Designs for left ventricular conduit
View Patent ↗A conduit is provided to provide a bypass around a blockage in the coronary artery. The conduit is adapted to be positioned in the myocardium or heart wall to provide a passage for blood to flow between a chamber of the heart such as the left ventricle and the coronary artery, distal to the blockage. The stent is self-expanding or uses a balloon to expand the stent in the heart wall. Various attachment means are provided to anchor the stent and prevent its migration.
1. An implant for defining a blood flow path from a heart chamber to a coronary vessel, said implant comprising:
a conduit having first and second ends;
said conduit sized and configured to extend through a heart myocardium to place said first end in fluid communication with a heart chamber;
said second end of said conduit adapted configured for connection to a coronary vessel, said second end including at least two anchor legs moveable between a flared position and a collapsed position, wherein said anchor legs are biased toward the flared position.
2. The implant of claim 1 , wherein said conduit is sufficiently rigid to withstand contraction forces of the myocardium and remain open during both systole and diastole.
3. An implant for defining a blood flow path from a heart chamber to a coronary vessel, said implant comprising:
a conduit having first and second ends;
said conduit sized and configured to extend through a heart myocardium to place said first end in fluid communication with a heart chamber;
said second end of said conduit configured for connection to a coronary vessel, said second end including at least two anchors moveable between a flared position and a collapsed position, wherein said anchors are biased toward the flared position.
4. The implant of claim 3 , wherein said conduit is sufficiently rigid to withstand contraction forces of the myocardium and remain open during both systole and diastole.
5. The implant of claim 3 , wherein the anchors include hooks.
6. The implant of claim 3 , wherein the anchors include barbs.
7. The implant of claim 3 , wherein one of the anchors includes a collar.
8. The implant of claim 3 , wherein the anchors include suture holes.
9. The implant of claim 3 , wherein the anchors include flanges.
10. The implant of claim 3 , wherein the anchors include flared edges.
11. An implant for defining a blood flow path from a heart chamber to a coronary vessel, said implant comprising:
a conduit having first and second ends;
said conduit sized and configured to extend through a heart myocardium to place said first end in fluid communication with a heart chamber;
said second end of said conduit configured for connection to a coronary vessel, said second end including a securement mechanism moveable between a flared position and a collapsed position, wherein said securement mechanism is biased toward the flared position.
12. The implant of claim 11 , wherein said conduit is sufficiently rigid to withstand contraction forces of the myocardium and remain open during both systole and diastole.
13. The implant of claim 11 , wherein the securement mechanism includes an anchor.
14. The implant of claim 11 , wherein the securement mechanism includes a leg.
15. The implant of claim 11 , wherein the securement mechanism includes a hook.
16. The implant of claim 11 , wherein the securement mechanism includes a barb.
17. The implant of claim 11 , wherein the securement mechanism includes a collar.
18. The implant of claim 11 , wherein the securement mechanism includes a suture hole.
19. The implant of claim 11 , wherein the securement mechanism includes a flange.
20. The implant of claim 11 , wherein the securement mechanism includes a flared edge.