Papillary muscle exposure auxiliary device for mitral valve repair

Abstract

The invention discloses a papillary muscle exposure auxiliary device for mitral valve repair. The device comprises a supporting ring (1); a threaded hole (2) extending into the annular wall of the supporting ring (1) is formed in the end face of the top end of the supporting ring (1); the bottom end of the threaded hole (2) is connected with a chute (3) formed in the annular wall of the supportingring (1); the threaded hole (2) is in threaded connection with a screw (4); the bottom end of the screw (4) is rotationally connected with a sliding block (5); the sliding block (5) is slidably connected with the chute (3) and further penetrates a receding groove (6) formed in the annular wall of the supporting ring (1) to be connected with the top end of an elastic strip (7); and the bottom endof the elastic strip (7) is fixedly arranged on the supporting ring. The device has the characteristics of convenient operation, flexible use and high safety.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an auxiliary device for papillary muscle exposure in mitral valve repair. Background technique [0002] Mitral valve repair is an effective way to treat mitral valve disease. Compared with mitral valve replacement, mitral valve repair retains its own valve leaflets, which not only avoids the risks of anticoagulation complications and valve failure caused by valve replacement, Moreover, good hemodynamics of the valve are preserved. Mitral valve repair techniques are complex and changeable, and the appropriate repair technique is mainly based on the mechanism that causes mitral valve regurgitation. Artificial chord implantation is the best way to repair mitral valve regurgitation caused by rupture of mitral valve chord or redundant chord. In the process of implanting the artificial chordae, the artificial chordae must be precisely positioned on the papillary muscle corresponding to...

AI Technical Summary

Problems solved by technology

During the implantation of artificial chordae, the artificial chordae must be precisely positioned on the papillary muscle corresponding to the ruptured autogenous chordae, which is one of the key links in this technique; The papillary muscle is located in the left ventricle, its position is relatively deep, and it is blocked by the valve leaflets, so it is often difficult to obtain good exposure during the operation

At present, there is no surgical instrument specially used to expose the papillary muscle in the process of mitral valve repair, which makes the operation of chordal implantation difficult, the positioning is inaccurate, the operation time is prolonged, and the operation effect is not good; in addition, inappropriate violent traction Not only will it damage the mitral valve leaflets, but it also has the risk of damaging the left ventricular myocardium and causing serious complications such as heart rupture

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