Suturing devices for heart valve surgery
Disclosed are devices and methods for delivering several sutures accurately and simultaneously around the perimeter of an annular prosthetic device (prosthetic heart valve, annuloplasty ring, etc.) to secure the prosthetic device within a native heart valve region. Devices can comprise a proximal handle portion including an actuator and a distal suturing portion including several curved and straight needles arrayed around the shaft axis. The straight needles and the curved needles are configured to simultaneously guide a plurality of sutures through the native tissue and through the annular prosthetic device. The actuator can cause the straight needles to move axially relative to the curved needles and can also cause the curved needles to rotate, such that the motions are coordinated to simultaneously place all the sutures.
1. A method for suturing an annular prosthetic device within a native heart valve region, the method comprising:
introducing a suturing device into the native heart valve region, with the annular prosthetic device positioned adjacent to the suturing device within the native heart valve region;
causing curved needles of the suturing device to penetrate through tissue of the native heart valve region and be positioned adjacent to the annular prosthetic device, the curved needles guiding a plurality of sutures through the tissue and adjacent to the annular prosthetic device; and
causing straight needles of the suturing device to penetrate the annular prosthetic device, engaging the plurality of sutures from the curved needles, and pulling the plurality of sutures through the annular prosthetic device, such that each of the plurality of sutures extends through both the tissue and through the annular prosthetic device.
2. The method of claim 1 , wherein the plurality of sutures are placed around a perimeter of the annular prosthetic device simultaneously.
3. The method of claim 1 , wherein causing the curved needles to penetrate through tissue of the native heart valve region comprises rotating each curved needle about its own independent drive shaft.
4. The method of claim 3 , wherein rotating each curved needle about its own independent drive shaft comprises causing a central driver to rotate such that the central driver rotates each of the drive shafts at the same time and same rate.
5. The method of claim 1 , wherein causing the straight needles to penetrate the annular prosthetic device comprises moving the straight needles distally in unison relative to the curved needles, and pulling the plurality of sutures through the annular prosthetic device comprises moving the straight needles proximally in unison relative to the curved needles.
6. The method of claim 1 , wherein simultaneously the curved needles rotate and the straight needles move axially relative to the straight needles.
7. The method of claim 1 , wherein causing the curved needles of the suturing device to penetrate through tissue of the native heart valve region comprises causing the curved needles to penetrate proximally through the tissue.
8. The method of claim 1 , wherein causing straight needles of the suturing device to penetrate the annular prosthetic device comprises causing the straight needles to penetrate proximally through the annular prosthetic device.
9. The method of claim 1 , further comprising fastening the plurality of sutures with suture clips to secure the annular prosthetic device to the tissue.
10. The method of claim 1 , wherein the annular prosthetic device comprises a prosthetic heart valve.
11. The method of claim 1 , wherein the annular prosthetic device comprises an annuloplasty ring.
12. The method of claim 1 , wherein the native heart valve region is a native aortic valve region.
13. The method of claim 1 , wherein the curved needles simultaneously guide the plurality of sutures through tissue in the native heart valve region and adjacent to the annular prosthetic device when the curved needles rotate.
14. The method of claim 1 , wherein the straight needles simultaneously engage the plurality of sutures and pull the plurality of sutures proximally from the curved needles through the annular prosthetic device.
15. The method of claim 1 , wherein the curved needles move radially and axially relative to a longitudinal axis of the suturing device as the curved needles rotate.