CN202437329U

CN202437329U - Manipulative radiofrequency catheter electrode device

Info

Publication number: CN202437329U
Application number: CN2012200086600U
Authority: CN
Inventors: 秦杰; 罗景涵
Original assignee: SHANGHAI ANTONG MEDICAL TECHNOLOGY Co Ltd
Current assignee: SHANGHAI ANTONG MEDICAL TECHNOLOGY Co Ltd
Priority date: 2012-01-10
Filing date: 2012-01-10
Publication date: 2012-09-19
Anticipated expiration: 2022-01-10

Abstract

The utility model belongs to the technical field of medical instruments, in particular to a manipulative radiofrequency catheter electrode device, which consists of an electrode, a catheter, recognition rings, a handle, an electrode contact, a temperature sensing device and an electrode lead, wherein one end of the catheter is connected with the electrode, and the other end of the catheter is connected with the handle; the handle is provided with an inner cavity; the electrode contact is arranged at the bottom of the handle, and a contact part is arranged in the inner cavity of the handle; the catheter is provided with an inner cavity which is communicated with the inner cavity of the handle; the electrode lead is arranged in the inner cavity of the catheter; the electrode is connected with the electrode contact through the electrode lead; the temperature sensing device is additionally arranged in the inner cavity of the catheter; and the recognition rings capable of developing light are settled in the inner cavity or on the outer wall of the catheter, and are matched with the assistance of X-ray development to be used for positioning the location of radiofrequency ablation. The manipulative radiofrequency catheter electrode device is simple in structure, is convenient to operate, has high accuracy and can further effectively achieve the aim of radiofrequency interventional therapy.

Description

A kind of formula radiofrequency catheter electrode assembly of controlling

Technical field

This utility model belongs to technical field of medical instruments.Be specifically related to a kind of formula radiofrequency catheter electrode assembly of controlling.

Background technology

RF ablation is a kind of invasive tumor original position treatment technology.Its operation principle is: when electronic generator produces radio-frequency current (460-500 KHz), make its surrounding tissue produce high-speed ion vibration and friction through the exposed electrodes pin, be converted into heat energy then.Its heat energy conducts to periphery in time gradually, thereby makes local organization cell generation thermocoagulation property necrosis and degeneration.Learn that from pathology is clinical when temperature reaches 60 degree when above, the protein in the tissue can change its characteristic because of heat, causes histiocytic irreversible necrosis.And in the thermotherapy temperature scope of 43 ~ 60 degree, the normal cell tissue still has the ability that autotherapy recovers.

Because on using, the kidney sympathetic nerve plays a significant role in the adjusting of blood pressure, the orthosympathetic excessive activation of kidney possibly promote hypertensive generation, development.The orthosympathetic nervus centripetalis excessive activation of kidney, and then activate the central nervous system and secrete vassopressin etc., make hypertension.And on dissecting; Orthosympathetic centripetal fiber of kidney and efferent fiber all are positioned at arteriorenal adventitia; Be positioned at the superficial place of renal artery wall; So can melt bilateral renal arteries through the femoral artery pathway, with the RF energy of interventional therapy see through in the renal artery, middle film arrives adventitia and damages the adventitia nerve fiber, and then reach the purpose that brings high blood pressure down.

Along with the development of radio-frequency technique and the expansion gradually of clinical practice, radio-frequency technique is applied to the effect that various different clinical symptoms realize that various existing methods can't effectively reach, give sufferer safer treatment simultaneously.

Although this utility model electrode is used to treat the hyperpietic who has accepted multiple Drug therapy but also can't reach the target blood pressure; This electrode assembly is based on the interventional therapy of conduit; Compare with the mode of conventional medicament blood pressure lowering; The application of this device possibly obviously reduce patient's cardiovascular risk, alleviates the burden of taking depressor for a long time.This electrode wound is little, simple to operate, is the mode of invading with minimum, and renal artery is melted, and reaches the purpose that brings high blood pressure down.

Summary of the invention

It is a kind of simple in structure, easy to operate that the purpose of this utility model is to provide, and accuracy is high is used for the radiofrequency catheter electrode assembly that the formula controlled of interventional therapy is hindered by Wicresoft, is used for the tunica intima tissue is carried out Wicresoft's RF ablation.

The radiofrequency catheter electrode assembly of the formula controlled that this utility model provides is made up of electrode 1, conduit 2, identification ring 3, handle 4, electrode contact 5, temperature sensing device 6 and electrode cable 7.One end of said conduit 2 is connected with electrode 1, and the other end is connected with an end of handle 4, and handle 4 has inner chamber, and the other end of handle 4 (holding end) bottom is provided with an electrode contact 5, and connector portions is arranged in the intracavity of handle.

