Radiofrequency ablation electrode device

An electrode device and radio frequency ablation technology, applied in the field of medical devices, can solve the problems of patients' discomfort and high radio frequency energy consumption, and achieve the effects of shortening operation time, blocking the conduction of radio frequency current, and improving the efficiency of thermal damage

Inactive Publication Date: 2016-12-21
MEDSPHERE INT SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of the prior art, the present invention provides a radio frequency ablation electrode device to solve the problem that the radio frequency energy consumption is large during the working process of the radio frequency ablation electrode device, and the radio frequency energy will accumulate in the normal tissues of the human body, causing the patient to feel uncomfortable

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Embodiment 1

[0049] refer to Figure 1~4 , this embodiment provides a radiofrequency ablation electrode device, including an electrode sleeve 100, a probe tube 200, a first electrode bundle 301, a second electrode bundle 302, and an operating handle 500; the electrode sleeve 100 is fixed on the operating handle 500, the probe tube 200 is set in the inner cavity of the electrode sleeve 100, and can move relative to the electrode sleeve 100 along the inner cavity of the electrode sleeve 100; the first electrode bundle 301 is fixed on the probe tube 200 The distal end of the second electrode bundle 302 is fixed on the proximal end of the probe tube 200; the first electrode bundle 301 is insulated from the second electrode bundle 302; the first electrode bundle 301 is loaded with a first voltage, The second electrode bundle 302 is loaded with a second voltage, the first electrode bundle 301 and the second electrode bundle 302 act on a human body load, and the human body load is human diseased ...

Embodiment 2

[0058] Such as Figure 5 As shown, the distance from the connection point between the first electrode bundle 301 and the probe tube 200 to the connection point between the second electrode bundle 302 and the probe tube 200 in this embodiment is 3-5 cm, and the first electrode bundle is fixed on the probe tube. The far end of the tube, the second electrode bundle is fixed on the proximal end of the probe tube, the connection point between the first electrode bundle 301 and the probe tube 200 and the connection point between the second electrode bundle 302 and the probe tube 200 are provided with insulation Component 201, the insulating component 201 insulates the first electrode bundle 301 and the second electrode bundle 302 from each other; the first electrode bundle 301 is loaded with a first voltage, and the second electrode bundle 302 is loaded with a second voltage, so The first electrode bundle 301 and the second electrode bundle 302 act on the human body load, and the hu...

Embodiment 3

[0068] refer to Figure 6 The difference between the present embodiment and the second embodiment is that the first electrode bundle 301 and the second electrode bundle 302 of the present embodiment have a trumpet-like shape after deployment, and the electrode needles of the first electrode bundle 301 and the second electrode bundle 302 are Hollow needle-like structure, the hollow cavity of the electrode needle and the hollow cavity of the probe tube 200 in this embodiment are equipped with temperature-measuring thermocouples, so as to provide real-time feedback of the temperature of the heat-damaged area, and timely adjust the radio frequency ablation electromagnetic field according to the temperature feedback. Frequency, to achieve precise control of radiofrequency ablation temperature.

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Abstract

The invention relates to a radiofrequency ablation electrode device. The radiofrequency ablation electrode device comprises an electrode casing tube, a probe tube, a first electrode beam, a second electrode beam and an operating handle; the electrode casing tube is fixed to the operating handle, and the probe tube is arranged in an inner cavity of the electrode casing tube and can move along the inner cavity of the electrode casing tube relative to the electrode casing tube; the first electrode beam is fixed at the far end of the probe tube, and the second electrode beam is fixed at the near end of the probe tube; the first electrode beam and the second electrode beam are insulated; a first voltage is loaded to the first electrode beam, a second voltage is loaded to the second electrode beam, and the first electrode beam and the second electrode beam act on human body lesion tissue; a current loop is formed among the first electrode beam, the second electrode beam and the human body lesion tissue. Accordingly, the problems that in the working process of the radiofrequency ablation electrode device, a patient feels discomfort and continuously has fever in several weeks after the patient is subjected to a radiofrequency ablation operation due to the fact that high radiofrequency energy is consumed and the radiofrequency energy can be accumulated in human body normal tissue are solved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a radio frequency ablation electrode device. Background technique [0002] Radiofrequency ablation (radiofrequency ablation, RFA) is a kind of physical therapy that uses radiofrequency current to excite high-speed oscillations of ions in tissues to collide and rub against each other to generate high heat to dehydrate tumor tissue cells and tissues to form local coagulation necrosis to treat tumors. [0003] The radiofrequency ablation treatment of tumor also depends on the biological characteristics of the tumor tissue itself. Due to the anatomical and histological defects of tumor tissue, there are characteristics such as insufficient blood supply, hypoxia, partial warming, and heat resistance, which provide a theoretical basis for radiofrequency ablation therapy. Tumor tissue cannot dissipate heat after absorbing heat energy, and its internal temperature can rise 5-9°C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/14
CPCA61B18/14A61B2018/00589A61B2018/00791A61B2018/00964A61B2018/1405A61B2018/1467
Inventor 肖波
Owner MEDSPHERE INT SHANGHAI
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