Flexible plugging device and aortic dissection inner membrane breach plugging method

A technology of aortic dissection and occluder, which is applied in the fields of medical science, surgery, ligation, etc., can solve the problems of inaccurate embolization effect, unsatisfactory long-term effect, and complicated operation, so as to reduce the risk of detachment from the breach , Conducive to popularization and application, the effect of simple operation steps

Active Publication Date: 2018-06-22
胡锡祥 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Flexible plugging device and aortic dissection inner membrane breach plugging method
  • Flexible plugging device and aortic dissection inner membrane breach plugging method
  • Flexible plugging device and aortic dissection inner membrane breach plugging method

Examples

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Effect test

Embodiment 1

[0039] Such as Figure 5 to Figure 13 A flexible occluder 50 is shown, which can be mainly used to occlude the intimal tear in aortic dissection, and is especially effective for the break in the visceral artery region, which includes a compressible hollow tube 503 and a self-expandable flexible filling strip 504 The "self-expanding type" described in this embodiment means that it can be compressed and can be expanded and restored to its original shape after compression; the hollow tube 503 is in the shape of a strip, and the hollow tube 503 is divided into the first half along its length direction 512 and the second half 513 connected with the first half 512, that is to say, the hollow tube 503 is divided into two sections, one of which is the first half 512, and the other is the second half 513, wherein the flexible filling strip 504 fills in the lumen 505 of the first half of the hollow tube, while the lumen 505 of the second half of the hollow tube is left empty. In this e...

Embodiment 2

[0058] Such as figure 1 , Figure 3 to Figure 16 Shown, a kind of aortic dissection intimal breach closure method, comprises the steps:

[0059] Step S10: providing the flexible occluder 50 described in Embodiment 1;

[0060] Step S20: sending the compressed flexible occluder 50, wherein, the first half part 512 of the hollow tube passes through the opening 40 so that part of the first half part 512 of the hollow tube stays in the vascular false lumen 30 and the other part stays in the false lumen 30 In the true lumen 20 of the blood vessel, in this embodiment, preferably, the length of the first half of the hollow tube left in the false lumen 30 is more than 2 cm, and the second half of the hollow tube stays in the true lumen of the blood vessel;

[0061] Step S30: releasing the flexible occluder 50, the expansion of the flexible filling strip 504 causes the first half 512 of the hollow tube to follow the expansion of the flexible filling strip 504 to seal the breach 40; th...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12
CPCA61B17/12109A61B17/1214
Inventor 胡锡祥缪健航
Owner 胡锡祥
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