False lumen occlusion device

Abstract

The invention discloses a false lumen occlusion device which is a hollow cylinder structure as a whole; the outer wall of the cylinder structure is weaved with metal wires; the cross section of the cylinder structure is enclosed by a first edge having large curvature and a second edge having small curvature. In practical application contexts, one side, close to an original blood vessel wall, inside the false lumen is arc shaped, which has large curvature; while due to the elasticity or a little of tightness of an organ itself of a decollement part which has large curvature; therefore, the false lumen occlusion device of the invention is improved to be a semicircular column structure, which increases the fitting effect with the false lumen inner walls.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a false lumen blocking device for aortic dissection. Background technique [0002] The aorta is the thickest artery in the body. Aortic dissection (aortic dissection) is due to a rupture in the intima and media of the aorta, and blood flow into the aortic wall causes separation of the media of the vessel wall. Generally acute onset, the hazards in the acute stage are firstly that dissection can directly cause aortic rupture and massive hemorrhage and death; secondly, dissection may involve important branch vessels or cause occlusion of the true lumen, resulting in ischemia of organs and limbs that may lead to death or disability. Patients who are lucky enough to survive the acute phase will gradually form a dissecting aneurysm due to damage to the aortic wall, eventually rupture and die. Therefore, solving the problem of dissection tear closure and false lumen closure c...

AI Technical Summary

Problems solved by technology

However, the cross-sectional shape of the occluder does not fit perfectly with the inner wall of the false lumen, which affects the therapeutic effect.

Images