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Percutaneous aortic valve replacement device

An aortic valve and aortic technology, applied in the field of medical devices, can solve the problems of high surgical risk, inconvenient and difficult suturing of valves and stents, and achieve the effects of reducing surgical pain, reducing medical expenses, and prolonging life

Inactive Publication Date: 2006-07-12
孔祥清
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Problems solved by technology

[0007] The purpose of the present invention is to solve the problems that the existing percutaneous aortic valve replacement device is inconvenient to suture the valve and the stent so that it is difficult to suture completely, and the need to use a balloon to pre-expand the aortic valve during the operation has a high surgical risk. A novel percutaneous aortic valve replacement device with reasonable structure, convenient use and low surgical risk

Method used

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  • Percutaneous aortic valve replacement device
  • Percutaneous aortic valve replacement device

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Embodiment Construction

[0024] The following structural drawings and embodiments further illustrate the present invention.

[0025] Such as figure 1 , 2 shown.

[0026] A percutaneous aortic valve replacement device, comprising a grid-like stent 1 braided by nickel-titanium alloy wire, a three-leaflet valve 2, and the three-leaflet valve 2 is composed of porcine pericardium that has undergone anti-calcification treatment, and the three-leaflet unidirectional opening The valve is sewn, and it is fixed in the stent 1 through the polytetrafluoroethylene membrane 3 that is connected with the stent 1 in the circumferential direction. 4. One end of the aortic stent 6 is a bottomless structure that is convenient for supplying blood to the aorta. The other end of the outflow tract stent 4 is a bottomless structure that facilitates the inflow of left ventricular blood, and the diameter of the bottomless structure end of the aortic stent 6 is greater than the bottomless structure end of the left ventricular...

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Abstract

The invention provides a new percutaneous aortic valve replacing device which is characterized by the rational designation, convenient usage and low operational danger, which is to solve problems of inconvenient stitching of valve and cradle and high danger of using saccule to expand aortic valve in current aortic valve replacing device, the device is an automatic buckling cradle carrying biological valve, comprising cradle in nickel-tantalum alloy framework and trilobular one-way opening valve composed of pig heart bag. The nickel-tantalum alloy possesses functions of fixing and supporting, the trilobular valve is fixed tightly in the cradle. The product is characterized by the small injury, high safety, reduced complication caused by aortic valve replacement, and wide application prospect.

Description

technical field [0001] The invention relates to a medical device, in particular to an artificial aortic valve used in the Department of Cardiology, which can replace the aortic valve without surgery, in particular to a percutaneous aortic valve replacement device. Background technique [0002] Since Starr and Harken succeeded in replacing the mitral valve and aortic valve for patients with artificial valves respectively in 1960, surgical valve replacement is the most effective method for the treatment of severe heart valve diseases, and valve replacement is performed for more than 100,000 patients every year Operation. Artificial valves are divided into two categories: biological valves and mechanical valves. There are more than 100 types, each with its own advantages and disadvantages in clinical use, and the vast majority of artificial valve replacement operations are performed with the support of a systemic pulmonary circulation machine, which makes infants with complicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/02A61F2/06A61F2/24A61B17/00
Inventor 孔祥清
Owner 孔祥清
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