Heart valve sealing devices and delivery devices therefor
An implantable prosthetic device includes a coaption portion, paddles, and clasps. The paddles are moveable from a closed position to an open position. The clasps are also moveable from an open position to a closed position. The clasps include a fixed arm and a plurality of movable arms. The implantable prosthetic device can be used to repair a native valve, such as a native mitral valve.
1. An implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein the clasp is a barbed clasp.
2. The implantable prosthetic device according to claim 1 , wherein the fixed arm and the plurality of movable arms are integrally formed.
3. The implantable prosthetic device according to claim 1 , wherein the moveable arms include a twisted portion.
4. The implantable prosthetic device according to claim 1 wherein actuating an actuation suture causes the moveable arms to collapse laterally and be gathered together.
5. The implantable prosthetic device according to claim 1 , wherein the clasp is formed from shape memory material and the fixed and moveable arms are shape set in a preloading position so that a pinch force exists between the fixed and moveable arms when the fixed arm is approximately parallel with the moveable arms.
6. A system comprising:
a catheter;
an implantable prosthetic device coupled to the catheter, the implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein one or more of the moveable arms are bent to form the hinge portions.
7. The system according to claim 6 , wherein the clasp is a barbed clasp.
8. The system according to claim 6 , wherein the fixed arm and the plurality of movable arms are integrally formed.
9. The system according to claim 6 , wherein the moveable arms include a twisted portion.
10. The system according to claim 6 wherein actuating an actuation suture causes the moveable arms to collapse laterally and be gathered together.
11. An implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein one or more of the moveable arms are bent to form the hinge portions.
12. An implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein the hinge portions comprise a plurality of spring segments, wherein each spring segment is connected to a plurality of spring segments.
13. The implantable prosthetic device according to claim 12 , wherein the spring segments are torsional spring segments.
14. An implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein the clasp is formed from shape memory material and the fixed and moveable arms are shape set in a preloading position so that a pinch force exists between the fixed and moveable arms when the fixed arm is approximately parallel with the moveable arms.
15. A system comprising:
a catheter;
an implantable prosthetic device coupled to the catheter, the implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein the clasp is a barbed clasp.
16. A system comprising:
a catheter;
an implantable prosthetic device coupled to the catheter, the implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein the hinge portions comprise a plurality of spring segments, wherein each spring segment is connected to a plurality of spring segments.
17. The system according to claim 16 , wherein the spring segments are torsional spring segments.
18. A system comprising:
a catheter;
an implantable prosthetic device coupled to the catheter, the implantable prosthetic device comprising:
a coaption portion;
an anchor portion comprising:
a plurality of paddles, the paddles having an outer portion and an inner portion and being extendable from a folded closed position to an open position;
a clasp attached to each of the plurality of paddles, the clasp comprising:
a fixed arm attached to the inner portion of the paddle;
a plurality of moveable arms;
a plurality of hinge portions hingeably connecting the fixed arm to the plurality of moveable arms; and
wherein the clasp is formed from shape memory material and the fixed and moveable arms are shape set in a preloading position so that a pinch force exists between the fixed and moveable arms when the fixed arm is approximately parallel with the moveable arms.