Annuloplasty operator and annuloplasty system

Abstract

The invention provides an annuloplasty operator and an annuloplasty system. The annuloplasty operator comprises at least three ground anchors, a centralized control part and a plurality of independent control parts, wherein the centralized control part comprises a driving gear and a plurality of driven gears in transmission connection with the driving gear; each independent control piece comprises a movable rod and an elastic piece connected to the far end of the movable rod in an abutting mode, and the far ends of the at least three movable rods are each correspondingly connected with an anchor nail. The driven gears are in transmission connection with the elastic pieces correspondingly; the driving gear drives all the driven gears, and all the driven gears drive all the movable rods and the corresponding rivets to move towards the far end through all the elastic pieces. When the far end of one anchor nail is blocked, the corresponding elastic piece is axially compressed, and the corresponding movable rod and the anchor nail independently stop moving. According to the annulus forming operator, the far ends of the anchors can abut against different concave or convex positions on the annulus, and all the anchors can be completely matched with the real 3D structure of the annulus after being anchored into the annulus.

Description

technical field [0001] The present application belongs to the technical field of medical devices, and in particular, relates to an annuloplasty manipulator and an annuloplasty system. Background technique [0002] Heart valves (including mitral valve, tricuspid valve, etc.) are composed of annulus, leaflets, chordae and papillary muscles. In order to realize the integrity of the valve function, it is required that the size of the valve ring is appropriate, the structure of the valve leaflets is complete, and the contraction of the papillary muscles pulls the chordae to perform the closing function of the valve leaflets. Annulus dilatation, one of the most common causes of valvular heart disease, causes the leaflets to separate from each other during ventricular systole, creating gaps that can no longer close or coapt effectively, resulting in regurgitation of blood and reducing blood output to the heart . [0003] Annuloplasty for valve annulus expansion is an important pr...

AI Technical Summary

Problems solved by technology

[0004] The prior art discloses an interventional annuloplasty manipulator. An expandable annular nickel-titanium stent is delivered to the valve annulus. Several helical anchors are embedded in the circumferential edge of the annular nickel-titanium stent, and then several The helical anchors are anchored into the annulus tissue in turn, and finally the ring-shaped nickel-titanium stent shrinks to achieve the purpose of shrinking the ring, realizing the delivery of multiple anchors at one time, and the operation is relatively convenient, but there are still obvious defects: after the ring-shaped nickel-titanium stent is deployed 1. Before the anchors are anchored into the valve annulus, the distal ends of multiple anchors are basically flat, but different parts of the actual valve annulus surface have depressions and protrusions respectively, and the distal ends of some anchors can touch the valve annulus. Annulus, while the distal ends of other anchors do not touch the annulus. Correspondingly, after the same anchoring operation is performed on each anchor, those anchors that did not touch the annulus at first may still not be anchored into the annulus or the anchor The amount of injection is small, so the annuloplasty manipulator cannot make all the anchors fit into the real 3D structure of the annulus, and the effect of shrinking the ring will be affected

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