Aortic dissection crevasse plugging device

A technology of aortic dissection and occlusion device, which is applied in the field of medical devices, can solve the problems of difficult embolization of false lumen blood flow, new breaches, etc., and achieve the effects of facilitating recovery, firm anchoring, and improving the stability of the disease

Inactive Publication Date: 2021-11-09
BEIJING PERCUTEK THERAPEUTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a kind of aortic dissection breach sealing device, to alleviate existing in the prior art when using covered stent, grid support and occluder etc. to treat the aortic dissection with insufficient healthy anchoring area: Need to dilate the fragile intima or use the fragile intima as the anchoring area to easily form a new breach, and the problem that the blood flow in the false lumen is difficult to embolize

Method used

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  • Aortic dissection crevasse plugging device
  • Aortic dissection crevasse plugging device
  • Aortic dissection crevasse plugging device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In this example, if figure 1 and figure 2 shown, refer to Figure 6 , the occlusion filling part includes an elastic mesh basket 2 and an occlusion membrane 3; the elastic mesh basket 2 is connected to one side of the tubular mesh stent 1, and after being implanted into the human body and released, the elastic mesh basket 2 passes through the aorta The breach 111 of the intima 110 protrudes into the false lumen 200 and fills the false lumen 200; the blocking film 3 is set at the part where the tubular grid support 1 and the elastic basket 2 are connected, and the blocking film 3 is connected to the tubular The mesh support 1 and / or the elastic mesh basket 2 and the blocking film 3 are used to prevent blood from flowing into the elastic mesh basket 2 from the inner space of the tubular mesh support 1 . Among them, "and / or" means that the blocking film 3 is connected to the tubular grid support 1 or the elastic basket 2, or, one end of the blocking film 3 is connected ...

Embodiment 2

[0056] Different from Embodiment 1, in this embodiment, if image 3 , Figure 5 and Figure 6 As shown, the plugging and filling part includes an elastic basket 2 and a basket coating 4, the elastic basket 2 is connected to one side of the tubular grid support 1, the elastic net basket 2 is connected to one side of the tubular grid support 1, and the plant After entering the human body and being released, the elastic mesh basket 2 extends into the false lumen through the breach of the aortic intima and fills the false lumen; the mesh basket coating 4 covers the surface connected to the elastic mesh basket 2; the elastic mesh The basket 2 communicates with the inner space of the tubular grid support 1 through the part connected to the tubular grid support 1, and is used to fill the inside of the elastic net basket 2 with a filler 6. The filler 6 can be but not limited to a spring coil, etc. things.

[0057] The connection between the elastic net basket 2 and the tubular grid...

Embodiment 3

[0060] Different from Embodiment 1 and Embodiment 2, in this embodiment, if Figure 4 , Figure 5 and Figure 6 As shown, the occlusion filling part includes an elastic film-coated bag 5, which is connected to one side of the tubular grid support 1. After being implanted into the human body and released, the elastic film-coated bag 5 passes through the main body. The opening of the arterial intima extends into the false lumen 200 and fills the false lumen 200; the elastic film-covered pocket 5 communicates with the inner space of the tubular mesh stent 1 through the part connected to the tubular mesh stent 1, and is used for The interior of the elastic film-coated pocket 5 is filled with fillers 6 .

[0061] The connecting portion of the elastic film-coated pocket 5 and the tubular grid support 1 is as follows: Figure 4Shown is a waist structure, the "waist" is a connected structure; the cross-section of the "waist" is a circle or ellipse corresponding to the opening conto...

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PUM

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Abstract

The invention provides an aortic dissection crevasse plugging device, and relates to the field of medical apparatus and instruments. The aortic dissection crevasse plugging device comprises a tubular grid stent and a plugging filling portion capable of preventing blood in an aortic true lumen from flowing into a false lumen from an intima crevasse; the plugging filling portion is connected to one side of the tubular grid stent; in the state that the aortic dissection crevasse plugging device is implanted into a human body and released, the tubular grid stent is supported on the inner wall of the aortic true lumen, a part of the plugging filling portion penetrates through the aortic intima crevasse to stretch into the false lumen and fill the false lumen, the plugging filling portion in the false lumen is supported on the inner wall of the false lumen, and the portion, connected with the plugging filling portion in the false lumen, of the tubular grid stent plugs the edge of the aortic intima crevasse. The aortic dissection crevasse plugging device at least solves the problems that in the prior art, when a covered stent, a grid stent, a plugging device and the like are used for treating an aortic dissection with an insufficient healthy anchoring area, a fragile intima needs to be expanded or a new crevasse is likely to be formed with the fragile intima as the anchoring area, and blood flow in the false lumen is difficult to suberize.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an aortic dissection breach sealing device. Background technique [0002] The aorta is composed of three layers, which are called intima, media and adventitia respectively; aortic dissection (Aortic Dissection, AD) refers to blood entering the aortic media from a breach (tear) in the aortic wall Driven by the pulse pressure, the blood in the aortic lumen separates the media and expands along the long axis of the aorta, separating the aortic wall into a true and false lumen. The true lumen refers to the original normal blood flow vessel. Lumen, while false lumen refers to the newly torn pathological lumen. [0003] Aortic dissection is a cardiovascular disease that seriously threatens human health, with rapid onset, rapid progression and high mortality. The lesion location of aortic dissection is the core factor in determining the surgical approach. Aortic dissectio...

Claims

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Application Information

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IPC IPC(8): A61B17/12A61F2/90
CPCA61B17/12031A61B17/12118A61B17/12168A61B17/12177A61F2/90A61F2002/823
Inventor 喻晓男董永贺刘颖
Owner BEIJING PERCUTEK THERAPEUTICS CO LTD
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