APPARATUS AND METHODS FOR DELIVERY OF PROSTHETIC MITRAL VALVE
First Claim
1. A method, comprising:
- inverting an outer frame of a prosthetic mitral valve when the prosthetic mitral valve is in a biased expanded configuration, the prosthetic mitral valve being formed with a shape-memory material;
after the inverting, inserting the prosthetic mitral valve into a lumen of a delivery sheath such that the prosthetic mitral valve is moved to a collapsed configuration, while remaining inverted;
inserting the delivery sheath through a trans-atrial entry site directly into a left atrium of a patient;
moving the prosthetic mitral valve distally out of the lumen of the delivery sheath such that the inverted outer frame of the prosthetic mitral valve reverts and the prosthetic mitral valve assumes its biased expanded configuration; and
positioning the prosthetic mitral valve within a mitral annulus of the heart.
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Accused Products
Abstract
In some embodiments, a method for delivery and deployment of a prosthetic mitral valve into a heart includes inserting an introducer sheath having a prosthetic mitral valve disposed therein in a collapsed configuration into the left atrium of a patient'"'"'s heart, through a gap between the native mitral valve leaflets, the left ventricle and apex of the heart. An epicardial pad device coupled to the prosthetic valve via a tether is moved distally out of the sheath. The introducer sheath is withdrawn into the left atrium of the heart. An inner delivery sheath is extended distally from within the introducer sheath and disposed within the left atrium. The prosthetic mitral valve is moved distally out of the inner delivery sheath and assumes a biased expanded configuration. The valve is positioned within the mitral annulus of the heart, and secured in place via the tether and epicardial pad device.
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Citations
16 Claims
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1. A method, comprising:
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inverting an outer frame of a prosthetic mitral valve when the prosthetic mitral valve is in a biased expanded configuration, the prosthetic mitral valve being formed with a shape-memory material; after the inverting, inserting the prosthetic mitral valve into a lumen of a delivery sheath such that the prosthetic mitral valve is moved to a collapsed configuration, while remaining inverted; inserting the delivery sheath through a trans-atrial entry site directly into a left atrium of a patient; moving the prosthetic mitral valve distally out of the lumen of the delivery sheath such that the inverted outer frame of the prosthetic mitral valve reverts and the prosthetic mitral valve assumes its biased expanded configuration; and positioning the prosthetic mitral valve within a mitral annulus of the heart. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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inverting an outer frame of a prosthetic mitral valve when the prosthetic mitral valve is in a biased expanded configuration, the prosthetic mitral valve being formed with a shape-memory material; after the inverting, inserting the prosthetic mitral valve into a lumen of a delivery sheath such that the prosthetic mitral valve is moved to a collapsed configuration, while remaining inverted; inserting the delivery sheath through a puncture site in a jugular vein of a patient, through the superior vena cava, and through the atrial septum wall and into the left atrium of the heart; moving the prosthetic mitral valve distally out of the lumen of the delivery sheath such that the inverted outer frame of the prosthetic mitral valve reverts and the prosthetic mitral valve assumes its biased expanded configuration; and positioning the prosthetic mitral valve within a mitral annulus of the heart. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification