Methods and apparatus for atrioventricular valve repair
First Claim
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1. A method of repairing a mitral valve in the heart of a patient by correcting an insufficiency of a valve leaflet of the mitral valve, wherein the valve is connected to at least one natural chordae, said method comprising:
- accessing the patient'"'"'s mitral valve via at least one of a guide catheter and an interventional tool;
securing a first end of a fastening mechanism positioned in the heart by the at least one of a guide catheter and an interventional tool to the valve leaflet; and
coupling a second end of the fastening mechanism within a left ventricle of the heart to a cardiac structure other than the mitral valve leaflet such that the fastening mechanism simulates the function of a natural chordae, wherein said method is performed without penetrating through a myocardium, and wherein the at least one of a guide catheter and an interventional tool is removed from the heart such that the fastening mechanism remains coupled to the valve leaflet and the cardiac structure.
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Abstract
Methods and apparatus for use in repairing an atrioventricular valve in a patient are provided. The methods comprise accessing the patient'"'"'s atrioventricular valve percutaneously, securing a fastening mechanism to a valve leaflet, and coupling the valve leaflet, while the patient'"'"'s heart remains beating, to at least one of a ventricular wall adjacent the atrioventricular valve, a papillary muscle, at least one valve chordae, and a valve annulus to facilitate reducing leakage through the valve.
144 Citations
27 Claims
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1. A method of repairing a mitral valve in the heart of a patient by correcting an insufficiency of a valve leaflet of the mitral valve, wherein the valve is connected to at least one natural chordae, said method comprising:
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accessing the patient'"'"'s mitral valve via at least one of a guide catheter and an interventional tool; securing a first end of a fastening mechanism positioned in the heart by the at least one of a guide catheter and an interventional tool to the valve leaflet; and coupling a second end of the fastening mechanism within a left ventricle of the heart to a cardiac structure other than the mitral valve leaflet such that the fastening mechanism simulates the function of a natural chordae, wherein said method is performed without penetrating through a myocardium, and wherein the at least one of a guide catheter and an interventional tool is removed from the heart such that the fastening mechanism remains coupled to the valve leaflet and the cardiac structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of enhancing the operation of a valve leaflet in a patient'"'"'s heart valve by correcting an insufficiency of the valve leaflet, said method comprising:
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inserting a guide catheter through one of the venous and arterial systems of the patient to approach the heart valve; guiding a fastening mechanism through the guide catheter towards the patient'"'"'s heart; securely coupling a first end of the fastening mechanism to the valve leaflet using one of fusing, gluing, stapling, clipping, riveting, anchoring, and suturing;
securely coupling, after the first end is securely coupled to the valve leaflet, a second end of the fastening mechanism within a corresponding ventricle of the heart to a cardiac structure other than the valve leaflet to facilitate enhancing operation of the heart valve, wherein said method is performed without penetrating through a myocardium; andremoving the guide catheter from the patient'"'"'s heart after the fastening mechanism is securely coupled to the valve leaflet and to the cardiac structure, such that the fastening mechanism remains coupled within the patient'"'"'s heart and simulates the function of a native chordae. - View Dependent Claims (14, 15, 16, 17)
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18. A method of repairing an atrioventricular valve in a patient by correcting an insufficiency of a valve leaflet of the atrioventricular valve, said method comprising:
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accessing the patient'"'"'s atrioventricular valve using at least one of a guide catheter and an interventional tool; securing a fastening mechanism positioned by the at least one of a guide catheter and an interventional tool to the valve leaflet; coupling the fastening mechanism, while the patient'"'"'s heart remains beating, to at least one of a ventricular wall adjacent the atrioventricular valve, a papillary muscle, and a valve annulus to facilitate reducing leakage through the atrioventricular valve, wherein said method is performed without penetrating through a myocardium, and wherein the fastening mechanism is secured to the valve leaflet prior to being secured to at least one of a ventricular wall adjacent the atrioventricular valve, a papillary muscle, and a valve annulus; and removing the at least one of a guide catheter and an interventional tool from the patient such that the fastening mechanism remains securely coupled to the valve leaflet and to at least one of a ventricular wall adjacent the atrioventricular valve, a papillary muscle, and a valve annulus, such that the fastening mechanism simulates the function of a native chordae. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification