Valve designs for left ventricular conduits
First Claim
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1. A method of treating a heart, the method comprising:
- providing at least one hollow implant defining a lumen and being configured to be positioned in a heart wall between a heart chamber and a coronary vessel, wherein, when the at least one hollow implant is positioned in the heart wall, the lumen at least partially defines a blood flow passage between the heart chamber and the coronary vessel, and wherein the passage is at least partially closable in response to movement of cardiac tissue during diastole so as to at least partially obstruct blood flow therethrough;
placing the at least one hollow implant in a heart wall between a heart chamber and a blood vessel; and
at least partially obstructing blood flow through the at least one hollow implant in response to movement of cardiac tissue during diastole.
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Abstract
Disclosed is a conduit that provides a bypass around a stenosis or occlusion in a coronary artery. The conduit is adapted to be positioned in the myocardium to provide a passage for blood to flow from a heart chamber to a coronary artery, at a site distal to the blockage or stenosis in the coronary artery. The conduit has a one-way valve positioned therein to prevent the backflow of blood from the coronary artery into the heart chamber.
479 Citations
50 Claims
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1. A method of treating a heart, the method comprising:
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providing at least one hollow implant defining a lumen and being configured to be positioned in a heart wall between a heart chamber and a coronary vessel, wherein, when the at least one hollow implant is positioned in the heart wall, the lumen at least partially defines a blood flow passage between the heart chamber and the coronary vessel, and wherein the passage is at least partially closable in response to movement of cardiac tissue during diastole so as to at least partially obstruct blood flow therethrough; placing the at least one hollow implant in a heart wall between a heart chamber and a blood vessel; and at least partially obstructing blood flow through the at least one hollow implant in response to movement of cardiac tissue during diastole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of treating a heart, the method comprising:
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providing at least one hollow implant defining a lumen, the at least one hollow implant being configured to be positioned in a heart wall between a heart chamber and a coronary vessel, wherein, when the at least one hollow implant is positioned in the heart wall, the lumen at least partially defines a blood flow passage between the heart chamber and the coronary vessel, and wherein the passage is at least partially closable by cardiac tissue entering the passage so as to at least partially obstruct blood flow therethrough during at least a portion of a cardiac cycle; placing the at least one hollow implant in a heart wall between a heart chamber and a blood vessel; and during at least a portion of a cardiac cycle, at least partially obstructing blood flow through the at least one hollow implant with cardiac tissue. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method for treating a heart, comprising:
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positioning a hollow implant in a heart wall between a heart chamber and a coronary vessel so as to support a blood flow passage between the heart chamber and the coronary vessel, the hollow implant having an interior wall surface defining a lumen; and moving portions of the interior wall surface relative to each other such that, during diastole, the portions reduce a cross-sectional area of the lumen so as to at least partially obstruct blood flow through the implant. - View Dependent Claims (41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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Specification