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Anti-concave plugging device

A technology of occluder and occluder, which is applied in the field of medical devices, can solve the problems of accelerating the endothelialization process of the occluder surface, poor support force of the occluder disc, and difficult recovery, so as to reduce the probability of thrombus formation and increase Thickness and strength, the effect of improving the plugging effect

Pending Publication Date: 2022-06-28
NINGBO DIOCHANGE MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Flat ends are beneficial to accelerate the endothelialization process on the surface of the occluder, so that the left atrial appendage of the heart can be blocked by its own tissue earlier, but the shape of the occluder disk is not easy to recover, and the support force of the occluder Difference

Method used

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  • Anti-concave plugging device
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  • Anti-concave plugging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] In this embodiment, as figure 1 As shown, the occluder is the left atrial appendage occluder 1.

[0049] In this embodiment, as figure 2 As shown, the left atrial appendage occluder 1 at least includes a blocking part 2, the blocking part 2 has a three-dimensional shape, the blocking part 2 has a cavity 211, the cavity 211 has an axial height, and the blocking part 2 includes a blocking member 21; the blocking part 2 further includes one or more shape adjustment structures 22 arranged in the cavity 211, the shape adjustment structures 22 are arranged along the axial height and connected with the glacial blocking members 21, and all the shape adjustment structures 22 and the blocking members are connected. 21 is connected; after the left atrial appendage occluder 1 is released at the target position, the shape adjustment structure 22 can perform compliant shape conversion with the different shape changes of the occluder 21 so as to realize the axial distance between th...

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PUM

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Abstract

The invention relates to the field of medical instruments, in particular to an anti-concave plugging device which at least comprises a plugging part, and the plugging part is in a three-dimensional shape and comprises a plugging piece; wherein the plugging piece is provided with a cavity, and the cavity has an axial height; the plugging part further comprises one or more form adjusting structures arranged in the cavity, and the form adjusting structures are arranged in the axial height direction and connected with the plugging piece. After the plugging device is released at the target position, the form adjusting structure can conduct compliant form conversion along with different form changes of the plugging piece, so that axial distance adjustment of the near end and the far end of the plugging piece is achieved, and a series of problems caused by inward concave of the plugging part are avoided.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to an occluder for preventing concave, in particular to a left atrial appendage occluder, a ventricular septal defect occluder and a patent ductus arteriosus occluder. Background technique [0002] Atrial fibrillation is the most common clinical arrhythmia, with a prevalence of 0.4% to 1.0% in the general population. Its main harm is to promote thrombosis, and it is the main cause of complications such as ischemic stroke and peripheral vascular embolism. . Stroke is the most common and most harmful complication of atrial fibrillation, with an incidence rate of 1.9% to 18.2% and a related disability rate of up to 30%. Studies have shown that more than 90% of non-valvular and 60% of patients with valvular atrial fibrillation develop atrial thrombus in the left atrial appendage. The left atrial appendage is a curved, elongated tubular structure with a narrow apex. At the same time, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12A61B17/00
CPCA61B17/12109A61B17/12172A61B17/12177A61B17/0057A61B2017/1205A61B2017/00575A61B2017/00623A61B2017/00597A61B17/12122A61B2017/00592A61B2017/00606
Inventor 李彪李刚邵烨
Owner NINGBO DIOCHANGE MEDICAL TECH CO LTD