Flexible plugging device and aortic dissection inner membrane breach plugging method

Abstract

The invention relates to a flexible plugging device and an aortic dissection inner membrane breach plugging method. The flexible plugging device includes a compressible hollow pipe and a self-expanding flexible filling strip; the hollow pipe is in a strip shape and is divided into a front half part and a rear half part connected with the front half part in the length direction, wherein a pipe cavity of the front half part of the hollow pipe is filled with the flexible filling strip, and a pipe cavity of the rear half part of the hollow pipe is hollow. The aortic dissection inner membrane breach plugging method includes the following steps of providing the flexible plugging device, introducing the compressed flexible plugging device, releasing the flexible plugging device and fixing the rear half part of the hollow pipe. The provided flexible plugging device is simple in structure and convenient to produce and manufacture. The provided plugging method is simple in operation procedure. The structure is simple, the operation procedures are convenient, more convenience is provided for application and popularization, and after the rear half part of the flexible plugging device is fixed,the risk that the flexible plugging device detaches from a breach can be reduced.

Description

technical field [0001] The invention relates to a flexible occluder and a method for occluding aortic dissection intima breach. Background technique [0002] Type B aortic dissection generally has a proximal tear under the aortic arch, and most visceral arteries have a second tear. At this stage, most clinicians generally deal with the proximal tear first when endovascular treatment of aortic dissection, such as figure 1 As shown, the distal tear 40 is difficult to handle due to its proximity to the celiac artery 70 , the superior mesenteric artery 80 , and the bilateral renal arteries 90 , so in most cases, the distal tear is generally observed. During the follow-up, the outcome of the distal tear was generally no change, spontaneous shrinkage, healing or continued enlargement. With the prolongation of time, the proportion of distal false lumen increases year by year. Therefore, in recent years, the opinions on the treatment of distal rupture of aortic dissection generall...

AI Technical Summary

Problems solved by technology

[0008] The above methods are only applied in a small area due to the complicated operation, and the long-term effect is still unsatisfactory.

Some people also try to apply local embolization therapy, using ordinary coils or occluders to occlude the embolism breach, but due to the complex hemodynamics of the dissection, the coils and occluders are not easy to fix, and the embolization effect of the breach is inaccurate, and It is easy to fall off and cause vascular embolism, so breach embolization is generally not widely used

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