Transapical mitral valve replacement
First Claim
Patent Images
1. A system for heart valve replacement, the system comprising:
- a catheter including;
an outer sheath;
a plurality of wires disposed within the outer sheath, each of the plurality of wires terminating in at least one hook-shaped coupler; and
a plurality of sleeves, each one of the plurality of sleeves being disposed about one of the plurality of wires; and
a prosthetic heart valve including;
a collapsible and expandable stent having an outflow end and an inflow end, the outflow end including a plurality of legs, each of the plurality of legs extending between an attached end coupled to the stent, and a free end unattached to the stent, the plurality of legs being movable between a substantially straight configuration and a curled, relaxed configuration extending away from the outflow end such that a first distance between the inflow end and the free end is greater than a second distance between the inflow end and the attached end, the plurality of legs being capable of grasping heart tissue in the relaxed configuration; and
a plurality of closed, circular anchoring features, each anchoring feature being disposed on the free end of respective ones of the plurality of legs, each of the plurality of anchoring features being coupleable to a hook-shaped coupler of the catheter.
1 Assignment
0 Petitions
Accused Products
Abstract
A prosthetic heart valve includes a collapsible and expandable stent having an outflow end and an inflow end, a plurality of commissure features attached to the stent, a plurality of anchoring features disposed on legs of the stent, the plurality of anchoring features being coupleable to a delivery device for repositioning, and a valve assembly disposed within the stent. The anchoring features may be configured to attach to heart tissue to help secure the prosthetic heart valve in an operating position.
199 Citations
13 Claims
-
1. A system for heart valve replacement, the system comprising:
-
a catheter including; an outer sheath; a plurality of wires disposed within the outer sheath, each of the plurality of wires terminating in at least one hook-shaped coupler; and a plurality of sleeves, each one of the plurality of sleeves being disposed about one of the plurality of wires; and a prosthetic heart valve including; a collapsible and expandable stent having an outflow end and an inflow end, the outflow end including a plurality of legs, each of the plurality of legs extending between an attached end coupled to the stent, and a free end unattached to the stent, the plurality of legs being movable between a substantially straight configuration and a curled, relaxed configuration extending away from the outflow end such that a first distance between the inflow end and the free end is greater than a second distance between the inflow end and the attached end, the plurality of legs being capable of grasping heart tissue in the relaxed configuration; and a plurality of closed, circular anchoring features, each anchoring feature being disposed on the free end of respective ones of the plurality of legs, each of the plurality of anchoring features being coupleable to a hook-shaped coupler of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of deploying a prosthetic heart valve at a target site, the prosthetic heart valve including a collapsible and expandable stent having an outflow end and an inflow end, the outflow end including a plurality of legs, each of the plurality of legs extending between an attached end coupled to the stent, and a free end unattached to the stent, the plurality of legs being movable between a substantially straight configuration and a relaxed configuration extending away from the outflow end such that a first distance between the inflow end and the free end is greater than a second distance between the inflow end and the attached end, and a plurality of anchoring features, each anchoring feature being disposed on the free end of respective ones of the plurality of legs, each of the plurality of anchoring features being coupleable to a coupler of the catheter, and a collapsible and expandable valve assembly disposed within the stent, the method comprising:
-
introducing a delivery device to the target site, the delivery device including an outer sheath, the prosthetic heart valve being disposed within the outer sheath, a plurality of wires disposed within the outer sheath, each of the plurality of wires terminating in a coupler directly connected to one of the anchoring features of the heart valve, and a plurality of sleeves, each one of the plurality of sleeves being disposed about one of the plurality of wires; withdrawing the sheath a first distance to partially deploy the prosthetic heart valve at the target site such that the valve assembly is partially deployed at the first distance and can function as intended while the anchoring features are coupled to the plurality of wires; and pulling at least one of the plurality of wires to reposition the heart valve. - View Dependent Claims (10, 11, 12, 13)
-
Specification