Arrangement, a loop-shaped support, a prosthetic heart valve and a method of repairing or replacing a native heart valve

1. A kit for replacement of a native mitral valve, said kit comprising:

a loop-shaped element having a core and an outer layer coating the core and

a prosthetic mitral valve wherein:

the loop-shaped element comprises a first section configured for placement on an atrial side of the native mitral valve and a second section configured for placement on a ventricular side of the native mitral valve

at least a part of the first section has an open arcuate shape,

the prosthetic mitral valve is sized and shaped for positioning through at least the second section of the loop-shaped element,

the prosthetic mitral valve comprises a stent frame that is balloon expandable to have a cylindrical shape when expanded,

at least one elongate extension is connected to the loop-shaped element and extends from said loop-shaped element in a direction that is substantially parallel with a center axis of the loop-shaped element, and

the at least one elongate extension is configured for supporting the prosthetic mitral valve inside the loop-shaped element.

2. The kit according to claim 1 , wherein at least part of the first section has a first pitch, an end of the second section has a second pitch, and the second pitch is greater than the first pitch.

3. The kit according to claim 1 , wherein the loop-shaped element has a coil structure or a helical structure and wherein said coil structure or helical structure comprises at least two and a half turns of said coil structure or said helical structure.

4. The kit according to claim 1 , wherein the loop-shaped element is curved along an entire length of the loop-shaped element.

5. The kit according to claim 1 , wherein the open arcuate shape is less than a full turn.

6. The kit according to claim 1 , wherein at least a part of the loop-shaped element overlaps itself to form a coil or helical structure.

7. The kit according to claim 1 , wherein the prosthetic mitral valve is configured to radially expand so as to tightly position an outer surface of the prosthetic mitral valve in a direction towards the second section of the loop-shaped element, so as to seal an area between the prosthetic mitral valve and the loop-shaped element.

8. The kit according to claim 7 , wherein the loop-shaped element and the prosthetic mitral valve are configured to pinch tissue of the native mitral valve when said area between the prosthetic heart valve and the loop-shaped element is sealed.

9. The kit according to claim 1 , wherein the loop-shaped element comprises a shape memory material.

10. The kit according to claim 1 , wherein the core comprises a metal.

11. The kit according to claim 10 , wherein the outer layer of the loop-shaped element is made of a material that is softer than the core.

12. The kit according to claim 11 , wherein the outer layer of the loop-shaped element is made of a textile.

13. The kit according to claim 1 , wherein the outer layer of the loop-shaped element comprises a flexible woven material.

14. The kit according to claim 13 , wherein the flexible woven material is polyethylene or polytetrafluoroethylene.

15. The kit according to claim 13 , wherein the flexible woven material has a rough, holed or porous surface.

16. The kit according to claim 13 , wherein the flexible woven material conforms to the prosthetic mitral valve.

17. The kit according to claim 1 , wherein the loop-shaped element has a cross-sectional shape that is round.

18. The kit according to claim 1 , wherein the loop-shaped element has a cross-sectional shape that is substantially flattened at an inner segment and substantially rounded at an outer segment.

19. The kit according to claim 1 , wherein said at least one elongate extension inhibits a tilting movement of the prosthetic mitral valve in relation to a plane parallel with a mitral plane when the prosthetic mitral valve is placed in an operational position of the prosthetic mitral valve.

20. A kit for replacement of a native mitral valve, said kit comprising:

a loop-shaped element having a core and an outer layer coating the core and

a prosthetic mitral valve wherein:

the loop-shaped element comprises a first section configured for placement on an atrial side of the native mitral valve and a second section configured for placement on a ventricular side of the native mitral valve;

the loop-shaped element has a coil structure or a helical structure and wherein said coil structure or helical structure comprises at least two and a half turns of said coil structure or said helical structure;

at least a part of the first section has an open arcuate shape;

the prosthetic mitral valve is sized and shaped for positioning through the loop-shaped element;

the prosthetic mitral valve comprises a stent frame that is balloon expandable to have a cylindrical shape when expanded;

at least one extension is connected to the loop-shaped element and extends from said loop-shaped element in a direction that is substantially parallel with a center axis of the loop-shaped element; and

the at least one extension is configured for supporting the prosthetic mitral valve inside the loop-shaped element and to prevent a tilting movement of the prosthetic mitral valve in the loop-shaped support relative to a plane of the native mitral valve when the prosthetic mitral valve is placed in an operational position.