RETAINING MECHANISMS FOR PROSTHETIC VALVES
First Claim
1. A method, comprising:
- delivering a support structure to a position on or adjacent to the surface of the outflow side of a native heart valve of a patient, the support structure defining a support-structure interior;
delivering an expandable prosthetic heart valve into the native heart valve and into the support-structure interior; and
expanding the expandable prosthetic heart valve while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the native heart valve, thereby causing one or more native leaflets of the native heart valve to be frictionally secured between the support structure and the expanded prosthetic heart valve.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein are representative embodiments of methods, apparatus, and systems used to deliver a prosthetic heart valve to a deficient valve. In one embodiment, for instance, a support stent is delivered to a position on the surface of the outflow side of a native heart valve of a patient, the support stent defining a support-stent interior. An expandable prosthetic heart valve is delivered into the native heart valve from the inflow side of the native heart valve and into the support-stent interior. The expandable prosthetic heart valve is expanded while the expandable prosthetic valve is in the support-stent interior and while the support stent is at the position on the surface of the outflow side of the heart valve, thereby causing one or more of the native leaflets of the native heart valve to be frictionally secured between the support stent and the expanded prosthetic heart valve.
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Citations
29 Claims
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1. A method, comprising:
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delivering a support structure to a position on or adjacent to the surface of the outflow side of a native heart valve of a patient, the support structure defining a support-structure interior; delivering an expandable prosthetic heart valve into the native heart valve and into the support-structure interior; and expanding the expandable prosthetic heart valve while the expandable prosthetic heart valve is in the support-structure interior and while the support structure is at the position on or adjacent to the surface of the outflow side of the native heart valve, thereby causing one or more native leaflets of the native heart valve to be frictionally secured between the support structure and the expanded prosthetic heart valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising:
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advancing a guide catheter through the aortic arch of a patient so that a distal end of the guide catheter is near the aortic valve of the patient, the guide catheter at least partially enclosing a stent-delivery catheter and a compressed support stent releasably connected to the stent-delivery catheter; advancing the stent-delivery catheter through the guide catheter, thereby causing the support stent to be deployed from the distal end of the guide catheter and to become uncompressed; positioning the uncompressed support stent adjacent to or on a surface of the aortic side of the aortic valve such that the leaflets of the aortic valve are circumscribed by the uncompressed support stent; and disconnecting the uncompressed support stent from the stent-delivery catheter. - View Dependent Claims (14, 15, 16)
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17. An apparatus, comprising:
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a support stent having an annular body that defines one or more peaks and one or more valleys along its circumference, the support stent being radially compressible into a compressed state and self expandable into an uncompressed state, the support stent being sized such that it can be positioned within the aorta of a patient at a location adjacent to the aortic valve and thereby circumscribe the aortic valve, the support stent further comprising at least one retaining arm at or near a respective one of the peaks, the retaining arm comprising an aperture. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. An apparatus, comprising:
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a support stent having an annular main body portion and an annular, generally U-shaped rim portion at one end of the main body portion, the support stent being radially compressible into a compressed state and self expandable into an uncompressed state, and the rim portion having a diameter that is greater than a diameter of the annular main body portion and that is sized so that an outer perimeter of the rim portion will engage the walls surrounding the aortic valve of a patient when the support stent is positioned within the aorta of the patient at a location adjacent to the aortic valve. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification