A large area discharge ablation device

A large-area, ablation catheter technology, applied in the field of medical radiofrequency ablation, can solve the problems of small ablation area and complicated operation of ablation device, and achieve the effects of good safety performance, convenient operation and convenient processing

CN107157577BActive Publication Date: 2019-12-03SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-12-03

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Abstract

The invention relates to the technical field of medical radio-frequency ablation, and in particular to a large-area discharge ablation device. The large-area discharge ablation device comprises an ablation catheter and a guide tube, wherein an ablation handle is arranged on a guide handle in a sliding mode; the ablation catheter comprises a catheter body; the catheter body comprises a solution cavity; at least two conductive parts, which are used for implementing electric conduction, are arranged at the end, which stretches into a human body, of the catheter body; and radio-frequency current, which is applied to the conductive parts, sequentially passes through one of the conductive parts, human tissues and the other conductive part, so that at least one closed loop is defined; therefore, stress on the ablation catheter can be monitored in an ablation process in real time, and an ablation area can be increased; with the application of an electrical stimulation method, a focus tissue can be searched; and meanwhile, operations can be facilitated.
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Description

technical field

[0001] The invention relates to the technical field of medical radiofrequency ablation, in particular to a large-area discharge ablation device. Background technique

[0002] The human body is a complex structure composed of many organic and inorganic substances. Body fluids contain a large number of dielectrics, such as ions, water, and colloidal particles. The human body mainly relies on ion movement to conduct current. Under the action of high-frequency alternating current, the change direction of ion concentration changes back and forth with the current direction as positive and negative half-cycles. Under the high-frequency oscillation, the ions between the two electrodes move rapidly along the direction of the electric force line, and gradually change from a moving state to a vibrating state. Due to the different sizes, masses, charges and moving speeds of various ions, the ions rub against each other and collide with other particles to generate biothe...

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Embodiment Construction

[0058] The present invention will be described in detail below with reference to the accompanying drawings.

[0059] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0060] like Figures 1 to 9 As shown, a large-area discharge ablation device includes an ablation catheter 14 for ablation and a guide tube 15 for guiding the direction of the ablation catheter 14. The ablation catheter 14 is slidably arranged in the lumen of the guide tube 15, The guide tube 15 includes a guide handle 161 that is convenient for human operation, the guide handle 161 includes a guide tube knob 16, and the ablation catheter 14 includes an ablation handle 141 that is...