Bicuspid percutaneous aortic valve incision device

Abstract

The invention discloses a bicuspid percutaneous aortic valve incision device, which comprises a conveying device and a cutting device; the conveying device comprises an outer sheathing canal, a middle sheathing canal and a hollow inner sheathing canal; the inner sheathing canal is movably sheathed in the middle sheathing canal; the middle sheathing canal is movably sheathed in the outer sheathing canal; the cutting device comprises two fixed mounts and blades respectively arranged on the fixed mounts; the length of each fixed mount is greater than the external diameter of the outer sheathing canal; the fixed mounts are rotatably arranged on the excircle surface of the far end of the inner sheathing canal; when the inner sheathing canal shrinks into the middle sheathing canal, the fixed mounts and the inner sheathing canal are axially contained in the middle sheathing canal in parallel; when the inner sheathing canal extends out of the outer sheathing canal, the two fixed mounts are fixedly arranged on the excircle surface of the inner sheathing canal in a straight line. The invention provides the bicuspid percutaneous aortic valve incision device which is simple in structure, does not need to implant outside matter and has a good treatment effect, so that the defects that surgery sequelae are numerous and the recovery degree is low due to the fact that the fixed mounts need to be implanted by adopting the existing novel aortic valve replacement are solved.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a two-leaf percutaneous aortic valve opener. Background technique [0002] Aortic stenosis (Aortic Stenosis, AS) is one of the common valvular diseases. The congenital malformation of the aortic valve is the main disease of heart disease in infants and young children. The valve of the baby has a three-leaflet structure, and some have two leaflets fused into two leaflets during fetal development. The valve function is normal in the early stage of birth, but with age, the valve gradually thickens, calcifies, and the valve narrows. [0003] For a long time, surgical aortic valve replacement was the only treatment recognized as effective in the long term. However, based on the high-risk assessment of surgical operations and concerns about postoperative complications, 1 / 3-2 / 3 patients still give up surgical treatment. Therefore, once symptoms appear, the average m...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a two-leaf percutaneous aortic valve opener with simple structure, no need to implant foreign substances, and good therapeutic effect, so as to solve the needs of the existing new aortic valve replacement surgery. Defects of many surgical sequelae and poor recovery caused by the implantation of the fixation frame

Images