Wherein, said conduit 2 has inner chamber, and conduit 2 inner chambers and intracavity of handle are communicated, and said electrode cable 7 is arranged in conduit 2 inner chambers, and electrode 1 connects with electrode contact 5 through electrode cable 7; Simultaneously, said temperature sensing device (6) also is arranged in conduit (2) inner chamber, and temperature sensing device 6 two ends are connection electrode 1 and electrode contact 5 respectively, in order to control electrode end temperature; The inner chamber of said conduit 2 or outer wall are mounted with the identification ring 3 that can develop to illumination, in order to the position of location RF ablation.

In this utility model, said electrode 1 is respectively 1 ~ 5 mm with conduit 2 diameters, and the total length of conduit 2 and electrode 1 is 90 ~ 150cm.

During this was practical, said electrode 1 was high conduction performance conduction RF energy electrode.

In this utility model, the quantity of said identification ring 3 is 1 ~ 3, develops in order to assist X-ray.

In this utility model, an end of said conduit 2 connection electrode 1 can be done the bending of 0 ~ 180 degree.

This utility model device has can be handling, as control unit, can control the temperature of electrode assembly and the energy output of power with handle 4.

In this utility model, said conduit 2 front ends are flexible, thereby can make electrode revolution flexibly in blood vessel, fix a point to melt.Conduit has rigidity to a certain degree simultaneously, but the rotation of mat handle cooperates the assistance of X photodevelopment, carries out multiple-point spiral type and melts.Cooperate the radio frequency instrument that has with temperature control or power control, can reach Wicresoft's RF ablation purpose.

The advantage of this utility model is simple in structure, and is easy to operate, and accuracy is high, more can reach the purpose of radio frequency interventional therapy effectively.

Description of drawings

Fig. 1 is this utility model structure drawing of device.

The specific embodiment

This utility model is realized by following mode.Form by electrode 1, conduit 2, identification ring 3, handle 4, electrode contact 5, temperature sensing device 6 and electrode cable 7.Wherein, selecting diameter for use is the conduit 2 of 1.5mm, and the one of which end is connected with electrode 1; Conduit is 120cm with the total length of electrode, and the other end is connected with an end of handle 4, and handle 4 has inner chamber; The other end of handle 4 (holding end) bottom is provided with an electrode contact 5, and blank area is arranged in the intracavity of handle.Temperature sensing device and electrode cable part all is connected between electrode and the electrode contact, for the supply of temperature and power provides the path.

Wherein, said conduit 2 has inner chamber, and conduit 2 inner chambers and intracavity of handle are communicated, and is provided with electrode cable 7 in conduit 2 inner chambers, and electrode 1 connects with electrode contact 5 through electrode cable 7; Said conduit 2 inner chambers are provided with a temperature sensing device 6 in addition; Inner chamber at conduit 2 is mounted with 2 identification rings 3, in order to the position of location RF ablation.

Electrode in the instance is used for melting of adventitia nerve fiber, and conduit pierces into renal artery and arrives near the renal artery of both sides.In a single day electrode tip puts in place; The handle control end will provide the low-power radio frequency energy to remove to influence sympathetic nerve on every side; Electrode tip melts according to the temperature and the power that receive, thereby reduces renal artery wall sympathetic activity, effectively reduces hypertensive patient's blood pressure level.

This interventional therapy device alleviates the burden that sufferer is taken depressor for a long time, has reduced patient's cardiovascular risk simultaneously.Small service aisle has reduced surgical injury, treats effectively stable.

Claims

1. can control formula radiofrequency catheter electrode assembly for one kind, it is characterized in that forming by electrode (1), conduit (2), identification ring (3), handle (4), electrode contact (5), temperature sensing device (6) and electrode cable (7); One end of said conduit (2) is connected with electrode (1), and the other end is connected with an end of handle (4), and handle (4) has inner chamber, and the other end bottom of handle (4) is provided with an electrode contact (5), and blank area is arranged in the intracavity of handle;

Wherein, said conduit (2) has inner chamber, and conduit (2) inner chamber and intracavity of handle are communicated, and said electrode cable (7) is arranged in conduit (2) inner chamber, and electrode (1) connects through the same electrode contact of electrode cable (7) (5); Simultaneously, said temperature sensing device (6) also is arranged in conduit (2) inner chamber, and temperature sensing device (6) two ends is connection electrode (1) and electrode contact (5) respectively; The inner chamber of said conduit (2) or outer wall are mounted with the identification ring (3) that can develop to illumination, in order to the position of location RF ablation.

2. the formula radiofrequency catheter electrode assembly of controlling as claimed in claim 1 is characterized in that said electrode (1) and conduit (2) diameter are respectively 1 ~ 5 mm, and the total length of conduit (2) and electrode (1) is 90 ~ 150 cm.

3. the formula radiofrequency catheter electrode assembly of controlling as claimed in claim 1, the quantity that it is characterized in that said identification ring (3) is 1 ~ 3.