Valved conduit device for aortic root

Abstract

The invention relates to a valved conduit device for an aortic root. A transplanting conduit comprises an ascending aorta replacement tube and an aortic sinus replacement portion. A bioprosthetic valve comprises a bovine pericardium and a nickel-titanium support, wherein the nickel-titanium support is located outside the bovine pericardium, and the bovine pericardium is wrapped with the nickel-titanium support and fixed through the nickel-titanium support; the bioprosthetic valve is arranged in the aortic sinus replacement portion through an opening device, and is opened through the opening device to be closely attached to the inner wall of the aortic sinus replacement portion, the height of the nickel-titanium support is higher than the height of the aortic sinus replacement portion, and the nickel-titanium support is divided into an ascending aorta section and an aortic sinus section. According to the valved conduit device for the aortic root, the operation time of the aortic root is shortened, the biocompatibility is improved through the bioprosthetic valve, and the side effects brought by mechanical valve anticoagulation is reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a valve-carrying pipeline device for the aortic root that shortens the operation time of the aortic root, improves biocompatibility with a biological valve, and reduces side effects caused by mechanical valve anticoagulation. Background technique [0002] Aortic root disease includes diseases that affect the aortic valve, aortic annulus, aortic sinus, and sinotubular junction. In patients with some genetic diseases such as Marfan syndrome and Loyes-Diets syndrome, the ascending aorta and aortic sinus are often combined. Patients with other diseases such as syphilitic arteritis, Takayasu arteritis, and Behcet's disease are often combined with aortic root lesions. Nowadays, the incidence of hypertension and atherosclerosis is getting higher and higher, which makes the incidence of aortic dissection increasing day by day, and the mortality rate and disability rate of aortic dissection...

AI Technical Summary

Problems solved by technology

The simple suture-free valve is only suitable for patients with simple aortic valve disease, and it is more difficult for patients with ascending aortic disease to undergo ascending aorta replacement

[0005] The Bentall operation replaced a mechanical valve, which had a certain impact on the patient's quality of life and anticoagulation; although the David operation retained its own valve, it required extremely high surgical skills due to the complexity of the operation, and the long-term extracorporeal circulation brought great harm to the patient after surgery. Serious impact, high postoperative complications

Suture-free valves are suitable for patients with simple aortic valve disease, but it is more difficult for patients with ascending aortic disease requiring ascending aortic replacement

[0006] Chinese patent CN200620175187.X discloses a bioartificial pulmonary artery valved pipeline, which includes a bovine jugular vein with a venous valve, and one or two pipelines made of bovine pericardium tissue material are connected to the bovine jugular vein The upper end or the upper and lower ends are used to solve the problems of pipeline valve insufficiency and excessive adhesion in secondary operations. The authorized announcement number is CN200987711Y

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