Method of implantation of a heart valve prosthesis through a tubular catheter
First Claim
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1. A method for implanting a heart valve prosthesis into a patient'"'"'s heart, the method comprising:
- inserting the heart valve prosthesis into a barrel of an implanter, such that the prosthesis has a reduced cross-sectional dimension relative to a fully expanded cross-sectional dimension of the prosthesis;
opening a patient'"'"'s chest;
creating an opening in tissue located within the open patient'"'"'s chest to provide a substantially direct path that extends from the opening to a desired implantation site in the patient'"'"'s heart, the opening in the tissue being created in the patient'"'"'s pulmonary artery, the patient'"'"'s aorta or heart muscle of the patient so that the opening opposes the desired implantation site;
passing a length of the barrel through the opening in the tissue to position an end of the barrel of the implanter adjacent the desired implantation site in the patient'"'"'s heart such that the end of the barrel and the opening are along the direct path;
discharging the heart valve prosthesis from the barrel of the implanter adjacent the desired implantation site; and
expanding the heart valve prosthesis at the desired implantation site from the reduced cross-sectional dimension toward the expanded cross-sectional dimension, such that an exterior portion of the heart valve prosthesis engages adjacent tissue to mitigate movement of the prosthesis relative to the adjacent tissue.
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Abstract
A method of implanting a heart valve prosthesis is disclosed. A valve is mounted within a support apparatus that is deformable between an expanded and a reduced cross-sectional condition. The prosthesis can be implanted into a patient'"'"'s heart, such as during a direct vision procedure through a generally tubular implantation apparatus that maintains the prosthesis in its reduced cross-sectional condition until discharged from the tubular apparatus at a desired implantation site.
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Citations
25 Claims
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1. A method for implanting a heart valve prosthesis into a patient'"'"'s heart, the method comprising:
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inserting the heart valve prosthesis into a barrel of an implanter, such that the prosthesis has a reduced cross-sectional dimension relative to a fully expanded cross-sectional dimension of the prosthesis; opening a patient'"'"'s chest; creating an opening in tissue located within the open patient'"'"'s chest to provide a substantially direct path that extends from the opening to a desired implantation site in the patient'"'"'s heart, the opening in the tissue being created in the patient'"'"'s pulmonary artery, the patient'"'"'s aorta or heart muscle of the patient so that the opening opposes the desired implantation site; passing a length of the barrel through the opening in the tissue to position an end of the barrel of the implanter adjacent the desired implantation site in the patient'"'"'s heart such that the end of the barrel and the opening are along the direct path; discharging the heart valve prosthesis from the barrel of the implanter adjacent the desired implantation site; and expanding the heart valve prosthesis at the desired implantation site from the reduced cross-sectional dimension toward the expanded cross-sectional dimension, such that an exterior portion of the heart valve prosthesis engages adjacent tissue to mitigate movement of the prosthesis relative to the adjacent tissue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for implanting a heart valve prosthesis into a patient'"'"'s heart, the method comprising:
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inserting the heart valve prosthesis into a generally cylindrical and elongated enclosure, such that the prosthesis has a reduced cross-sectional dimension corresponding to a dimension of the cylindrical enclosure, the prosthesis being configured to self-expand from the reduced cross-sectional dimension to an expanded cross-sectional dimension, which is greater than the reduced cross-sectional dimension; creating an opening in tissue to provide a substantially linear path extending along a line of sight from the opening to a desired implantation position for replacing a heart valve in the patient'"'"'s heart; passing an open end of the cylindrical enclosure through the opening; positioning the open end of the cylindrical enclosure adjacent the desired implantation position in the patient'"'"'s heart such that the open end of the cylindrical enclosure and the opening; discharging the heart valve prosthesis from the cylindrical enclosure at the desired implantation position, whereupon the heart valve prosthesis expands from the reduced cross-sectional dimension to an expanded cross-sectional dimension, such that an exterior portion of the heart valve prosthesis engages adjacent tissue to mitigate movement of the prosthesis relative to the adjacent tissue. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method for implanting a heart valve prosthesis, comprising:
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creating an opening in a tissue that provides a linear path extending from the opening to a desired implantation position in the patient'"'"'s heart, the opening being created in one of the patient'"'"'s pulmonary artery, the patient'"'"'s aorta or heart muscle of the patient to provide the linear path; passing a length of a cylindrical barrel through the opening to position an end of the barrel at the desired position in the patient'"'"'s heart, an expandable heart valve prosthesis being located within the barrel; and discharging the heart valve prosthesis from the barrel to the desired implantation position for replacing a heart valve in the patient'"'"'s heart so that the discharged heart valve prosthesis expands to an expanded cross sectional dimension that contacts adjacent tissue in the patient'"'"'s heart to mitigate movement of the heart valve prosthesis relative to the patient'"'"'s heart. - View Dependent Claims (19, 20)
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21. A method for implanting a heart valve prosthesis into a patient'"'"'s heart, the method comprising:
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placing the heart valve prosthesis into an elongated barrel of an implanter, such that the prosthesis has a reduced cross-sectional dimension relative to an expanded cross-sectional dimension of the prosthesis; creating an opening through the patient'"'"'s heart muscle such that a desired implantation site in the patient'"'"'s heart is in a line of sight with the opening; inserting a length of the barrel through the opening in the heart muscle to position an end of the barrel to a location that is adjacent the desired implantation site in the patient'"'"'s heart, such that the end of the barrel is in a line of sight with the opening; discharging the heart valve prosthesis from the barrel of the implanter at the location adjacent the desired implantation site; and expanding the heart valve prosthesis at the desired implantation site from the reduced cross-sectional dimension toward the expanded cross-sectional dimension, such that an exterior portion of the heart valve prosthesis engages adjacent tissue to mitigate movement of the prosthesis relative to the adjacent tissue. - View Dependent Claims (22, 23, 24, 25)
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Specification