Multi-window guide tunnel
View Patent ↗Described herein are devices and methods for delivering implants that comprise multiple coupled anchors. The anchors are secured to tissue using a multi-opening guide tunnel that is configured to releasably retain one or more portions of the implant located between two of the anchors. The releasable retention of one or more intervening portions of the implant maintains the position of the implant and the guide tunnel until the implant is secured to the tissue. The multi-opening guide tunnel permits securement of the multiple anchors without requiring repositioning of the guide tunnel for each anchor.
1. A method for performing a procedure inside a heart comprising:
positioning a multi-aperture catheter adjacent to heart tissue, the multi-aperture catheter comprising a lumen at least partially therethrough and a plurality of apertures defined by a plurality of latches, wherein the plurality of latches are locked;
advancing a device comprising at least one anchor coupled to a tether at least partially through the lumen, wherein the plurality of latches retain the tether within the lumen;
temporarily securing the multi-aperture catheter to the heart tissue using the device;
unlocking the plurality of latches to release the tether from the lumen;
withdrawing the multi-aperture catheter from the heart tissue, wherein at least a portion of the device remains secured to the heart tissue; and
removing the multi-aperture catheter from the heart.
2. The method of claim 1 wherein the multi-aperture catheter further comprises at least one locking element configured to lock the plurality of latches.
3. The method of claim 2 wherein unlocking the plurality of latches comprises withdrawing the at least one locking element.
4. The method of claim 1 wherein the plurality of openings are located along a length of the multi-aperture catheter.
5. The method of claim 1 wherein the multi-aperture catheter is positioned adjacent to the heart tissue using an intravascular approach.
6. The method of claim 1 wherein the multi-aperture catheter is positioned adjacent to the heart tissue using a surgical technique.
7. The method of claim 1 wherein the multi-aperture catheter is positioned adjacent to the heart tissue using port access to the heart.
8. The method of claim 1 wherein the heart tissue is ventricular tissue.
9. The method of claim 1 wherein the heart tissue is within the subannular groove region.
10. The method of claim 1 wherein the heart tissue is within the subvalvular space.
11. The method of claim 1 wherein the multi-aperture catheter is temporarily secured to heart tissue using the at least one anchor coupled to a tether.
12. The method of claim 1 wherein the device is deployed through the plurality of openings.
13. The method of claim 1 wherein the multi-aperture catheter comprises at least a first opening and a second opening, both openings positioned along a length of the multi-aperture catheter.
14. The method of claim 13 wherein the device comprises at least a first anchor and a second anchor, at least one of the first or second anchors being fixedly coupled to the tether.
15. The method of claim 14 wherein the first anchor is deployed through the first opening and the second anchor is deployed through the second opening.
16. The method of claim 15 wherein at least one of the first or second anchors is slidably coupled to the tether.
17. The method of claim 16 further comprising tensioning the tether.
18. The method of claim 17 further comprising securing the tether in its tensioned state.
19. The method of claim 18 further comprising cutting the tether.