Left atrial appendage occlusion and ablation device

A sealing part, annular technology, applied in medical science, heating surgical instruments, surgery, etc., can solve the problems of difficult radiofrequency ablation operation, difficult to maintain long-term efficacy, unable to completely isolate, etc., to increase the success rate of cure, implantation Simple and reliable operation, and the effect of improving efficiency

Pending Publication Date: 2019-09-10
杭州诺芮医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is that radiofrequency ablation and blockage are performed independently in the prior art, in which the radiofrequency ablation operation is difficult and takes a long time, and there will be situations where it cannot be completely isolated and

Method used

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  • Left atrial appendage occlusion and ablation device
  • Left atrial appendage occlusion and ablation device
  • Left atrial appendage occlusion and ablation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0069] The first implementation mode: the sealing part 110, the ablation part 120 and the anchoring part 130 have an integrated structure; the integrated structure can be a structure directly fixed together by welding or the like, or an integral structure made by integral molding .

[0070] The second embodiment: the sealing part 110 and the ablation part 120 have an integrated structure, and the ablation part 120 and the anchoring part 130 are connected by a connecting piece 30; similarly, the integrated structure can be directly fixed together by means of welding or the like The structure can also be an integral structure made of one-piece molding. The function of the connector 30 is to connect the ablation part 120 and the anchor part 130 together, so the structure of the connector 30 is not limited, it can be in any shape according to the different structures of the ablation part 120 and the anchor part 130, for example, in ablation Between the part 120 and the anchor par...

Embodiment 1

[0102] Such as Figure 1-3 As shown, the left atrial appendage occlusion ablation device is composed of three parts: a sealing part 110 , an ablation part 120 and an anchoring part 130 . Wherein the sealing portion 110 is located in the proximal region, and further includes a grid structure 111, one or more layers of flow-blocking films 112, and a connection end 113; the flow-blocking film 112 is fixed inside the mesh wire skeleton 111 by suturing, The blocking film 112 can be selected from PET or PTFE covering film; the proximal end of the sealing part 110 is provided with a connection end detachably connected with the conveyor. The connecting end 113 is located at the center of the end surface of the proximal end, preferably using a bolt head.

[0103] Such as Figure 1-2 As shown, in this embodiment, the sealing part 110, the ablation part 120 and the anchoring part 130 have a three-in-one structure, that is, the grid structure 111 of the sealing part 110, the ring-shaped...

Embodiment 2

[0120] Such as Figure 8 As shown, the left atrial appendage occlusion ablation device 100 of this embodiment is also composed of three parts: the sealing part 110 , the ablation part 120 and the anchoring part 130 . The sealing part 110 , the ablation part 120 and the anchoring part 130 are three-in-one. The sealing part 110 is a stuffing sealing part formed by a grid structure 111 for sealing the neck of the left atrial appendage, and the stuffing sealing part is consistent with the shape of the neck of the left atrial appendage. The anchoring body 131 is a cylindrical structure, the distal end of the cylindrical structure is closed, and the proximal end of the cylindrical structure is integrated with the ablation part 120 .

[0121] The structures of the sealing part 110, the ablation part 120 and the anchoring part 130 of this embodiment are the same as those of the first embodiment, and the main difference is that the outer wall of the ring-shaped skeleton 121 is provide...

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Abstract

The invention discloses a left atrial appendage occlusion and ablation device. The device includes a sealing portion located at a near end and used for closing left atrial appendage, and an anchoringportion located at a far end and used for anchoring the device in the left atrial appendage; the device further includes the ablation portion used for performing annular ablation on the inner wall adjacent to an opening of the left atrial appendage; the ablation portion includes an electrode used for adhering to the to-be-ablated inner wall of the left atrial appendage, and the electrode is electrically connected with a radio frequency source; and the ablation portion is at least insulated from a portion of the ablation portion that is in contact with the electrode. The invention provides theleft atrial appendage occlusion and ablation device which is capable of simultaneously achieving occlusion and ablation of the left atrial appendage, is simple to operate, is convenient to use, and does not produce significant influence on a surgical mode and operation time.

Description

technical field [0001] The invention belongs to the technical field of interventional medical devices, and relates to a left atrial appendage blockage and ablation device. The device uses percutaneous puncture to transport it to the position of the left atrial appendage through a delivery catheter, and can simultaneously realize the blockage and ablation of the left atrial appendage. ablation. Background technique [0002] Atrial fibrillation (abbreviated as atrial fibrillation) is the most common sustained arrhythmia, and with age, the incidence of atrial fibrillation continues to increase, reaching 10% in people over 75 years old. During atrial fibrillation, the frequency of atrial excitement reaches 300-600 beats / min, and the heartbeat frequency is often fast and irregular, sometimes up to 100-160 beats / min. Effective retraction function. The prevalence of atrial fibrillation is also closely related to diseases such as coronary heart disease, hypertension and heart fail...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61B18/14
CPCA61B17/12031A61B17/12122A61B17/12177A61B18/14A61B2018/1405A61B2018/00351A61B17/12172
Inventor 王永胜唐闽张澍李建民吴俊飞丘家明
Owner 杭州诺芮医疗科技有限公司
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