Endovascular repair graft for treating aortic dissection false lumen
A technology for aortic dissection and grafts, which is applied in the field of medical devices, can solve the problems of being unable to block the blood flow of the false lumen, and achieve the effects of increasing the difficulty of blood flow in and out, blocking the blood flow of the false lumen, and accelerating the internal embolization
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Embodiment 1
[0034] Such as figure 1 , 2 The shown endoluminal repair graft for treating the false lumen of aortic dissection is characterized in that it consists of a blocking member and a delivery device, wherein:
[0035] The body 1 of the blocking member is a cylindrical structure woven by wire mesh, and the surface of the cylindrical structure is covered with a film 2 so that the blocking member forms a closed cavity.
[0036] This occluder is different from the existing occluder repair device placed in the aortic vessel to precisely cover the breach, but a closed stent graft that fully covers multiple or even all breaches , at the same time, because both ends in the axial direction are covered with membranes, it is a closed cylinder itself, and its shape and mechanics are strictly suitable for the false cavity, which can basically or even completely fill the false cavity, increasing the difficulty of blood flow in and out, Blocking the blood flow in the false lumen and accelerating t...
Embodiment 2
[0038] The rest is the same as that of Embodiment 1, and a spiral concave drug-carrying pipeline is formed on the film outside the body of the blocking member. A spiral concave drug-carrying channel can be formed on the outer surface of the occluder, and drugs for treatment are placed in the drug-carrying channel, for example, coagulant-promoting drugs such as thrombin and growth-promoting drugs such as fibroblast growth factor are loaded. After the occluder is sent into the false lumen for release and fixed, the drug in the drug-loaded pipeline starts to release the drug, achieving quantitative and targeted sustained release.
Embodiment 3
[0040] An endoluminal repair graft for treating the false lumen of aortic dissection, the rest are the same as in Example 2, the models of the plugging parts have a diameter of 10-50mm, with a difference of 5mm, and a length of 100-300mm, with a difference of 50mm. Difference.
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