Paravalvular Leak Resistant Prosthetic Heart Valve System
AssigneeMedtronic, Inc.
InventorsWill Wang, Joshua Dudney, Kshitija P. Garde, Laura McKinley, Benjamin Wong
Life of this patent
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Abstract
A paravalvular leak resistant prosthetic heart valve system including a stent frame, a valve structure and a sealing mechanism. The stent frame has a surface. The valve structure is associated with the stent frame. The sealing mechanism at least partially extends over the surface of the stent frame. The sealing mechanism includes at least one semi-permeable membrane and an osmotic gradient driving material.
Claims20
A paravalvular leak resistant prosthetic heart valve system comprising:
- a stent frame having a surface;
- a valve structure associated with the stent frame;
- and
- a sealing mechanism at least partially extends over the surface of the stent frame, wherein the sealing mechanism comprises:
- at least one semi-permeable membrane;
- and
- at least one osmotic gradient driving material.
A method of reducing paravalvular leakage from a prosthetic heart valve, wherein the method comprises:
- providing a prosthetic heart valve comprising a stent frame having a surface, a valve structure associated with the stent frame, a sealing mechanism comprising at least one semi-permeable membrane and at least one osmotic material driving compound, wherein the sealing mechanism is positioned at least partially over the surface of the stent frame;
- and
- deploying the prosthetic heart valve in a patient, wherein the osmotic gradient driving material causes fluid of the patient to pass through the at least one semi-permeable membrane, wherein the fluid that passes through the at least one semi-permeable membrane causes the sealing mechanism to swell and such swelling reduces paravalvular leakage between the prosthetic heart valve and tissue of the patient.
Dependencies are inferred from the claim text.