Capsule extension to minimize leaflet protrusion
AssigneeMedtronic, Inc.
InventorChristopher MCCABE
Life of this patent
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Abstract
A delivery assembly for percutaneously delivering a transcatheter heart valve prosthesis into a vasculature of a patient includes a capsule and a capsule extension. The capsule is configured to constrain the transcatheter heart valve prosthesis therein. The capsule extension includes a mesh layer coupled to the capsule, reaching arms having a first end and a second end, the second end being coupled to the mesh layer, and a blocking arm coupled the first ends of the reaching arms. The blocking arm is configured to extend circumferentially around at least a portion of the transcatheter heart valve prosthesis to minimize leaflet protrusion through cells of a frame of the transcatheter heart valve prosthesis.
Claims20
A delivery assembly for percutaneously delivering a transcatheter heart valve prosthesis into a vasculature of a patient, the delivery assembly comprising:
- a capsule configured to constrain the transcatheter heart valve prosthesis therein;
- and
- a capsule extension including:
- a mesh layer coupled to the capsule;
- reaching arms having a first end and a second end, the first end being coupled to the mesh layer;
- and
- a blocking arm coupled the second ends of the reaching arms, wherein the blocking arm is configured to extend circumferentially around at least a portion of the transcatheter heart valve prosthesis to minimize leaflet protrusion through cells of a frame of the transcatheter heart valve prosthesis.
A method of delivering and deploying a transcatheter heart valve prosthesis to a treatment site within a vasculature of a patient, the method comprising:
- delivering the transcatheter heart valve prosthesis to the treatment site with the transcatheter heart valve prosthesis radially compressed within a capsule of a delivery device, the transcatheter heart valve prosthesis including a frame and a valve structure coupled to the frame, wherein the valve structure includes a plurality of leaflets, wherein the frame includes an access cell larger than other cells of the frame, and wherein the delivery device further includes a capsule extension coupled to the capsule and disposed between the transcatheter heart valve prosthesis and the capsule in a delivery configuration;
- proximally retracting the capsule to release the transcatheter heart valve prosthesis from the capsule and transitioning the capsule extension to a deployed configuration of the capsule extension, wherein in the deployed configuration of the capsule extension, the capsule extension extends distally from a distal end of the capsule and surrounds a portion of the transcatheter heart valve prosthesis, and a blocking arm of the capsule extension extends circumferentially around at least a portion of the transcatheter heart valve prosthesis and across the access cell to minimize leaflet protrusion through the access cell;
- determining whether to fully deploy the transcatheter heart valve prosthesis or to recapture the transcatheter heart valve prosthesis;
- wherein if it is determined to recapture the transcatheter heart valve prosthesis, distally advancing the capsule to recapture the transcatheter heart valve prosthesis;
- and
- wherein if it is determined to deploy the transcatheter heart valve prosthesis, proximally retracting the capsule further to fully deploy the transcatheter heart valve prosthesis.
Dependencies are inferred from the claim text.