Annulus repair device and method of use thereof
A valve ring and technology to be repaired, applied in the direction of application, heart valve, puncture needle, etc., can solve the problems of high incidence of complications and mortality, and achieve the effect of low incidence of surgical complications, wide application range, and small trauma
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Embodiment 1
[0043] The preferred embodiment discloses a valve ring repair device. Such as Figure 1 to Figure 9 As shown, the annulus repair device includes an outer sheath 1 with a controllable bending angle, a puncture catheter 2 arranged at the front end of the outer sheath 1 , a rivet 3 arranged in the puncture catheter 2 , a connecting wire 4 connected to the rivet 3 , And the operating handle 5; when the rivet 3 is fixed on the annulus 7 to be repaired, pulling the connecting wire 4 can adjust the distance between the rivets 3, and then drive the annulus 7 to be repaired to shrink. Wherein, the diameter of the connecting wire 4 is preferably 0.05-1 mm, and the material for making it is preferably but not limited to NiTi, PTFE, PA, PET or PEEK.
[0044] The method for using the annulus repair device comprises the following steps:
[0045] Step S1, the annulus repair device enters through the punctured blood vessel and reaches above the annulus 7 (the mitral valve) to be repaired. ...
Embodiment 2
[0062] This preferred embodiment discloses a valve ring repair device, the structure of which is basically the same as that of the preferred embodiment 1. The difference is that if Figure 10 to Figure 13 As shown, the rivet 3 is laser cut from a hard tube, or braided from metal wire, or composited from a hard tube laser cut and wire braided. The rivet 3 includes a rivet body 33 , and barbs 34 are formed on the outer surface of the rivet body 33 . Wherein, the combination of hard tube laser cutting and metal wire braiding means that a layer structure cut by hard tube material laser cutting is arranged on the inside or outside of another layer structure made of metal wire braiding.
[0063] The rivet 3 is prepared by laser cutting of a hard tube (such as a nickel-titanium alloy tube) and then expanded by a thermal power source, which has low cost and high processing efficiency; the rivet 3 is prepared by braiding a metal wire (such as a nickel-titanium alloy), and the product ...
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