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Radiofrequency ablation catheter and system

A technology of radiofrequency ablation and ablation catheter, applied in the field of medical devices, can solve the problems of inaccurate electrode position, inability to penetrate into the lungs, limited bronchial range, etc., and achieve the effect of overcoming the inaccurate position

Inactive Publication Date: 2017-01-25
CHANGZHOU LUNGHEALTH MEDTECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the range of bronchi that can be reached by the bronchoscope is limited, and it is impossible to go deep into the lesions around the lungs, and the respiratory movement of the lungs will also cause changes in the location of the lesions, resulting in inaccurate electrode placement through the bronchoscope

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  • Radiofrequency ablation catheter and system
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  • Radiofrequency ablation catheter and system

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Embodiment Construction

[0058] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of this 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.

[0059]Radiofrequency ablation catheter is an important part of radiofrequency ablation, and has been widely used in various medical practices, such as the treatment of liver, kidney, lung and other solid tumors. However, the existing radiofrequency ablation catheter itself has no positioning function, and needs to be placed through a traditional bronchoscope, and the depth ...

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Abstract

The embodiment of the invention discloses a radiofrequency ablation catheter and system. The radiofrequency ablation catheter comprises a catheter body, a positioning sensor fixedly arranged inside the catheter body and ablation electrodes fixedly arranged on the outer surface of the catheter body and used for generating radiofrequency currents. The positioning sensor responds to a positioning magnetic field of space of the positioning sensor to generate current signals, and outputs the current signals to a control system outside the ablation catheter so that the control system can determine the position of the radiofrequency ablation catheter. By means of the radiofrequency ablation catheter and system in the embodiment, the ablation electrodes can be more accurately put at the position of a focus.

Description

technical field [0001] The present application relates to the field of medical devices, in particular to a radiofrequency ablation catheter and system. Background technique [0002] Radiofrequency ablation is a minimally invasive tumor in situ treatment technology. Its principle is: the high-frequency alternating current of the electrode is injected into the lesion tissue, and the ions in the lesion tissue change with the change of the current direction, and the lesion tissue generates high temperature. At a certain temperature (generally 60°C), the lesion tissue dies, and the tumor tissue is finally coagulated and inactivated. [0003] At present, radiofrequency ablation is more commonly used, and the ablation electrode is directly inserted into the tumor through percutaneous puncture under the guidance of imaging techniques such as ultrasound or computed tomography (CT). For lung tumors, the ablation electrode is inserted into the tumor by percutaneous puncture, which has...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B18/14A61B34/20
CPCA61B18/12A61B18/1206A61B18/14A61B18/1485A61B2018/00011A61B2018/00541A61B2018/00648A61B2018/00589A61B2018/126A61B2018/1253A61B2018/1405A61B2018/00023A61B2018/00166A61B2018/00214A61B2018/00577A61B2018/1467A61B2018/1475A61B34/20A61B2034/2051A61B2090/0818A61B2018/00642A61B2018/0072A61B2018/00791A61B18/1492A61B18/1477A61B2018/1432A61B2018/143A61B2017/00991A61M25/0127A61B5/150557
Inventor 刘弘毅马家骏
Owner CHANGZHOU LUNGHEALTH MEDTECH CO LTD
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