CN218420027U

CN218420027U - Cardiac pulse ablation catheter

Info

Publication number: CN218420027U
Application number: CN202222603595.2U
Authority: CN
Inventors: 刘智远
Original assignee: Hangzhouready Biological Technology Co ltd
Current assignee: Hangzhouready Biological Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-02-03
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a cardiac pulse ablation catheter, which relates to the technical field of medical instruments and comprises a head end, a catheter body and a handle which are connected in sequence, wherein the catheter body comprises an outer electrode tube and an electrode ring which is sleeved outside the outer electrode tube along the cross section, a gooseneck is arranged in the outer electrode tube, and the catheter body can be bent into an annular ablation part under the action of the gooseneck; the utility model discloses a lead to gooseneck in electrode outer tube because the gooseneck has the characteristic that spirals into the difficult scattering of circle form, consequently at the treatment in-process, spirals into the gooseneck with the pulmonary vein size the same size, become one or more cyclic annular portion of melting, not only can melt a pulmonary vein alone, also can melt a plurality of pulmonary vein mouths simultaneously, increased greatly and melted efficiency.

Description

Cardiac pulse ablation catheter

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to cardiac pulse ablation catheter.

Background

Atrial fibrillation, called atrial fibrillation for short, is a common persistent arrhythmia disease. For persistent atrial fibrillation, the pulmonary vein is usually ablated through a surgical operation, and in the surgical operation, a doctor usually clamps the pulmonary vein for ablation, so that the pulmonary vein is inevitably damaged.

Most of existing ablation devices for cardiac surgery use an ablation clamp to clamp a target part for ablation, incomplete ablation is likely to happen because only two surfaces of the ablation clamp can contact the part to be ablated, and meanwhile, the traditional ablation device can only ablate a single pathological part, so that ablation efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a cardiac impulse ablation catheter, which does not need to clamp the pulmonary vein and can realize ablation of the diseased part of the heart.

The utility model adopts the following technical scheme:

the utility model provides a cardiac pulse ablation catheter, includes consecutive head end, pipe shaft and handle, the pipe shaft includes the electrode outer tube and along the outside electrode ring of cross-section cover at the electrode outer tube, the intraductal gooseneck that leads to of electrode outer tube, the pipe shaft can be bent into cyclic annular ablation portion under the effect of gooseneck.

Preferably, the gooseneck comprises an inner hose and a deformation assembly wrapped around the outside of the hose.

Preferably, the electrode ring is formed by winding positive and negative electrode leads.

Preferably, the ablation area of the annular ablation part is not less than 1.5 square millimeters.

Preferably, the annular ablation part comprises an inner ablation zone and an outer ablation zone, and the ablation area of the inner ablation zone occupies 2/3-5/6 of the ablation area of the inner ablation zone.

Preferably, the number of electrode ring electrode rings of the ring-shaped ablation part is not less than 3.

Preferably, the bending range of the tube body of each quarter of the annular ablation part is 0-180 degrees.

Preferably, the electric torch further comprises a connecting wire connected with the other end of the handle, the connecting wire is connected with an external console, a voltage generating device is arranged on the console, and the voltage generating device penetrates through the connecting handle and the electrode through the connecting wire.

Preferably, the voltage generating device generates power by using a pulse electric field.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses a lead to gooseneck in electrode outer tube because the gooseneck has the characteristic that spirals into the difficult scattering of circle form, consequently at the treatment in-process, spirals into the gooseneck with the pulmonary vein size the same size, become one or more cyclic annular portion of melting, not only can melt a pulmonary vein alone, also can melt a plurality of pulmonary vein mouths simultaneously, increased greatly and melted efficiency.

2. The utility model discloses can be according to the different sizes of pulmonary vein, adjust the pipe and melt the position size and melt pulmonary vein, need not clamp pulmonary vein melting the in-process, only need with cyclic annular electrode ring and the pulmonary vein that melt on the portion paste can.

3. The ablation area inside and outside the annular ablation part can simultaneously ablate when electrified, and adjacent different diseased areas can be simultaneously ablated.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is the internal structure view of the swan neck of the utility model.

Fig. 3 is a schematic structural diagram of an embodiment of the present invention.

