Apparatus and method for cutting a heart valve
First Claim
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1. An apparatus for cutting and removing living tissue comprising:
- a rotational axle device;
at least one non-mechanical cutting device adapted to be radially displaced from said rotational axle device upon deployment; and
a first collapsible plate adapted to cover an area from said rotational axle device to said at least one non-mechanical cutting device,wherein said rotational axle device comprises a guide device;
a first elongated instrument having a proximal end and a distal end;
a second elongated instrument adapted to advance over said first elongated instrument and having a proximal end and a distal end; and
a second collapsible plate, andwherein said non-mechanical cutting device is movably connected to said first elongated instrument or to said second elongated instrument,wherein said first collapsible plate or said second collapsible plate is associated with said first elongated instrument or said second elongated instrument.
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Abstract
An apparatus for cutting and removing a tissue is described, which includes a rotational axle device, at least one non-mechanical cutting device radially disposed from the rotational axle device, at least one device capable of protecting the heart ventricle, and a first collapsible plate. Also described is a method for cutting a tissue, such as a heart valve using the apparatus of the present invention and temporary placing a device capable of protecting the heart ventricle until a percutaneous heart valve is placed.
65 Citations
33 Claims
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1. An apparatus for cutting and removing living tissue comprising:
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a rotational axle device; at least one non-mechanical cutting device adapted to be radially displaced from said rotational axle device upon deployment; and a first collapsible plate adapted to cover an area from said rotational axle device to said at least one non-mechanical cutting device, wherein said rotational axle device comprises a guide device;
a first elongated instrument having a proximal end and a distal end;
a second elongated instrument adapted to advance over said first elongated instrument and having a proximal end and a distal end; and
a second collapsible plate, andwherein said non-mechanical cutting device is movably connected to said first elongated instrument or to said second elongated instrument, wherein said first collapsible plate or said second collapsible plate is associated with said first elongated instrument or said second elongated instrument. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of cutting a heart valve using an apparatus for cutting and removing living tissue, said apparatus comprising:
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a rotational axle device; at least one non-mechanical cutting device radially displaced from said rotational axle device; a first collapsible plate adapted to cover an area from said rotational axle device to said at least one non-mechanical cutting device, wherein said rotational axle device comprises a guide device;
a first elongated instrument having a proximal end and a distal end;
a second elongated instrument adapted to advance over said first elongated instrument and having a proximal end and a distal end; and
a second collapsible plate, wherein said method comprising;inserting said guide device into a vascular system of a patient; navigating said guide device to a pre-determined location; advancing said first elongated instrument, adapted to include said first collapsible plate or said second collapsible plate, over said guide device and navigating said first elongated instrument to a predetermined location; advancing said second elongated instrument, adapted to include said first collapsible plate or said second collapsible plate, over said first elongated instrument and navigating said second elongated instrument to a predetermined location;
wherein a non-mechanical cutting device is part of said second elongated instrument or is separately advanced over said second elongated instrument to a predetermined location;extending said first elongated instrument or said second elongated instrument having said second collapsible plate through said heart valve, wherein said distal end of said first elongated instrument or said second elongated instrument having said second collapsible plate is on one side of said heart valve and said distal end of said first elongated instrument or said second elongated instrument having said first collapsible plate is on opposing sides of said heart valve; expanding said first collapsible plate; expanding said second collapsible plate; and
cutting said heart valve by said non-mechanical cutting device. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for cutting a heart valve comprising:
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positioning a first collapsible plate in an artery approximate to said heart valve; positioning a second collapsible plate in a heart chamber approximate to said heart valve; positioning at least one non-mechanical cutting device approximate to said heart valve; cutting said heart valve; removing said heart valve; expanding a hemostatic object at distal end of a guide device; and
inserting a new heart valve.
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Specification