CN204797987U

CN204797987U - Can get into arrhythmia radio frequency that goes on treating in ventricle wall melts pipe

Info

Publication number: CN204797987U
Application number: CN201520082287.7U
Authority: CN
Inventors: 黄冰生
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-04
Filing date: 2015-02-04
Publication date: 2015-11-25
Anticipated expiration: 2025-02-04

Abstract

The utility model discloses a can get into arrhythmia radio frequency that goes on treating in ventricle wall melts pipe, it melts electrode, metal inner core, metal inner core toper head end, the external screw propulsion pole of metal inner core, metal inner core executor, metal inner core afterbody cable, outside and melts electrode afterbody cable, pipe head end degree of curvature adjustment handle, pipe tail end control rod, scaled mark on the external screw propulsion pole of metal inner core to melt electrode wire, outside including the pipe body, outside. The beneficial effects of the utility model are that (1 )Both can melt in internal membrane of heart department, and can get into again and melt the originating point darker arrhythmia in position in the locular wall, and can betterly fix and melt the pipe, (2 )Because the influence of no blood, energy that melts and heat are concentrated, and all melts the effect and appears soon in acting on the cardiac muscle, (3 )The metal inner core gets into intramyocardially and organizes actual area of contact bigger usually, (4 )The metal inner core gets into the intramural degree of depth in room can be regulated and control by the executor of pipe tail end accuracy, avoids myocardium fenestrate emergence.

Description

A kind ofly enter in ventricle wall the arrhythmia radio frequency ablation catheter carrying out treating

Technical field

This utility model can enter in ventricle wall the ablation catheter carrying out treating and belong to medical instruments field, is specifically related to a kind ofly enter in ventricle wall the arrhythmia radio frequency ablation catheter carrying out treating.

Background technology

Radio frequency ablation catheter is now widely used in various ARR interventional therapy.Current radio frequency ablation catheter clinically, through existing patent (DE10037660A1, EP2648638A4, WO2012/021022A1, CN201595926U) improve for many years, it is more and more convenient to operate, but also there is certain problem, the general chamber wall thickness of such as left ventricle is 6-12mm, often ablation effect is not good for the darker arrhythmia of left ventricle originating point, be applied to clinical cold brine perfusion ablation catheter in recent years also helpless to this, there is now part expert, scholar attempts treating this type of arrhythmia by epicardial ablation, but because operation is larger to injury of chest wall, and visceral pericardium has more important blood vessels, neural, complex structure, limit applying of technique.Current clinical conventional 6F arrhythmia ablation catheter, head end ablating electrode is generally 4mm, and usual apex electrode only has the area (7.07mm of 25% ²) recline with cardiac muscular tissue, generally only have output 9% can conduct to cardiac muscular tissue's heat production; Although experimentation display 4mm ablating electrode is to the maximum ablation range 9mm of cardiac muscular tissue, but it also only has 1-1.5mm scope to direct-fired scope, particularly for deep cardiac muscular tissue, damage range is limited, such as atrial walls thickness is generally 2-3mm, even if the also difficult transmural damage reaching atrial walls when using 4mm perfusion of saline ablation catheter major part when Atrial fibrillation radiofrequency ablation, the common ablation catheter of prompting 4mm is difficult to the damage that the degree of depth in cardiac muscular tissue reaches more than 3mm; And the common ablation catheter of 4mm is when carrying out radio-frequency (RF) ablation, because the heat major part produced is taken away by the blood that flows and other tissue of human body, therefore 30-60 is often needed could to arrive maximum ablation lesions second, but the impact of breathing and heartbeat sometimes, there is displacement in ablation catheter, effective damage is not reached to arrhythmia target spot, needs again to find target spot, extend operating time.The reason that there are these shortcomings is mainly: existing ablation catheter cannot enter in locular wall and melt, and the myocardial tissue damage degree of depth is inadequate, and melt heat large by influence of blood flow, conduit is fixed bad.

Summary of the invention

The purpose of this utility model is to avoid the deficiencies in the prior art part, and provide one can enter in ventricle wall to treat, intracavity have can fine adjustment enter length in ventricle wall melt with metal inside, with clinical various equipment compatible, disposable arrhythmia radio frequency ablation catheter.

This utility model is for achieving the above object, comprise catheter body, outside ablating electrode wire, outside ablating electrode, metal inside, metal inside taper head end, the external screw propulsion rod of metal inside, metal inside manipulator, metal inside tail cable, outside ablating electrode tail cable, conduit head end camber regulating handle, tail end of conduit stick, the external screw propulsion rod of metal inside has scale mark; Metal inside is inner at catheter body, and metal inside front portion is metal inside taper head end, and metal inside is connected with metal inside tail cable.

For reducing the damage to cardiac muscle when metal inside enters in locular wall, metal inside taper head end adopts airflow design.

The beneficial effect that this utility model obtains is that (1) both can melt at endocardium place, can enter again in locular wall and melt the arrhythmia that originating point position is darker, better can fix ablation catheter; (2) due to the impact without blood, the energy melted and heat are concentrated, and all act in cardiac muscle, and ablation effect occurs fast; (3) metal inside enter intramyocardial with organize real contact area usually larger, if metal inside diameter is 1mm, the degree of depth entering locular wall as metal inside is 4mm, and the area contacted with cardiac muscular tissue is 12.56mm ², as entered 3mm, contact area is 10.22mm ², as entered 2mm, contact area is 7.88mm ², all large than common 4mm ablation catheter cardiac muscular tissue contact area, melt efficiency higher; (4) degree of depth that metal inside enters in locular wall by the manipulator accuracy controlling of tail end of conduit, can avoid the generation of myocardial perforation.

Accompanying drawing explanation

Accompanying drawing 1 is this utility model complete structure schematic diagram.

Accompanying drawing 2 is this utility model head end internal structure schematic diagrams.

Accompanying drawing 3 is this utility model end construction schematic diagrams.

Accompanying drawing 4 is this utility model head end external structure schematic diagrams.

Accompanying drawing 5 is this utility model top Structure of cross section schematic diagrams.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

In accompanying drawing 1,2,3,4,5: 1, catheter body, 2, metal inside, 3, metal inside taper head end, 4, outside ablating electrode wire, 5, outside ablating electrode, 6, the external screw propulsion rod of metal inside, 7, metal inside manipulator, 8, metal inside tail cable, 9, outside ablating electrode tail cable, 10, conduit head end camber regulating handle, 11, tail end of conduit stick, 12, the external screw propulsion rod of metal inside there is scale mark, 13, outside ablating electrode head end; Metal inside 2 is inner at catheter body 1, and metal inside 2 front portion is metal inside taper head end 3, and metal inside 2 is connected with metal inside tail cable 8.

Claims

1. one kind can enter in ventricle wall the arrhythmia radio frequency ablation catheter carrying out treating, comprise catheter body (1), metal inside (2), metal inside taper head end (3), outside ablating electrode wire (4), outside ablating electrode (5), metal inside tail cable (8), outside ablating electrode tail cable (9), conduit head end camber regulating handle (10), tail end of conduit stick (11), it is characterized in that in conduit, there is a metal inside (2), metal inside (2) front portion is metal inside taper head end (3), metal inside (2) is connected with metal inside tail cable (8).

2. arrhythmia radio frequency ablation catheter according to claim 1, it is characterized in that including the external screw propulsion rod of metal inside (6), metal inside manipulator (7), the external screw propulsion rod of metal inside has scale mark (12).