CN200973748Y

CN200973748Y - Melted type catheter in heart

Info

Publication number: CN200973748Y
Application number: CN 200620036257
Authority: CN
Inventors: 李楚森
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-15
Filing date: 2006-11-15
Publication date: 2007-11-14
Anticipated expiration: 2016-11-15

Abstract

The utility model discloses a ablation catheter for heart interventional therapy, which comprises at least two branch electrodes (5), a catheter main body (6), and an operating handle (7), wherein the branch electrodes (5) are arranged in petaloid shape and each have a metal electrode (12) in the top end thereon, with a temperature sensor (11) below the metal electrode (12); the metal electrode (12) and temperature sensor (11), respectively via a metal wire (13) and a sensor wire (15), are connected with an insulating tube (14), the catheter main body (6), the operating handle (7), and an examination/therapy instrument (4) in order; and the proximal end of the catheter main body (6) is provided with a depth scale (19) and an angle scale (20). The utility model can attach tightly to the operative site inside the heart, and realizes the circumferential ablation by properly rotating the catheter for 3-5 times.

Description

A kind of cardiac intervention ablation catheter

Technical field

This utility model relates to a kind of medical therapy apparatus, especially relate to and a kind ofly forming by plural branch electrode, the branch electrode is the expansion of chrysanthemum flowers flap under the naturalness, under a ring-like and rugged condition, reliably contact, realize monitoring temperature, the cardiac intervention ablation catheter that the signal of telecommunication extracts and/or energy transmits with object.

Background technology

In fields such as electrocardio interventional therapy, use interposing catheter to realize the extraction of the temperature parameter monitoring of therapentic part, electricity physiological signal and/or the transmission of treatment energy etc. in a large number.Particularly in the heart radio-frequency ablation procedure, at the position of injustice of the inner high end of dancing heart, need recline reliably and/or ring-type melts the success that just can obtain operation.And be used for the two class conduits that have of heart radio-frequency ablation procedure at present, and a class is a monopolar electrode catheter, another kind of is multipolar electrode catheter.Its top of monopolar electrode catheter only has an electrode to realize the conduit that monitoring temperature, electricity physiological signal extract and/or the treatment energy transmits, the shortcoming of monopolar electrode catheter is: owing to be single electrode, when the heart intervene operation needs ring-type to melt, just need link up to melt and realize that ring-type melts at a lot of points, this just brings operating time long, and is difficult to realize that complete ring-type melts.Thereby the effect of the treatment that is difficult to hit pay dirk.Another kind of multipolar electrode catheter, such conduit is its open and close of may command respectively, when opening, be ball-type or circular ring type, suitable position at its ball-type face or annulus has a plurality of electrodes to realize monitoring temperature, electricity physiological signal extracts and/or the treatment energy transmits, when closing, be punctured into the umbrella or the straight line of closing, be convenient in blood vessel, pass in and out, the shortcoming of multipolar electrode catheter is: can only realize that the multiple spot of a line or the plane realization multiple spot of a desirable rule melt at the annulus of ideal rule, but the variation irregular and that just differ of heart tube intracavity portion, actual being difficult to of such conduit forms the complete position that needs treatment that abuts in reliably in the operation of reality, brings the prolongation of a large amount of unsuccessful and operating time of operation like this.

Summary of the invention

The purpose of this utility model provides under a kind of situation that is uneven a kind of cardiac intervention ablation catheter of realizing closely reliably abutting in operative site in heart, solve that existing conduit is difficult to satisfy clinical ring-type and the condition that is uneven under recline reliably and melt the problem of needs.

In order to achieve the above object, this utility model adopts following technical scheme: a kind of cardiac intervention ablation catheter, described conduit is by the branch electrode more than at least 2, the conduit trunk, operating grip constitutes, wherein all branch distribution of electrodes form petal-shaped, the top of every lobe branch electrode is a metal electrode, metal electrode passes insulation tube successively by the tinsel of its lower end welding, the conduit trunk, handle is connected with the inspection therapeutic equipments, there is temperature sensor the lower end of metal electrode, temperature sensor is passed insulation tube successively by the pick off line, the conduit trunk, handle is connected with the inspection therapeutic equipments, temperature sensor, metal electrode, insulation tube is by the bonding one-tenth one lobe branch electrode of insulation adhesives (as epoxy resin), the insulation adhesives is provided with depth scale and angle index with bonding being integral of branch electrode and conduit trunk top at the root of conduit trunk.

The tinsel of described branch electrode is connected with cable with the space of outer interlayer with the internal layer that the pick off line passes the conduit trunk, and cable is connected with the inspection therapeutic equipments by plug.

One end of described conduit trunk and the insulation tube of branch electrode are by bonding being integral of insulation adhesives (as epoxy resin), the other end of conduit trunk stretches into and is connected with adaptor in the handle, the opposite side of adaptor is provided with lumen pore, the lumen pore of basket steel wire on adaptor stretches in the centre bore of conduit trunk, and the lower end of adaptor is connected with three-way valve.

