CONFORMAL EXPANSION OF PROSTHETIC DEVICES TO ANATOMICAL SHAPES
First Claim
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1. An apparatus for radially expanding a prosthetic device in a conduit or orifice of a human body, the apparatus comprising:
- a delivery shaft having a lumen therethrough;
a prosthetic device comprising a frame member; and
a balloon member mounted on a distal end of the delivery shaft, the balloon member having a main axis and an outer mounting surface for mounting the prosthetic device in a crimped state thereon, the balloon member being configured to expand from a non-expanded state to an expanded state when pressurized by fluid passed through the lumen of the delivery shaft;
wherein the balloon member is configured to expand radially outwards from the non-expanded state to the expanded state to expand the prosthetic device to an expanded shape having a non-circular cross-sectional profile perpendicular to the main axis of the balloon member.
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Abstract
A system for expanding a device in a conduit or orifice of a human body includes a balloon member that is movable from a first configuration to a second configuration. External surfaces of the balloon member can collectively have a non-cylindrical cross-section relative to a main axis of the balloon member, such that the external surfaces of the balloon member generally conform to the anatomical shape of the conduit or orifice when the balloon member is in the second configuration.
7 Citations
18 Claims
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1. An apparatus for radially expanding a prosthetic device in a conduit or orifice of a human body, the apparatus comprising:
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a delivery shaft having a lumen therethrough; a prosthetic device comprising a frame member; and a balloon member mounted on a distal end of the delivery shaft, the balloon member having a main axis and an outer mounting surface for mounting the prosthetic device in a crimped state thereon, the balloon member being configured to expand from a non-expanded state to an expanded state when pressurized by fluid passed through the lumen of the delivery shaft; wherein the balloon member is configured to expand radially outwards from the non-expanded state to the expanded state to expand the prosthetic device to an expanded shape having a non-circular cross-sectional profile perpendicular to the main axis of the balloon member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for radially expanding a prosthetic device in a conduit or orifice of a human body, the apparatus comprising:
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a delivery shaft having a lumen therethrough; a balloon member mounted on a distal end of the delivery shaft, the balloon member having a main axis and an outer mounting surface for mounting the prosthetic device in a crimped state thereon, the balloon member being configured to expand from a non-expanded state to an expanded state when pressurized by fluid passed through the lumen of the delivery shaft, and a balloon-restricting member surrounding at least a portion of the balloon member, the balloon-restricting member having a plurality of openings through which portions of the balloon member extend when the balloon member is in the expanded state to expand the prosthetic device crimped thereon, wherein the plurality of openings are configured so that when the balloon member is in the expanded state, the balloon member has an outer profile that is non-circular in cross section perpendicular to the main axis of the balloon member so that the prosthetic device has an expanded shape having a non-circular cross-sectional profile perpendicular to the main axis of the balloon member. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification