Heart valve repair method

1. A heart valve repair method, applied to a heart valve repair system, the heart valve repair system comprising a plurality of sutures and a suture implanting apparatus, at least one end of the suture being provided with at least one fixing member respectively, the suture implanting apparatus comprising a capturing assembly, a puncturing assembly, and a pushing shaft, the pushing shaft axially defining a plurality of lumens, the puncturing assembly and the capturing assembly being movably received in different lumens of the pushing shaft, the capturing assembly comprising a capturing rod, a distal clamp and a proximal clamp, the plurality of sutures being received in the capturing rod and extending out from the distal clamp, the puncturing assembly comprising a puncturing needle and a puncturing rod coupled to a proximal end of the puncturing needle, the heart valve repair method comprising:

advancing a distal end of the suture implanting apparatus from an outside of a body through a transapical approach into a left ventricle or a right ventricle of a heart;

pushing the capturing rod to separate the distal clamp from the proximal clamp and holding each leaflet of a heart valve using the distal clamp and the proximal clamp;

pushing the puncturing rod to drive the puncturing needle to puncture the leaflet and couple to the corresponding fixing member of the suture after puncturing through the leaflet;

withdrawing the puncturing rod to drive the fixing member and the suture through the leaflet to implant the suture into the leaflet; and

withdrawing the distal end of the suture implanting apparatus from the body.

2. The heart valve repair method according to claim 1 , wherein the heart valve repair method further comprises:

adjusting a length of the sutures remaining in the heart; and

fixing proximal ends of the sutures to a ventricular wall or a papillary muscle.

3. The heart valve repair method according to claim 1 , wherein the suture implanting apparatus further comprises a detecting assembly, the detecting assembly comprises at least one probe, and the at least one probe movably drills through the pushing shaft, the heart valve repair method further comprises:

using the probe to detect a current clamping state of the leaflet;

implanting the suture into the leaflet when the probe detects that the current clamping state of the leaflet is an effective clamping state.

4. The heart valve repair method according to claim 3 , wherein the heart valve repair method further comprises:

re-adjusting a position between the distal clamp and the proximal clamp such that there is a certain distance between the distal clamp and the proximal clamp;

re-adjusting a relative position between the capturing rod and the leaflet, and clamping the leaflet again through the distal clamp and the proximal clamp when the probe detects that the current clamping state of the leaflet is an ineffective clamping state;

detecting the current clamping state of the leaflet again using the probe; and

implanting the suture into the leaflet until the probe detects that the current clamping state of the leaflet is the effective clamping state.

5. The heart valve repair method according to claim 4 , wherein the suture implanting apparatus further comprises a gripping auxiliary assembly, the gripping auxiliary assembly drills through a lumen of the pushing shaft, the heart valve repair method also comprises:

pushing the gripping auxiliary assembly to support the leaflet before pushing the capturing rod to separate the distal clamp from the proximal clamp and clamping each leaflet; and

auxiliary supporting the leaflet using the gripping auxiliary assembly to prevent the leaflet from slipping out between the distal clamp and the proximal clamp in the process of re-adjusting the clamping position of the leaflet.

6. The heart valve repair method according to claim 1 , wherein the suture is provided with an anti-slip member, and the anti-slip member comprises a contact surface that is attached to the leaflet, the heart valve repair methods also comprises:

the anti-slip member not passing through the leaflet and the contact surface of the anti-slip member fitting an upper surface of the leaflet fit when the puncturing rod is withdrawn to drive the fixing member and the suture through the leaflet.