Described conduit trunk is equipped with the sheath pipe outward.

This utility model conduit adopts plural branch electrode to form (this conduit can adopt: 2 branch electrodes, 3 branch electrodes, 4 branch electrodes, 5 branch electrodes, 6 branch electrodes, 7 branch electrodes, 8 branch electrodes), all branch electrodes are the expansion of chrysanthemum flowers flap under the naturalness, on rugged contactant, realize reclining reliably with the resilient flexible of chrysanthemum flowers flap electrode, realize that monitoring temperature, the signal of telecommunication extract and/or energy transmits, suitably steering nozzle realizes that the ring-type that multiple spot connects melts.This conduit can be divided into chrysanthemum flowers flap branch electrode, conduit trunk and operating grip three parts, chrysanthemum flowers flap branch electrode is for entering in the human heart, the part that reliably reclines and melt under the realization ring-type and the condition that is uneven, there is plural branch electrode on its top; The conduit trunk is the part that enters human body; Operating grip behaviour outer body is the part that operator is operated whole conduit and is connected with the instrument and equipment of diagnosis or treatment.

The beneficial effects of the utility model are: can realize closely abutting in operative site in heart under the rugged situation, realize the extraction of therapentic part temperature parameter monitoring accurately, electricity physiological signal and/or the transmission of treatment energy, as long as suitably steering nozzle for several times, just can realize that complete ring-type melts, reduce operating time, increased the successful treatment rate of operation.

Description of drawings

Fig. 1 is the situation sketch map of the instrument application of this utility model conduit and connection in the patient;

Fig. 2 is the structural representation of conduit;

Fig. 3 is the side cut away view that this utility model ZHONGJUHUA petal-shaped branch electrode amplifies;

Fig. 4 is the front perspective view that this utility model ZHONGJUHUA petal-shaped branch electrode amplifies;

Fig. 5 is a conduit trunk amplification sectional view in this utility model, is the A-A cutaway view of Fig. 7;

Fig. 6 has depth scale and angle index enlarged drawing for conduit trunk root in this utility model;

Fig. 7 is a handle profile structure chart in this utility model;

Fig. 8 is the bottom view of handle in this utility model, is the B-B cutaway view of Fig. 7.

The specific embodiment

Accompanying drawings is to the structure of this utility model and how to be used for patient's cardiac catheter intervention diagnosis and treatment are described.

The structure of a kind of cardiac intervention ablation catheter of this utility model such as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, main by the branch electrode 5 more than at least 2, conduit trunk 6, operating grip 7 constitutes, wherein all branch electrodes 5 distribute and form petal-shaped (under naturalness), the top of every lobe branch electrode 5 is a metal electrode 12, metal electrode 12 is curved, metal electrode 12 passes insulation tube 14 successively by the tinsel 13 of its lower end welding, conduit trunk 6, handle 7 is connected with inspection therapeutic equipments 4, there is temperature sensor 11 lower end of metal electrode 12, temperature sensor 11 is passed insulation tube 14 successively by pick off line 15, conduit trunk 6, handle 7 is connected with inspection therapeutic equipments 4, temperature sensor 11, metal electrode 12, the tinsel 13 of insulation tube 14 and insulation tube 14 front ends and pick off line 15 become a lobe branch electrode 5 by insulation adhesives (as epoxy resin) 16 is bonding, insulation adhesives (as epoxy resin) 16 is with branch electrode 5 and the bonding formation one in conduit trunk 6 tops, root at conduit trunk 6 is provided with depth scale 19 and angle index 20, handle 7 is arranged be provided with the root of depth scale 19 and angle index 20 at conduit trunk 6 after.The tinsel 13 of branch electrode 5 is connected with cable 8 with the space of 18 of skins with the internal layer 17 that pick off line 15 passes conduit trunk 6, and cable 8 is by plug 9 and check that therapeutic equipments 4 is connected.One end of conduit trunk 6 and the insulation tube 14 of branch electrode 5 are by insulation adhesives (as epoxy resin) 16 bonding being integral, the other end of conduit trunk 6 stretches into and is connected with adaptor 22 in the handle 7, adaptor 22 is positioned at handle 7, the opposite side of adaptor 22 is provided with lumen pore 21, the tail end of basket steel wire 3 stretches into through the centre bore of conduit trunk 6 front ends, come out from the lumen pore 21 of tail end, the lower end of adaptor 22 is connected with three-way valve 10.Sheath pipe 1 is installed outside conduit trunk 6.

