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Multi-electrode hypertension endovascular radio-frequency ablation catheter

A technology of radiofrequency ablation and high blood pressure, applied in the direction of heating surgical instruments, etc., can solve the problems of high morbidity and high complications, and achieve the effect of avoiding complications

Inactive Publication Date: 2012-10-03
湖南依微迪医疗器械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such extensive splanchnic denervation results in high perioperative morbidity and a high incidence of other visceral dysfunction following extensive splanchnic denervation

Method used

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  • Multi-electrode hypertension endovascular radio-frequency ablation catheter
  • Multi-electrode hypertension endovascular radio-frequency ablation catheter
  • Multi-electrode hypertension endovascular radio-frequency ablation catheter

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Embodiment Construction

[0020] see figure 1 with figure 2 picture. The present invention includes a connection joint 1, a handle 2, a catheter tube body 3 and an electrode 4 in sequence from the proximal end to the distal end. figure 1 The electrodes are four, figure 2 There are six electrodes, and the electrodes are divided into angles of 360 degrees and distributed along the straight longitudinal axis. When the multi-pole is four-pole, the division is 90 degrees between the poles; when the multi-pole is five-pole, the division is 72 degrees; when the multi-pole is six-pole, the division is the distance between the poles is 60 degrees. The electrode is the electrical signal output and collection part, and the rear part of the tube body is the connector and the control handle for the electrical signal input and output.

[0021] see image 3 , image 3 A cross-sectional view of the catheter tube. The catheter tube body 3 includes a catheter lumen 8, a catheter inner layer 7, a metal wire rei...

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Abstract

The invention discloses a multi-electrode hypertension endovascular radio-frequency ablation catheter. The catheter comprises a connector, a handle, a catheter tube and a plurality of electrodes; one end of the catheter body is connected with the connector, and a plurality of electrodes are arranged at the other end of the catheter body; the handle is arranged at one end of the catheter tube, which is close to the connector; the electrodes are distributed at angles and along a linear longitudinal axis; a catheter main body is the catheter body which is made by compounding a thermoplastic polymer and a wire mesh, wherein the near end of the catheter body is hard, and the far end of the catheter body is soft; a far end electrode made of a platinum composite material is arranged at the front end of the catheter; and a plurality of leads of the electrodes are connected with the connector through a channel in the catheter body. The catheter has the functions of monitoring temperature of renal vascular tissues and measuring local impedance of the renal vascular tissues, has the effects of feeding back and regulating radio-frequency current intensity, retarding bilateral renal sympathetic nerves and blocking the sympathetic nerves from stimulating the kidney to produce and secrete rennin, namely angiotensin, and fulfills the aims of reducing blood pressure and treating hypertension.

Description

technical field [0001] The invention relates to a catheter for clinically treating hypertension, in particular to a catheter for intravascular radiofrequency ablation of multipolar hypertension. Background technique [0002] Hypertension is a common disease that seriously affects people's quality of life and is life-threatening. It is also the main cause of death worldwide. Every year, 7 million people die from hypertension worldwide. On October 12, 2004, the "Investigation Report on the Nutrition and Health Status of Chinese Residents" released at the press conference of the State Council Information Office pointed out that the prevalence of hypertension among adults in my country was 18.8%, and the awareness rate, treatment rate and control rate of hypertension among the population The rates are only 30.2%, 24.7% and 6.1%. Even in the United States, the control rate of hypertension treatment in recent years is less than 30%. Treatment However, domestic epidemiological sur...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/14
Inventor 曾延华黄柯李明彭文涛李赛斯周怀其方唯一曲新凯
Owner 湖南依微迪医疗器械有限公司
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