Transcatheter ring contraction system

Abstract

The invention provides a transcatheter ring contraction system. The transcatheter ring contraction system comprises a forming ring, at least two rivets and a rivet implanting device. The rivet implanting device comprises at least two rivet feeding sutures; the far end of the folded nail feeding suture is hung on the outer surface of the forming ring in a penetrating mode, and the two free ends of the nail feeding suture extend out of the body; the forming ring is roughly straight during conveying, the forming ring is in an arc shape or an annular shape in a natural state, and when the forming ring rebounds to be in an annular shape or an arc shape and is attached to a preset treatment site, the rivets are conveyed to the forming ring along the rivet feeding sutures, and the forming ring is fixed to the treatment site. According to the transcatheter ring shrinking system, the fixing positions of the multiple rivets can be accurately arranged, the multiple rivets can be evenly distributed conveniently, the ring shrinking effect is improved, and operation is easy.

Description

technical field [0001] The invention belongs to the field of medical equipment, and relates to an interventional treatment equipment for valve diseases, in particular to a transcatheter ring shrinkage system. Background technique [0002] Mitral valve regurgitation is a common heart valve disease, the cause of which is the anastomosis of the anterior and posterior leaflets of the mitral valve due to organic or functional changes in the leaflets, annulus, papillary muscles, chordae and other components of the mitral valve bad. The traditional standard treatment is surgery, mainly including valve repair or valve replacement, among which mitral annuloplasty is a common repair method. [0003] In recent years, a variety of interventional medical devices for the treatment of mitral regurgitation have appeared. An interventional annuloplasty ring disclosed in the prior art uses a transcatheter route to sequentially implant multiple rivets to gradually connect the annuloplasty ri...

AI Technical Summary

Problems solved by technology

This technology has the following disadvantages: 1. Implantation of rivets is carried out synchronously with delivery of the annuloplasty ring. The rivets are wrapped in the forming ring, and the forming ring is gradually sent out by pushing out the rivets one by one. With the adjustment and uncertainty of the rivet position, the forming ring The position will also change accordingly, which will eventually affect the position accuracy and treatment effect of the forming ring connected to the natural valve ring, and increase the risk of surgery; The rivet itself is not connected to the forming ring in the forming ring. With the beating of the heart, it is difficult to grasp the exact rivet implantation position, which will lead to uneven arrangement of the rivets and affect the effect of shrinking the ring; 3. During the operation, In order to ensure that the rivets are evenly arranged as much as possible, the doctor's professionalism and equipment proficiency are highly required, and the operation is difficult

Images