1. A method of repairing a native chordae of a patient using an artificial chordae, the method comprising: inserting the artificial chordae into the patient using a delivery system, wherein the artificial chordae is inserted in a non-deployed configuration; delivering the artificial chordae to a desired position within the patient; causing the artificial chordae to transition from the non-deployed configuration to a deployed configuration; anchoring the artificial chordae to a myocardium of the patient; attaching the artificial chordae to a leaflet of the native chordae at an attachment location; and tuning the artificial chordae to a desired tension. 2. The method of claim 1, further comprising delivering one or more additional devices to the desired position. 3. The method of claim 2, wherein the one or more additional devices comprise an anchor assembly and a leaflet capture assembly. 4. The method of claim 2, wherein the artificial chordae and the one or more additional devices are delivered via a single catheter. 5. The method of claim 2, wherein the artificial chordae and the one or more additional devices are delivered in parallel within a single catheter. 6. The method of claim 2, wherein the artificial chordae and the one or more additional devices are delivered in series within a single catheter. 7. The method of claim 2, further comprising tuning the one or more additional devices and the artificial chordae simultaneously. 8. The method of claim 1, further comprising installing a stress relief pad at the attachment location on the leaflet of the native chordae, wherein the stress relief pad is configured to lower stress on the leaflet and assist in healing thereof. 9. The method of claim 8, further comprising delivering one or more additional devices to the desired position, wherein the artificial chordae and the one or more additional devices are configured to share use of the stress relief pad. 10. The method of claim 1, wherein the artificial chordae is tuned via a tuning mechanism, the tuning mechanism comprising a pulley interfaced to a torque cable. 11. The method of claim 1, wherein the artificial chordae is tuned via a tuning mechanism, the tuning mechanism comprising a knot in a tightening suture that is configured to be adjusted to a desired length and locked to the desired length through movement of a proximal section of the tightening suture. 12. The method of claim 1, wherein the artificial chordae is anchored to the myocardium via an anchoring assembly, the anchoring assembly comprising a coiled geometry configured to screw into a tissue of the myocardium to secure the artificial chordae thereto. 13. The method of claim 1, wherein the artificial chordae is anchored to the myocardium via an anchoring assembly, the anchoring assembly comprising a barbed anchor, the barbed anchor configured to be delivered to the anchoring location in a non-deployed configuration and then deployed radially into a tissue of the myocardium to secure the artificial chordae thereto. 14. The method of claim 13, wherein the anchoring assembly comprises an outer member configured to: lock the barbed anchor in place during delivery; and control deployment of the barbed anchor through movement of the delivery system.
SYSTEMS AND METHODS FOR DELIVERY OF CHORDEA REPLACEMENT SYSTEM
Colli;
2020-01-01
Abstract
1. A method of repairing a native chordae of a patient using an artificial chordae, the method comprising: inserting the artificial chordae into the patient using a delivery system, wherein the artificial chordae is inserted in a non-deployed configuration; delivering the artificial chordae to a desired position within the patient; causing the artificial chordae to transition from the non-deployed configuration to a deployed configuration; anchoring the artificial chordae to a myocardium of the patient; attaching the artificial chordae to a leaflet of the native chordae at an attachment location; and tuning the artificial chordae to a desired tension. 2. The method of claim 1, further comprising delivering one or more additional devices to the desired position. 3. The method of claim 2, wherein the one or more additional devices comprise an anchor assembly and a leaflet capture assembly. 4. The method of claim 2, wherein the artificial chordae and the one or more additional devices are delivered via a single catheter. 5. The method of claim 2, wherein the artificial chordae and the one or more additional devices are delivered in parallel within a single catheter. 6. The method of claim 2, wherein the artificial chordae and the one or more additional devices are delivered in series within a single catheter. 7. The method of claim 2, further comprising tuning the one or more additional devices and the artificial chordae simultaneously. 8. The method of claim 1, further comprising installing a stress relief pad at the attachment location on the leaflet of the native chordae, wherein the stress relief pad is configured to lower stress on the leaflet and assist in healing thereof. 9. The method of claim 8, further comprising delivering one or more additional devices to the desired position, wherein the artificial chordae and the one or more additional devices are configured to share use of the stress relief pad. 10. The method of claim 1, wherein the artificial chordae is tuned via a tuning mechanism, the tuning mechanism comprising a pulley interfaced to a torque cable. 11. The method of claim 1, wherein the artificial chordae is tuned via a tuning mechanism, the tuning mechanism comprising a knot in a tightening suture that is configured to be adjusted to a desired length and locked to the desired length through movement of a proximal section of the tightening suture. 12. The method of claim 1, wherein the artificial chordae is anchored to the myocardium via an anchoring assembly, the anchoring assembly comprising a coiled geometry configured to screw into a tissue of the myocardium to secure the artificial chordae thereto. 13. The method of claim 1, wherein the artificial chordae is anchored to the myocardium via an anchoring assembly, the anchoring assembly comprising a barbed anchor, the barbed anchor configured to be delivered to the anchoring location in a non-deployed configuration and then deployed radially into a tissue of the myocardium to secure the artificial chordae thereto. 14. The method of claim 13, wherein the anchoring assembly comprises an outer member configured to: lock the barbed anchor in place during delivery; and control deployment of the barbed anchor through movement of the delivery system.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
