Guidable valve suturing device and valve suturing system

Abstract

The invention provides a guidable valve suturing device. The guidable valve suturing device comprises a clamping device and a puncture needle, the clamping device comprises a far-end chuck, a near-end chuck, a chuck push rod and a guide rod, the chuck push rod and the guide rod are fixedly connected and movably penetrate through the near-end chuck, at least one of the chuck push rod and the guide rod is fixedly connected with the far-end chuck, the far-end chuck is used for containing a suture, and the puncture needle movably penetrates through the near-end chuck and is used for puncturing a valve and being connected with the suture. The guide rod is arranged, the chuck push rod can be prevented from rotating, and it is guaranteed that the chuck push rod performs linear motion in the process of driving the far-end chuck and the near-end chuck to be opened and closed relatively, so that the relative positions of the far-end chuck and the near-end chuck do not deviate, the peripheral edges can be aligned all the time, the valve is effectively clamped, and the suture in the far-end chuck and the puncture needle are not misplaced and can be smoothly connected, so that the suture is implanted into the valve. The invention further provides a valve suturing system comprising the guidable valve suturing device.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a guideable valve suture device and a valve suture system. Background technique [0002] Heart valve disease is caused by the heart valves (including valves, chordae (such as figure 1 The structural damage, fibrosis, adhesion, shortening, myxomatous degeneration, degenerative changes or congenital malformation, trauma, etc. caused by single valve or multiple valve function or structure abnormalities , leading to valve stenosis and insufficiency. [0003] see figure 1 , left atrium (eg figure 1 LA shown) and the left ventricle (as shown figure 1 LV shown) between the mitral valve (eg figure 1 MV shown) separates the right atrium (eg figure 1 RA shown) and right ventricle (as shown figure 1 RV shown) is formed by the tricuspid valve (eg figure 1 Shown TV) separated, tricuspid valve and mitral valve so that blood can only flow from the atrium into the ventricle, but ...

AI Technical Summary

Problems solved by technology

Mitral regurgitation or tricuspid regurgitation can cause systolic ventricular blood to flow back into the atrium, causing the atria to expand in volume and pressure, leading to increased ventricular load and predisposing to heart failure

[0006] On the one hand, in actual use, the operator may cause the chuck push rod to rotate due to improper operation or uncontrollable factors, so that the distal chuck 310a and the proximal chuck 320a are misaligned and cannot be aligned, which affects the clamping effect on the valve.

On the other hand, the above-mentioned interventional heart valve repair instrument 100a needs to penetrate the apex of the heart through the transthoracic approach, so it will still cause certain damage to the human body. When the instrument passes through the curved blood vessel, the chuck push rod also needs to have a certain degree of flexibility to bend with the sheath, the chuck push rod is easy to rotate, and the distal chuck and the distal chuck driven by the chuck push rod The relative movement between the proximal chucks may no longer be a linear motion, so the relative positions of the distal chuck and the proximal chuck are prone to shift, so that the suture in the distal chuck may collide with the puncture needle. Misalignment, so that the needle cannot connect to the suture, and the suture cannot be inserted into the valve smoothly

Images