IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0674691
(2015-03-31)
|
| 등록번호 |
US-9974647
(2018-05-22)
|
|
발명자
/ 주소 |
- Ganesan, Kavitha
- Venkatasubramanian, Ramji T.
- Forsberg, Andrew T.
- Peterson, Alex A.
- Schweich, Jr., Cyril J.
- Mortier, Todd J.
|
| 출원인 / 주소 |
- Caisson Interventional, LLC
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
0 인용 특허 :
207 |
초록
Systems and methods for medical interventional procedures, including approaches to valve implantation. In one aspect, the methods and systems involve a modular approach to mitral valve therapy.
대표청구항
▼
1. A prosthetic mitral valve system configured to be implanted in multiple stages, comprising: an anchoring structure configured to be received adjacent a native mitral valve, the anchoring structure including sub-annular projections configured to engage a sub-annular commissural gutter of the nativ
1. A prosthetic mitral valve system configured to be implanted in multiple stages, comprising: an anchoring structure configured to be received adjacent a native mitral valve, the anchoring structure including sub-annular projections configured to engage a sub-annular commissural gutter of the native mitral valve, the anchoring structure including a retention structure configured to mate with an artificial valve assembly and to reside above an annulus of the native mitral valve, the retention structure comprising at least one supra-annular arch segment extending between adjacent sub-annular projections; andthe artificial valve assembly configured to be implanted separately from the anchoring structure and to mechanically engage with said at least one supra-annular arch segment of the retention structure,wherein the artificial valve assembly has at least one upper arch segment configured to nest within said at least one supra-annular arch segment of the retention structure, andwherein a sub-annular portion of the anchoring structure includes an anti-SAM (systolic anterior motion) component that is configured to hinder systolic anterior motion (SAM) of a native mitral valve leaflet. 2. The system of claim 1, wherein the at least one supra-annular arch segment comprises a plurality of supra-annular arch segments, wherein each of the supra-annular arch segments extends between a respective pair of adjacent sub-annular projections such that the supra-annular arch segments form a continuous ring-like structure configured to mechanically engage with the valve assembly, and wherein the supra-annular arch segments are at least partially covered with fabric. 3. The system of claim 1, wherein the anchoring structure includes a central hub. 4. The system of claim 1, wherein the artificial valve assembly comprises: an external outer surface configured to mechanically engage within an internal space defined by the anchoring structure; andan annulus passageway smaller in diameter than the outer surface. 5. The system of claim 1, wherein the artificial valve assembly comprises an expandable frame with a stent structure having an inferior end and a superior end, the inferior end having a non-circular axial opening larger than a circular axial opening in the superior end. 6. The system of claim 5, wherein the artificial valve assembly comprises: three arches disposed at the superior end of the expandable frame, each arch having an apex at the superior end and defining three troughs therebetween:three posts attached to each trough respectively and extending in an inferior direction; andtissue attached to the three arches and three posts to define three leaflets of the artificial valve assembly. 7. The system of claim 1, wherein the anchoring structure includes a central hub from which the sub-annular projections extend. 8. A prosthetic mitral valve system configured to be implanted in multiple stages, comprising: an anchoring structure configured to be received adjacent a native mitral valve, the anchoring structure including sub-annular projections configured to engage a sub-annular commissural gutter of the native mitral valve, the anchoring structure including a retention structure configured to reside above an annulus of the native mitral valve, the retention structure comprising at least one supra-annular arch segment extending between adjacent sub-annular projections; andan artificial valve assembly configured to be implanted separately from the anchoring structure and to be received by the anchoring structure,wherein the at least one supra-annular arch segment comprises a plurality of supra-annular arch segments, wherein each of the supra-annular arch segments extends between a respective pair of adjacent sub-annular projections such that the supra-annular arch segments form a continuous ring-like structure configured to mechanically engage with the valve assembly,wherein the artificial valve assembly comprises an expandable frame with a stent structure having an inferior end and a superior end, the inferior end having a non-circular axial opening larger than a circular axial opening in the superior end,wherein at least one particular supra-annular arch segment of the plurality of supra-annular arch segments has first and second end portions, and wherein the retention structure further comprises a supra-annular atrial stabilization segment extending between the first and second end portions, andwherein the anchoring structure includes a central hub member from which two or more of the sub-annular projections extend. 9. The system of claim 8, wherein the anchoring structure comprises three supra-annular arch segments. 10. The system of claim 9, wherein the retention structure further comprises bridge supports extending between each pair of adjacent supra-annular arch segments. 11. The system of claim 8, wherein the artificial valve assembly comprises: an external outer surface configured to mechanically engage within an internal space defined by the anchoring structure; andan annulus passageway smaller in diameter than the external outer surface. 12. The system of claim 8, wherein the sub-annular projections are positioned outwardly away from the retention structure. 13. The system of claim 8, wherein the artificial valve assembly has at least one upper arch segment configured to nest within said at least one supra-annular arch segment of the retention structure. 14. A prosthetic mitral valve system configured to be implanted in multiple stages, comprising: an anchoring structure configured to be received adjacent a native mitral valve, the anchoring structure including sub-annular projections configured to engage a sub-annular commissural gutter of the native mitral valve, the anchoring structure including a retention structure configured to mate with an artificial valve assembly and to reside above an annulus of the native mitral valve, the retention structure comprising at least one supra-annular arch segment extending between adjacent sub-annular projections; andthe artificial valve assembly configured to be implanted separately from the anchoring structure and to mechanically engage with said at least one supra-annular arch segment of the retention structure,wherein the artificial valve assembly has at least one upper arch segment configured to nest within said at least one supra-annular arch segment of the retention structure, andwherein a sub-annular portion of the anchoring structure includes an anti-SAM (systolic anterior motion) component at least partially covered by a fabric and including a portion for abutting a natural anterior leaflet to prevent the natural anterior leaflet from obstructing an aortic outflow tract. 15. The system of claim 14, wherein the anchoring structure comprises three supra-annular arch segments. 16. The system of claim 15, wherein the retention structure further comprises bridge supports extending between each pair of adjacent supra-annular arch segments. 17. The system of claim 14, wherein the anchoring structure includes a central hub. 18. The system of claim 14, wherein the artificial valve assembly comprises: an external outer surface configured to mechanically engage within an internal space defined by the anchoring structure; andan annulus passageway smaller in diameter than the outer surface. 19. The system of claim 14, wherein the artificial valve assembly comprises an expandable frame with a stent structure having an inferior end and a superior end, the inferior end having a non-circular axial opening larger than a circular axial opening in the superior end. 20. The system of claim 19, wherein the artificial valve assembly comprises: three arches disposed at the superior end of the expandable frame, each arch having an apex at the superior end and defining three troughs therebetween:three posts attached to each trough respectively and extending in an inferior direction; andtissue attached to the three arches and three posts to define three leaflets of the artificial valve assembly.
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