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Plugging device for left auricle

A technology of occluder and occluder disc, which is applied in medical science, surgery, ligation, etc., can solve the problems of being stuck on the edge of the sheath tube wall, the occluder cannot be recovered, and the shape of the fixed disc becomes larger, so as to reduce damage, Soft structure, tension-reducing effect

Active Publication Date: 2015-02-18
SHENZHEN KYD BIOMEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anchoring thorns piercing the left atrium are repeatedly positioned, and when the occluder is recovered, it will be stuck on the edge of the sheath wall, making the occluder unable to be recovered, and repeated positioning
Moreover, the fixed plate of this hybrid left atrial appendage occluder usually deforms greatly to reverse the direction of the anchoring spines, causing the tension and deformation of the fixed plate to reach the limit value of the material
This device has poor fatigue strength in permanent implantation, and is prone to breakage, puncturing other tissues such as the heart, and endangering life

Method used

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  • Plugging device for left auricle
  • Plugging device for left auricle
  • Plugging device for left auricle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 , figure 2 and image 3 As shown, the left atrial appendage occluder involved in the present invention includes an occlusion disc 11, a connection disc 22 connected to the occlusion disc 11 and an anchor disc 33 connected to the connection disc 22, wherein as shown in FIG. 6 , the occlusion The disk 11 is braided with nickel-titanium wire to form a braided mesh structure, which is heat-treated into a disk shape, and the two ends are fixed with steel sleeves 111. One end of the plugging disk 11 is connected with the connection disk 22 with a steel sleeve 111, and the other end is provided with threads or such as Figure 13a , 13b One end shown has a plurality of metal wires 121 with a ball head, which are connected with the push rod 122 of the delivery device, and the connector 123 of the push rod 122 is as Figure 14 As shown, there is a depression 124 at the end of the connecting piece 123, which is matched with the protrusion at one end of the blo...

Embodiment 2

[0056] Such as Figure 4 As shown, the left atrial appendage occluder of the present invention includes an occlusion disk 11, a connection disk 22 connected to the occlusion disk 11 and an anchor disk 33 connected to the connection disk 22, the occlusion disk 11 and the occlusion disk 11. The connection plate 22 adopts an integrated design, and is woven into a braided mesh structure with nickel-titanium wire. The two ends are fixed with steel sleeves 111 and heat-treated to form a double-disc structure. There is a relatively small waist 128 between the sealing plate 11 and the connection plate 22. , one end of the connecting plate 22 is connected to the anchoring plate 33, such as Figure 13a and 13b As shown, the other end of the plugging disk 11 is provided with threads, and there are a plurality of metal wires 121 with ball heads at one end, which are connected with the push rod 122 of the delivery device. The flow film and the anchor disc 33 are a plurality of support ro...

Embodiment 3

[0058] Such as Figure 5 , 6a As shown in and 6b, the left atrial appendage occluder involved in the present invention includes an occlusion disk 11, a connection disk 22 connected to the occlusion disk 11 and an anchor disk 33 connected to the connection disk 22, the occlusion disk 11 and the closure disk 11. The connecting plate 22 connected to the blocking plate 11 adopts an integrated design, and is woven with nickel-titanium wire to form a braided mesh structure. Both ends are fixed with steel sleeves 111. After heat treatment, the connecting plate 22 is formed into a T-shaped plate structure. An elastic body, one end of the connecting disc 22 is connected to the anchoring disc 33, and the other end of the blocking disc 11 is provided with threads or such as Figure 13a , 13b As shown, there are a plurality of metal wires 121 with a ball head at one end, which are connected to the push rod 122 of the delivery device. The inside of the blocking disc 11 and the connecting...

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Abstract

The invention discloses a plugging device for a left auricle. The plugging device comprises a plugging disc, a connecting disc and an anchoring disc, wherein the plugging disc and the connecting disc are respectively formed by weaving nickel-titanium alloy wires and conducting heat treatment on the nickel-titanium alloy wires to form a disc-shaped structure; the diameter of the connecting disc is approximate to that of the anchoring disc; when the connecting disc is unfolded, the connecting disc provides supporting for the anchoring disc to stabilize the fixation of the anchoring disc inside the left auricle; the anchoring disc comprises a central end part connected with the connecting disc and a plurality of support rods connected with the central end part. The plugging device for the left auricle disclosed by the invention is used for blocking the left auricle, is high in effect of blocking blood clots inside the left auricle from flowing out, can be repeatedly positioned, is fixedly stable, and is resistant to fatigue.

Description

technical field [0001] The invention relates to a left atrial appendage occluder, which has good effect in blocking the outflow of thrombus in the left atrial appendage, can be positioned repeatedly, is fixed stably, and is fatigue-resistant. Background technique [0002] At present, with the development of interventional devices, many diseases that cannot be treated by surgical operations have been cured. Compared with surgical treatment, interventional therapy has less trauma, faster recovery and better curative effect. After nearly half a century of development, interventional therapy has developed rapidly, and various interventional medical device products have also been produced. Make more and more cures and patients get treatment. [0003] Atrial fibrillation (AF) is one of the most common arrhythmias. In addition to the discomfort caused by palpitations, the occurrence of complications such as thromboembolism is the most important hazard of atrial fibrillation. In ...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/0057A61B17/12122A61B17/12172A61B17/12177
Inventor 陈奕龙
Owner SHENZHEN KYD BIOMEDICAL TECH CO LTD
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