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Cold brine infusion type radiofrequency ablation catheter

A technology of radiofrequency ablation and cold saline, applied in the direction of heating surgical instruments, etc., can solve problems such as loss of perfusion function and blockage of delivery channels

Inactive Publication Date: 2012-08-15
SHANGHAI MICROPORT EP MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the utility model patent is provided with multiple perfusion holes, there is only one cold brine delivery channel, which is also prone to blockage of the delivery channel, resulting in complete loss of perfusion function

Method used

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  • Cold brine infusion type radiofrequency ablation catheter
  • Cold brine infusion type radiofrequency ablation catheter
  • Cold brine infusion type radiofrequency ablation catheter

Examples

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Embodiment Construction

[0031] In order to further understand the present invention, preferred solutions of the present invention will be described below in conjunction with examples. These descriptions only illustrate the features and advantages of the present invention, but do not limit the protection scope of the present invention.

[0032] figure 1A schematic diagram showing the overall structure of a cold saline perfusion radiofrequency ablation catheter. The cold saline perfusion radiofrequency ablation catheter includes: a catheter body, including a main body section 5 and a bendable section 6 for entering the patient's body; a control handle 4 for realizing the bending of the bendable section 6; 6 the ablation electrode 8 on the distal end; the delivery channel 7 in the catheter for delivery of cold saline; the perfusion hole 9 for connecting to the delivery channel 7 and pouring cold saline into the ablation electrode 8 and the target site.

[0033] The control handle 4 is usually provided...

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Abstract

The invention provides a cold brine infusion type radiofrequency ablation catheter which comprises a catheter body, a control handle, an ablation electrode, brine transportation channels and infusion holes, wherein the catheter body comprises a main body section and a flexible section which are used for entering into the body of a patient, the control handle is used for realizing the bending of the flexible section, the ablation electrode is arranged on the far end of the flexible section, the brine transportation channels are used for transporting cold brine, and the infusion holes are used for being connected to the corresponding transportation channels and infusing the cold brine to the ablation electrode and a target part. The cold brine infusion type radiofrequency ablation catheter is characterized by being provided with more than two transportation channels, wherein each transportation channel is corresponding to at least one infusion hole.

Description

technical field [0001] The invention relates to a radiofrequency ablation catheter. More specifically, the present invention relates to a cold saline perfused radiofrequency ablation catheter. Background technique [0002] Radiofrequency ablation catheter is a kind of electrophysiological catheter, which is mainly used in cardiac surgery, and has also been applied to the treatment of hypertension in recent years. [0003] During the operation, the radiofrequency ablation catheter is delivered percutaneously to the target site where the lesion occurs. At this time, the ablation electrode at the distal end of the catheter and the diffusion electrode on the patient's back form a loop. Through the ablation electrode, the emitted radiofrequency energy is transmitted to the nearby diseased tissue, causing it to dehydrate and coagulate and lose its electrical conduction function, so as to achieve the purpose of treating tachyarrhythmia or treating high blood pressure. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
Inventor 郭俊敏杨谦谦陈诚朱福音史胜风孙毅勇陈高峰罗七一
Owner SHANGHAI MICROPORT EP MEDTECH CO LTD
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