In Fig. 1: the therapentic part that sheath pipe 1 is arrived heart by femoral vein; Basket steel wire 3 carries out the therapentic part location by sheath pipe 1; Basket steel wire 3 external tail ends pass the inner chamber of Flos Chrysanthemi ablation catheter 2, arrive the concrete therapentic part and the location of heart after the branch electrode 5 of Flos Chrysanthemi ablation catheter 2 closes up again by sheath pipe 1; To diagnose or/and therapeutic equipments 4 is connected with the plug 9 of Flos Chrysanthemi ablation catheter 2.In Fig. 2: Flos Chrysanthemi ablation catheter 2 can be divided into chrysanthemum flowers flap branch electrode 5, conduit trunk 6 and operating grip 7 three parts.In Fig. 3, Fig. 4: chrysanthemum flowers flap branch electrode 5 is for entering in the human heart, there is metal electrode 12 on the branched top of every lobe, link to each other with the instrument 4 of inspection/treatment by the tinsel 13 that is welded on metal electrode 12, realize the extraction of electro-physiological signals and the transmission of treatment energy; Bury temperature sensor 11 under the electrode and link to each other with the instrument 4 of inspection/treatment, realize the temperature monitoring in the therapeutic process by pick off line 15; Top electrodes 12 is connected with tinsel 13, realizes that the branch electrode becomes softish chrysanthemum flowers flap under naturalness, and can recline closely when the rugged contact surface of contact, and the formation ring-type melts when suitable steering nozzle; Tinsel 13 and pick off line 15 are passed softish insulation tube 14, and insulation adhesives (as the epoxy resin) 16 of using the high adhesiveness energy is with pick off 11, electrode 12, softish insulation tube 14 bonding one-tenth chrysanthemum flowers flap branch electrodes 5; The tinsel 13 of the chrysanthemum flowers flap branch electrode 5 of molding and pick off line 15 are pierced between the space of the skin 17 of conduit trunk and 18 of internal layers and link to each other, then with the chrysanthemum flowers flap branch electrode 5 and conduit trunk 6 tops bonding be integral of insulation adhesives (as epoxy resin) 16 molding with cable 8.In Fig. 5: the part of conduit trunk 6 for entering human body, can enter human body by the sheath pipe 1 of special use, and allow chrysanthemum flowers flap branch electrode 5 arrive the cardiac treatment position, conduit trunk 6 is that interlayer is gapped, central hollow, the space that the skin 17 of conduit trunk and internal layer are 18 is by tinsel 13 and pick off line 15, and central hollow is by basket steel wire 3.In Fig. 6: the root of conduit trunk 6 has depth scale 19 and angle index 20, and depth scale 19 is realized chrysanthemum flowers flap branch electrodes 5 and can be reclined purpose closely when rugged contacts.Angle index 20 realizes that chrysanthemum flowers flap branch electrode 5 reaches the purpose that complete ring-type melts by the scale rotation when the rotating operation handle.In Fig. 7: operating grip is the human body outer body, is the column type handle 7 that two halves are bonded together, and is used for operator and operates whole conduit.In Fig. 8: there is cable 8, the plug 9 that is connected with the instrument and equipment 4 of diagnosis/treatment the outside of operating grip, by the lumen orifice 21 of basket steel wire 3, and extracts air in the hollow lumen hole 21 and in emergency circumstances to the three-way valve 10 of patient's administration.

Claims

1, a kind of cardiac intervention ablation catheter, it is characterized in that: described conduit is by the branch electrode (5) more than at least 2, conduit trunk (6), operating grip (7) constitutes, wherein all branch electrodes (5) distribute and form petal-shaped, the top of every lobe branch electrode (5) is metal electrode (12), metal electrode (12) passes insulation tube (14) successively by the tinsel (13) of its lower end welding, conduit trunk (6), handle (7) is connected with checking therapeutic equipments (4), there is temperature sensor (11) lower end of metal electrode (12), temperature sensor (11) is passed insulation tube (14) successively by pick off line (15), conduit trunk (6), handle (7) is connected with checking therapeutic equipments (4), temperature sensor (11), metal electrode (12), insulation tube (14) is by the bonding one-tenth one lobe branch electrode (5) of insulation adhesives (16), insulation adhesives (16) is branch electrode (5) and bonding being integral in conduit trunk (6) top, is provided with depth scale (19) and angle index (20) at the root of conduit trunk (6).

2, a kind of cardiac intervention ablation catheter according to claim 1, it is characterized in that: the tinsel (13) of branch electrode (5) and pick off line (15) pass the internal layer (17) of conduit trunk (6) and are connected with cable (8) with space between outer (18), and cable (8) passes through plug (9) and is connected with inspection therapeutic equipments (4).

3, a kind of cardiac intervention ablation catheter according to claim 1, it is characterized in that: the insulation tube (14) of an end of conduit trunk (6) and branch electrode (5) is by bonding being integral of insulation adhesives (16), the other end of conduit trunk (6) stretches into and is connected with adaptor (22) in the handle (7), the opposite side of adaptor (22) is provided with lumen pore (21), the tail end of basket steel wire (3) stretches into through the centre bore of conduit trunk (6) front end, come out from the lumen pore (21) of tail end, the lower end of adaptor (22) is connected with three-way valve (10).

4, a kind of cardiac intervention ablation catheter according to claim 1 is characterized in that: sheath pipe (1) is installed outside conduit trunk (6).