of the saline tube extends into the cavity along the catheter body; the electrode shell is connected with the control handle through an ablation electrode wire; and a temperature sensor which is connected with the control handle is arranged in the inner cavity of the far end of the first magnetic ring. By using the magnetic-navigation cold saline perfusion radiofrequency ablation catheter, the safety of a physiological surgery can be improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a magnetic navigation cold saline perfusion frequency ablation catheter. Background technique [0002] Radiofrequency ablation catheters have been widely used in medical practice, and are mainly used in the treatment of diseases such as atrial fibrillation and arrhythmia. The method of use is to insert the electrophysiological catheter into the heart through the blood vessel through femoral artery or radial artery puncture with the assistance of X-ray machine, and perform point stimulation to map the cardiac electrical signal to determine the type of cardiac lesion, and then perform radiofrequency ablation The catheter finds areas of the heart with abnormal electrical activity for radiofrequency ablation. [0003] At present, this kind of ablation operation is performed manually by experienced doctors, but because doctors have to do a lot of operations in their careers, the existi...

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Problems solved by technology

[0003] At present, this kind of ablation operation is performed manually by experienced doctors, but because doctors have to do a lot of operations in their careers, the existing radio frequency ablation catheters lack navigation devices, making the operation speed of doctors slow and the operation efficiency low , so that X-rays will cause great harm to doctors, so there is an urgent need in the market for a radiofrequency ablation catheter that can reduce X-ray exposure for doctors

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