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US 11,890,187 B2Granted
Retaining mechanisms for prosthetic valves
AssigneeEdwards Lifesciences Corporation
InventorsOded Meiri, Tamir S. Levi, Ofir Witzman
Life of this patent
Estimating the term…
Abstract
Methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve are provided. For example, a support member is positioned to at least partially surround the native leaflets of a valve. A locking member is used to couple both ends of the support member, forming a support band. An expandable prosthetic heart valve is delivered into the native heart valve and expanded while the expandable prosthetic valve is at least partially within the support band, thereby causing one or more of the native leaflets of the native heart valve to be frictionally secured between the support band and the expanded prosthetic heart valve.
Claims19
An assembly comprising:
- a delivery catheter having a distal end;
- a guidewire configured to extend distally through the delivery catheter and beyond the distal end of the delivery catheter such that the guidewire can form at least a partial loop around a patient's native mitral valve leaflets;
- a support member configured to be advanced over the guidewire, wherein the support member comprises a first end portion, a second end portion, and a longitudinally extending linking portion between the first end portion and the second end portion, wherein the first end portion comprises a locking member configured to mate with the second end portion to form a closed annular band that is configured to be implantable entirely within a left ventricle of the patient;
- and
- a prosthetic heart valve that is deployable within the native mitral valve leaflets such that the native mitral valve leaflets are positioned between and engaged by the annular band and the prosthetic heart valve.
2 more elements
An assembly comprising:
- a first delivery catheter having a distal end;
- a guidewire configured to extend distally through the first delivery catheter and beyond the distal end of the first delivery catheter such that the guidewire can form at least a partial loop around the native mitral valve leaflets;
- a support member comprising a first end portion, a second end portion, and a longitudinally extending linking portion between the first end portion and the second end portion, wherein the support member is configured to be advanced over the guidewire and around the native mitral valve leaflets, wherein the first end portion comprises a locking member configured to mate with the second end portion to form an annular band encircling the native mitral valve leaflets;
- a prosthetic heart valve comprising an annular frame that is radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration, and a valve structure positioned within the frame;
- and
- a second delivery catheter configured to deliver the prosthetic heart valve into the patient's heart with the prosthetic heart valve in the radially collapsed configuration on a distal end portion of the second delivery catheter and deploy the prosthetic heart valve to the radially expanded configuration within the native mitral valve such that the native mitral valve leaflets are positioned between and engaged by the annular band and the prosthetic heart valve.
3 more elements
An assembly comprising:
- a delivery catheter having a distal end;
- a guidewire configured to extend distally through the delivery catheter and beyond the distal end of the delivery catheter such that the guidewire can form at least a partial loop around a patient's native mitral valve leaflets;
- a support member configured to be advanced over the guidewire, wherein the support member comprises a first end portion, a second end portion, and a longitudinally extending linking portion between the first end portion and the second end portion, wherein the first end portion comprises a locking member configured to mate with the second end portion to form an annular band;
- a precurved catheter configured to extend through a lumen of the delivery catheter, the precurved catheter comprising a precurved distal end portion that is biased to return to a predetermined curved configuration when it is advanced out of an opening in the delivery catheter, the precurved catheter comprising a lumen configured to receive the guidewire such that the guidewire can be advanced through the precurved catheter and the delivery catheter;
- and
- a snare configured to capture a distal end portion of the guidewire.
3 more elements
Dependencies are inferred from the claim text.