Valvuloplasty ring repairing device

Abstract

The invention discloses an annuloplasty ring repairing device which comprises an annuloplasty ring body. Comprising at least two metal strips, end metal pipes arranged at the ends of the metal strips in a sleeving mode, connecting part metal pipes arranged between every two adjacent metal strips in a sleeving mode and elastic contraction pieces which are connected between the end metal pipes and the connecting part metal pipes and have a shape memory function. The two end metal pipes are connected through a buckle assembly, so that the forming ring body is connected end to end to form an annular structure. By means of the design, compared with a rigid folding type forming ring structure, the conveying diameter is smaller, the overall strength is slightly lower than that of a rigid folding type structure, and the needed supporting strength can be met; and compared with a silica gel forming ring of a flexible forming ring, the overall supporting strength is higher. Compared with a traditional forming ring structure for achieving forming ring contraction by pulling a contraction line, automatic contraction is achieved through the elastic contraction piece with the shape memory function, the operation steps are fewer, and the operation efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a valve annuloplasty ring repair device. Background technique [0002] Mitral annuloplasty is the treatment of mitral regurgitation heart valve disease by implanting an artificial mitral annuloplasty ring. Prosthetic mitral valvuloplasty rings are used as part of mitral valvuloplasty to aid in the correction of heart valve defects such as mitral regurgitation. The mitral valve includes the mitral valve annulus, valve leaflets, papillary muscles, and chordae tendineae. Mitral regurgitation is the backflow of blood from the left ventricle through the mitral valve to the left atrium when the left ventricle contracts. The dilation of the mitral valve annulus can cause problems with the shape and function of the ventricle, which can impair the function of the valve. [0003] For the surgical treatment of mitral regurgitation, mitral valve repair has significant advantages o...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the inelastic ring of the mitral annuloplasty ring in the prior art is easy to reduce the stroke volume of the ventricle and affect the pumping function of the left ventricle of the heart, thereby providing a device for repairing the annuloplasty ring

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