Radiofrequency ablation catheter for distribution of heat exchange mediums, lung radiofrequency ablation system, control method and control device

A technology of heat exchange medium and radiofrequency ablation, which is applied in parts of surgical instruments, heating surgical instruments, medical science, etc., and can solve problems such as damage to surrounding organs, scab formation, and stop of ablation

Pending Publication Date: 2019-08-02
HANGZHOU BRONCUS MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The inventor found that when the existing radiofrequency ablation catheter for the lungs is working, the temperature of the electrode site rises too fast, and the tissue near the electrode becomes dry and char

Method used

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  • Radiofrequency ablation catheter for distribution of heat exchange mediums, lung radiofrequency ablation system, control method and control device
  • Radiofrequency ablation catheter for distribution of heat exchange mediums, lung radiofrequency ablation system, control method and control device
  • Radiofrequency ablation catheter for distribution of heat exchange mediums, lung radiofrequency ablation system, control method and control device

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Embodiment Construction

[0086] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0087] In order to better describe and illustrate the embodiments of the application, reference may be made to one or more drawings, but additional details or examples used to describe the drawings should not be regarded as an invention of the application, the presently described implementation limitations on the scope of any of the examples or preferred modes.

[0088] It should be noted that when a component is said to be "connected" to another component, it may be directly connec...

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Abstract

The invention relates to a radiofrequency ablation catheter for distribution of heat exchange mediums, a lung radiofrequency ablation system, a control method and a control device. The radiofrequencyablation catheter comprises an electrode, wherein the electrode is provided with a heat exchange medium flow passage; the heat exchange medium flow passage is a cavity which is positioned in the electrode; the heat exchange medium flows out of an opening hole which is formed in the wall of the cavity; a balance device is arranged on the electrode; a wetting hole is formed in the balance device, and is communicated with the heat exchange medium flow passage; the heat exchange medium which is outputted by the heat exchange medium flow passage is distributed by the balance device, and flows out.The radiofrequency ablation catheter has the advantages that the normal saline is filled into the ablation tissues by the electrode, so that the electric conductivity and heat conductivity of the ablation tissues are improved; the balance of impedance is maintained, the impedance is maintained under the relative stable state, and the radiofrequency energy can be continuously outputted.

Description

technical field [0001] The present application relates to the field of tumor minimally invasive ablation therapy, and in particular to a radiofrequency ablation catheter that facilitates the distribution of heat exchange medium, a lung radiofrequency ablation system, and a control method and control device. Background technique [0002] Lung cancer is one of the most common malignant tumors. In clinical treatment, surgical resection is still the first choice for the treatment of early lung cancer. However, for lung cancer patients who are older, weaker, have poor cardiopulmonary function, or have complications, they are not suitable or tolerate conventional surgical resection. Therefore, many local treatment methods such as minimally invasive tumor ablation have emerged. Minimally invasive ablation of lung tumors includes radio frequency ablation (RFA), cryoablation, microwave ablation, etc. Among them, only radio frequency ablation is included in the clinical guidelines o...

Claims

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Application Information

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IPC IPC(8): A61B18/14A61B18/12
CPCA61B18/12A61B18/1492A61B2018/00714A61B2018/00791A61B2018/00577A61B2018/00541A61B2018/00875A61B2018/00589A61B2018/00011A61B2018/00755A61B2018/00898A61B2018/00029A61B2018/00648A61B2018/00708A61B2018/00065A61B2218/002A61B2034/2051A61B2018/00815A61B2018/00666A61B2018/00744A61B18/1233A61B2018/00142A61B2018/00797
Inventor 徐宏周华珍王礼明江松苏晨晖
Owner HANGZHOU BRONCUS MEDICAL CO LTD
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