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Radiofrequency ablation catheter and treatment device containing the same

A technology of radiofrequency ablation and treatment device, applied in the field of treatment device and radiofrequency ablation catheter, can solve the problems of tissue stickiness, high impedance, and difficulty in flexible adjustment of impedance, etc., and achieves the effects of non-persistent pigmentation, convenient use and less allergy

Inactive Publication Date: 2015-10-14
ANGEL MEDICAL TECH NANJING
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0009] Impedance control uses an impedance of 400-500 ohms, but it is difficult to adjust the specific impedance flexibly. If the impedance is too small, the ablation will be terminated early, and the ablation will not be complete. If the impedance is too large, it will easily lead to tissue sticking

Method used

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  • Radiofrequency ablation catheter and treatment device containing the same
  • Radiofrequency ablation catheter and treatment device containing the same
  • Radiofrequency ablation catheter and treatment device containing the same

Examples

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with accompanying drawing:

[0040] Such as figure 1 , embodiment one.

[0041] A radiofrequency ablation catheter, comprising an electrode ablation head 10, a PTC thermistor body 20 and an inner conductor 30, the electrode ablation head 10 is arranged at the end of the inner conductor 30, and a PTC is arranged between the electrode ablation head 10 and the inner conductor 30 The thermistor body, the inner conductor 30 is connected with the cable plug assembly 40.

[0042] The electrode ablation head 10 is a tubular body with a smooth arc-shaped end.

[0043] The electrode ablation head 10 is made of medical 304 stainless steel.

[0044] The critical temperature of the PTC thermistor body 20 is 80°C to 120°C.

[0045] Such as figure 2 , image 3 , embodiment two.

[0046] Another radio frequency ablation catheter of the present invention includes an outer conductor 1, a PTC thermistor body 2, an ...

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Abstract

A radiofrequency ablation catheter is characterized by comprising an electrode ablation head (10), a positive temperature coefficient (PTC) thermistor (20) and an inner conductor (30). The electrode ablation head (10) is arranged at the end of the inner conductor (30), the PTC thermistor is arranged between the electrode ablation head (10) and the inner conductor (30), and the inner conductor (30) is connected with a cable plug module (40). The radiofrequency ablation catheter and the treatment device containing the radiofrequency ablation catheter can accurately control the ablation temperature through the PTC; the ablation catheter is not glued when tissues are coagulated, and the risks such as the complication of bleeding once again are not caused.

Description

technical field [0001] The invention relates to the technical field of medical radiofrequency ablation, in particular to a radiofrequency ablation catheter and a treatment device including the radiofrequency ablation catheter. Background technique [0002] Minimally invasive ablation is the development trend of the medical industry. Among them, thermal ablation has become the mainstream of ablation treatment because of its definite effect. Thermal ablation mainly includes three types: microwave, laser, and radiofrequency. Each thermal ablation method has its own advantages and disadvantages. These three types of minimally invasive thermal ablation treatment methods are all realized by various ablation electrodes. The ablation electrodes can be roughly divided into hard electrodes and soft electrodes in terms of structure. Vascular interventional therapy mainly relies on soft electrodes (superficial vascular intervention Hard electrodes can be used), such as the treatment of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12
CPCA61B2018/00815A61B18/1492A61B2017/00853A61B2018/00577A61B2018/00714A61B2018/1405
Inventor 陈志明李林华
Owner ANGEL MEDICAL TECH NANJING
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