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Catheter ablation device and electrode radiofrequency ablation catheter

A radiofrequency ablation and electrode technology, applied in the field of catheters, can solve problems such as lack of perfusion effect, and achieve the effect of reducing flow difference and uniform flow

Active Publication Date: 2018-07-10
SHANGHAI MICROPORT EP MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the ablation catheter with multi-electrode arrangement at the distal end, there is still a lack of design that can improve the perfusion effect

Method used

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  • Catheter ablation device and electrode radiofrequency ablation catheter
  • Catheter ablation device and electrode radiofrequency ablation catheter
  • Catheter ablation device and electrode radiofrequency ablation catheter

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Embodiment Construction

[0035] The claimed subject matter is now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of claimed subject matter. It can be evident, however, that the subject matter may be practiced without these specific details.

[0036] The embodiment of the present invention describes a catheter ablation device and its radio frequency ablation catheter, which improves the perfusion effect by optimizing the design of the perfusion hole.

[0037] figure 1 A schematic diagram of a catheter ablation device and its radiofrequency ablation catheter according to an embodiment of the present invention is shown. refer to figure 1 As shown, the ablation device 100 has a radiofrequency ablation instrument 110 , a tail wire 120 , an operating handle 130 , an infusion tube 140 and an...

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Abstract

The invention relates to an electrode radiofrequency ablation catheter, which includes a ring segment and a plurality of electrodes. An annular segment is located at the distal end of the catheter, and a fluid perfusion channel is provided in the annular segment. A plurality of electrodes are arranged at intervals on the annular segment, and each electrode is provided with a plurality of small holes for fluid outflow, and the plurality of small holes communicate with the fluid perfusion channel through the perfusion holes. Wherein, it is assumed that the diameter of the perfusion hole corresponding to each electrode is d(n), n is the serial number of the electrode and the closer to the end of the catheter, the larger n is, and d(n) increases with the increase of n. Through this design, the flow difference of each perfusion hole can be reduced, so that the flow rate of each perfusion hole tends to be uniform.

Description

technical field [0001] The invention relates to a catheter, in particular to an electrode radiofrequency ablation catheter. Background technique [0002] Radiofrequency ablation catheter is a kind of electrophysiological catheter, which has been widely used in the treatment of arrhythmia in recent years. Generally speaking, the catheter includes two functions of mapping electrical signals and radiofrequency ablation. After the catheter enters the heart, the electrical signal is first mapped to determine the abnormal pathway or abnormal electrical excitation point, and then these abnormal electrical signal pathways are ablated and isolated, so as to achieve the purpose of treatment. [0003] Atrial fibrillation is a common arrhythmia in which the myocardium loses its normal and regular diastolic movement and replaces it with rapid and uncoordinated weak peristalsis, thereby causing the atrium to lose its normal contraction. In 1997, Professor of Cardiology Michelle Aishagal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/12
Inventor 张清淳梁波郭小静王慧孙毅勇谭家宏山鹰
Owner SHANGHAI MICROPORT EP MEDTECH CO LTD
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