In the figure, a head end 1, an outer electrode tube 2, an electrode ring 3, a gooseneck tube 4, a hose 41, a deformation component 42, a tube body 5, a handle 6, an annular ablation part 7, an inner ablation area 71, an outer ablation area 72 and a connecting line 8.

Detailed Description

In order to facilitate understanding of the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, the utility model discloses a cardiac pulse ablation catheter, which comprises a head end 1, a catheter body 5 and a handle 6, which are connected in sequence, and is characterized in that the catheter body 5 comprises an outer electrode tube 2 and an electrode ring 3 sleeved outside the outer electrode tube 2 along the cross section, a gooseneck tube 4 is communicated in the outer electrode tube 2, and the catheter body 5 can be bent into an annular ablation part 7 under the action of the gooseneck tube 4; the electric torch is characterized by further comprising a connecting wire 8 connected with the other end of the handle, the connecting wire is connected with an external console, a voltage generating device is arranged on the console, and the voltage generating device penetrates through the connecting handle and the electrode through a connecting wire 4; the voltage generating device generates electricity by adopting a pulse electric field, and the pulmonary vein is not required to be clamped in the ablation process, and only the electrode ring on the annular ablation part is required to be attached to the pulmonary vein.

The utility model discloses a lead to gooseneck in electrode outer tube because the gooseneck has the characteristic that spirals into the difficult scattering of circle form, consequently at the treatment in-process, spirals into the gooseneck with the pulmonary vein size the same size, become one or more cyclic annular portion of melting, not only can melt a pulmonary vein alone, also can melt a plurality of pulmonary vein mouths simultaneously, increased greatly and melted efficiency.

The gooseneck 4 includes inside hose 41 and the deformation subassembly 42 of parcel in the hose outside, electrode ring 3 forms for the positive negative conductor coiling of electrode.

The ablation area of the annular ablation part 7 is not less than 1.5 square millimeters.

The annular ablation part 7 comprises an inner ablation area 71 and an outer ablation area 72, and the ablation area of the inner ablation area accounts for 2/3-5/6 of that of the inner ablation area; the ablation area inside and outside the annular ablation part can simultaneously ablate when electrified, and adjacent different diseased areas can be simultaneously ablated.

The electrode rings 3 of the annular ablation part 7 are 4 in number and are arranged on the annular ablation part 7 at uniform intervals.

The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is defined by the scope defined by the claims, and a plurality of modifications and decorations made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a heart pulse ablation catheter, includes consecutive head end (1), shaft (5) and handle (6), its characterized in that, shaft (5) include electrode outer tube (2) and along cross-section cover electrode ring (3) in electrode outer tube (2) outside, lead to gooseneck (4) in electrode outer tube (2), shaft (5) can be crooked cyclic annular ablation portion (7) under the effect of gooseneck (4).

2. A cardiac pulse ablation catheter according to claim 1, wherein the gooseneck (4) comprises an inner flexible tube (41) and a shape-changing assembly (42) wrapped around the outside of the flexible tube.

3. The cardiac pulse ablation catheter as claimed in claim 1, wherein the electrode ring (3) is formed by winding positive and negative wires of an electrode.

4. A cardiac pulse ablation catheter according to claim 1, wherein the ablation area of the annular ablation portion (7) is not less than 1.5 mm.

5. A cardiac impulse ablation catheter as in claim 1, wherein said annular ablation portion (7) comprises an inner ablation zone (71) and an outer ablation zone (72), the ablation area of said inner ablation zone being 2/3-5/6 of the inner ablation zone.

6. A cardiac pulse ablation catheter according to claim 1, wherein the number of electrode rings (3) of the annular ablation portion (7) is not less than 3.

7. A cardiac pulse ablation catheter according to claim 1, wherein the loop-like ablation portion (7) has a bending range of 0-180 degrees per quarter of the tube body (5).

8. A cardiac pulse ablation catheter as defined in claim 1, further comprising a connecting wire (8) connected to the other end of the handle, said connecting wire being connected to an external console, said console being provided with a voltage generating device, said voltage generating device being connected to the handle and the electrode by means of the connecting wire (8).

9. The cardiac pulse ablation catheter of claim 8, wherein the voltage generating device generates electricity using a pulsed electric field.