Integrated anchoring piece and anchoring system

Abstract

The invention provides an integrated anchoring piece. The integrated anchoring piece comprises an anchoring part, a base fixedly connected with the near end of the anchoring part and a lock cylinder arranged in the base; a variable-diameter section is formed in the base; the diameter of the variable-diameter section is gradually reduced from the near end to the far end; the lock cylinder comprises two elastic arms which are oppositely arranged; two elastic arms are provided with wire locking structures which are matched with each other and blade parts which are arranged at the near ends of the wire locking structures; an artificial chordae tendineae is arranged between the two elastic arms in a penetrating mode; and two elastic arms move towards the far end relative to the variable-diameter section, so that the variable-diameter section gradually extrudes two elastic arms, the wire locking structures are gradually folded from the far end to the near end to lock the artificial chordae tendineae till the blade parts cut off the artificial chordae tendineae. The integrated anchoring piece integrates the functions of anchoring, locking and cutting off the artificial chordae tendineae. The invention further provides an anchoring system which comprises the integrated anchoring piece and a conveyor.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an integrated anchor and an anchor system. Background technique [0002] In the repair surgery for mitral regurgitation (MR), traditional surgical operations are traumatic and risky, and there is a great demand for minimally invasive repair of mitral regurgitation in clinical practice. Interventional minimally invasive treatment of mitral valve regurgitation has the advantages of less trauma and fewer complications. The implantation of artificial chordae is a kind of interventional mitral valve repair. Its operating principle is: the suture is sent into the left ventricle through the catheter, so that one end of the suture is fixed to the mitral valve leaflet, and the other end of the suture is One end is connected to the left ventricular myocardial wall or papillary muscle through an anchor to form an artificial chord. However, there are still the following technical p...

AI Technical Summary

Problems solved by technology

However, there are still the following technical problems: the anchors used in the implantation of artificial chordae have a single function, and are generally only used to anchor into the ventricular wall or papillary muscle, and additional instruments need to be introduced to lock the artificial chord and the anchor , and the introduction of additional instruments to cut off the artificial chord, that is, when the existing anchor is used for transcatheter repair of the chord, the anchoring of the anchor, the locking of the artificial chord and the anchor, and the cutting of the artificial chord are respectively Separate instruments are required, so different instruments need to be replaced and introduced during the operation, the operation is more complicated, the number of instruments to be used is large, and the cost is high

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